PFC Mini Design Guide

USER GUIDE | UG:115
PFC MiniTM
Power Factor Corrected AC-DC Switcher
March 2010
Contents
Page
Overview
of Product
1
Mechanical
Considerations
2
PFC Mini
Do’s and Don’ts
3
Technical Description
3
PFC Mini
Configuration
Layout
5
Part Numbering
6
Quick Install
Instructions
7
Overview
Mechanical Drawings
10
Output Connectors
11
Interface Connections 12
Output Power
De-rating
20
Specifications
21
Current Share Boards
24
Low Leakage Version
27
Low Output Ripple
27
The PFC Mini is an extremely low profile, 1 RU, switching power supply that combines
the advantages of power factor correction and high power density. This design guide
covers both standard and rugged chassis COTS (MI) versions of the product. The PFC
Mini can provide up to six isolated outputs (three slots) and each slot accommodates
the following Vicor DC-DC Converters.
VI/E-200 and VI/E-J00 series: One VI/E-200 or Two VI/E-J00 converters
Maxi, Mini Micro series: One Maxi, Two Mini converters (Micros cannot be used)
The use of these converters give the PFC Mini the inherent power flexibility typical
of all Vicor products. Using the VSPOC configurator tool available on vicorpower.
com, anybody can now configure a PFC Mini (and other Vicor power supplies) online.
Accepting input voltages of 85 Vac to 264 Vac, and 100 Vdc to 380 Vdc, the PFC Mini can
provide up to 1,500 Watts in a package size of 1.72" H (43,6 mm) x 6" W (152,4 mm)
x 12.2" L (309,9 mm). The PFC Mini is factory configured to meet user requirements.
Note: If you have a PFC Mini that shipped from October 2005 onwards, please see Page 19
for more details.
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Applications Engineering: 800 927.9474
Page 1
Standard Features
n Power Factor Correction: 0.99 at 115 Vac; 0.95 at 230 Vac
n Universal Input: 85 – 264 Vac, 47 – 500 Hz, or 100 – 380 Vdc
n Power Output: 1,500 W at 230 Vac; 800 W at 115 Vac
n Up to 6 isolated outputs (3 slots)
n Fan cooled
n Full power to 45°C; half power at 65°C
nConducted EMI:
VI-200/VI-J00 series:
Maxi, Mini, Micro series:
FCC Class B
EN55022 Class B
FCC Class A
EN55022 Class A
(certain configurations meet EN55022 Class B)
n Harmonic Distortion complies with EN61000-3-2
n AC Power OK status signal
n Autosense (for more information, see Page 8 and Page 14)
n Output overcurrent protection on all outputs
n Output overvoltage protection (not applicable when using VI-J00)
n Output overtemperature limiting (not applicable when using VI-J00)
n Ride-through (hold-up) time: >20 ms at 1,200 W load (nominal line)
n Size: 1.72" H (43,6 mm) x 6" W (152,4 mm) x 12.2" L (309,9 mm)
n Safety Agency Approvals: CE Mark, cTÜVus, UL
(Note: Certain MI chassis may not carry all safety certs)
Optional Features
n Extended temperature range output converters
n Current share board - see Page 24
n RAM modules for low noise applications - see Page 27
n Connector kit available (#19-130047)
n Low leakage available - see Page 27
n Office environment fan - see Page 27
n MI chassis specific options
- Mil-STD 810 for Shock and Vibration
- Mil-STD 704 and 1399 for overvoltage and transients
- -40°C Operation
- Conformal coating - contact factory
Mechanical Considerations
The PFC Mini can be mounted on either of two surfaces using standard 8-32 (4 mm) size
screws. Maximum allowable torque is 4.4 in. lbs., and the maximum penetration is 0.16 in. (4 mm).
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Page 2
When selecting a mounting location and orientation, the unit should be positioned so
airflow is not restricted. Maintain a 2" (5,1 cm) minimum clearance at both ends of the
PFC Mini, and route all cables so airflow is not obstructed. The power supply draws air
in at the fan side/AC input side and exhausts air out the load side. If airflow ducting is
used, avoid sharp turns that could create back pressure. The fans move approximately
20 CFM of air.
Avoid excessive bending of output power cables after they are connected to the output
terminals. For high-current outputs, use cable ties to support heavy cables and minimize
mechanical stress on connectors. Be careful not to short-out to neighboring outputs. The
maximum torque recommended on output nuts is 10 in. lbs.
Avoid applications in which the unit is exposed to excessive shock or vibration levels. In
such applications, a shock-absorbing mount design is required.
PFC Mini Do’s and Don’ts
n If Sense jumpers are removed, do not leave Sense lines open
(especially if unit does not have Autosense). Sense lines must be terminated to their respective outputs. Use twisted pair 20-22 AWG wire when installing
Remote Sense.
n NEVER disconnect the +Out and -Out load wires while the supply is operating as disconnecting WILL cause damage to the power supply. Ensure load wires connected before remote sense connected.
n To prevent damage to supply, verify polarity of remote sense connection before turning supply on.
n Always turn the power supply off before disconnecting input or output wires.
n Do not restrict airflow to the unit. The cooling fan draws air into the unit and forces it out at the output terminals.
n Run the output (+/–) power cables next to each other to minimize inductance.
n Do not repair or modify the power supply in any manner. Doing so will void the warranty. Contact Factory.
n Insert proper fault protection at power supply input terminals (i.e., a fuse).
n Use proper size wires to avoid overheating and excessive voltage drop.
n Output voltages over 60 Vdc, whether from individual modules or series arrays, are considered as hazardous secondary outputs under UL60950. Appropriate care must be taken in design implementation of the supply.
Technical Description
The PFC Mini consists of an offline single phase, power-factor-corrected front end, EMI
filter, cooling fan, customer interface, associated housekeeping circuits, and a selection
of Vicor’s DC-DC converters.
Input AC mains voltage is applied to a terminal block. The input current is passed
through an EMI filter designed to meet conducted noise limit “B” specifications in
FCC Part 15 and EN55022, Class B (with VI-200/VI-J00 series modules. If Maxi, Mini,
Micro series modules are used, it meets FCC Class A and EN55022 Class A. (Certain
configurations meet Class B).
At start-up, inrush current is limited by a PTC thermistor. The PTC is shunted out shortly
after initial power-up by a DC bus voltage sense circuit driving a relay. After rectification,
the input voltage is put through a boost converter that keeps the AC input current
sinusoidal and synchronized with the input AC voltage (in compliance with
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Page 3
EN61000-3-2). The boost converter delivers a regulated input to the hold-up capacitors
and a high-voltage backplane. The backplane supplies power to the DC-DC converters
that provide the desired low voltage regulated outputs.
Voltage conversion is achieved by Vicor’s family of zero-current switching (ZCS) DC-DC
converters. These are forward converters in which the main switching element switches
at zero current. This patented topology has a number of unique attributes: low switching
losses; high frequency operation, resulting in reduced size for magnetics and capacitors;
excellent line and load regulation; wide adjustment range for output; low EMI/RFI
emission and high efficiencies.
At initial power-up, the PFC Mini outputs are disabled to limit the inrush current and
to allow the DC bus potential to settle out to the correct operating level. A low-power
flyback converter operating with PWM current-mode control converts the high voltage
DC bus into regulated low voltage to power the internal housekeeping circuits and DC cooling fans.
The internal housekeeping VCC comes up within two seconds after the application of
input power. Once the high voltage bus is within operating limits, the AC Power OK
signal asserts to a TTL "1," indicating the input power is OK, and enables the power
outputs. An auxiliary VCC output of 5 Vdc sourcing up to 0.3 A is provided for peripheral use.
An output Enable/Disable function is provided by using an optocoupler to control
Vicor’s DC-DC converters. If the Enable/Disable control pin is pulled low, the
optocoupler turns on and disables the output. The nominal delay associated for an
output to come up when measured from release of the Enable/Disable pin is 5-10 ms.
The General Shutdown function controls all outputs simultaneously and works in a
similar manner.
Figure 1.
Input
Line Filter
Rectifier
Soft Start
Circuit
Boost Converter
High Voltage
Bus
Waveform
Sample
Output Card #1
Output Card #2
Current
Sample
E/D Control
Fan
UG:115
Power
Output
PFC Control
Output Card #3
Customer
Interface
Power
Output
vicorpower.com Power
Output
Enable/Disable Control
Isolated
Housekeeping
Power
Applications Engineering: 800 927.9474
Page 4
PFC Mini Configuration Layout
AC input
Fan
Fan
AC input
Fan
Fan
S 3 -M 2
S1-M1
S2-M1
S3-M1
S1-M1
S2-M1
S 3-M1
Slot 1
Slot 2
Slot 3
Slot 1
Slot 2
Slot 3
Shown above, are two sample PFC Mini configuration layouts. Due to the configurability
nature of the PFC Mini, various output combinations are possible. See Page 12 for more
information about your output connections. The PFC Mini has three slots and each slot
accommodates either full or half-brick modules.
Please note that the maximum output power of the PFC Mini is 1,500 W at 230 Vac, 800 W at 115 Vac, irrespective of the maximum output power of the modules e.g. if
a PFC Mini is configured with three Maxi modules, on the configuration sheet, the
maximum output power of the module (600 W) is listed. However, irrespective of the
maximum output power of the three Maxi modules (1,800 W), the maximum output
power of the PFC Mini is still 1,500 W at 230 Vac and 800 W at 115 Vac.
When populated with 12 V modules, the maximum output power per slot is 500 W (with other modules it is 600 W). Hence, when a 12 V Maxi module is used,
the maximum output power is limited to 500 W. If a 12 V Mini module is used, the
maximum output power is limited to 250 W.
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Page 5
SLO T#3
V375A5C400BN4
E/D#2
SLO T#2
Output #1
VI-J60-CY -S
E/D#3
V375A5C400BN4
E/D#1
SLOT #1
Output #2
VI-J63-CW-S
E/D#3
Configuration Example:
SLOT#
1
VOLTS
AMPS
WATTS
5.0
80
800
2
Modules
V375A5C400BN4*
V375
V375A5C400BN4*
V375A5C40
3 (M1)
5.0
10
50
VI-J60-CY-S*
VI-
3 (M2)
24.0
4.2
100
VI-J63-CW -S*
VI-
* Actual module part numbers may vary depending on customer configuration
E/D = Enable/Disable
Part Numbering
PFC Mini
PMx1-x2 x (x4)-xxxx(-x5)(-x6)
eg. PM4-22-2988
PM1-03B-48
PM3-03-2643-2
PM6-60-2888-2-QF
PM = PM
x1 = number of outputs
x2 = number of VI-200/VI-J00
x3 = number of Maxi, Mini
x4 = optional - standard product designator
xxxx = configuration/customer specific # assigned by Vicor
x5 = optional factory assigned note - MI =rugged chassis + MC for conformal coated rugged
x6 = additional option codes
revised to orginal configuration - QF = quiet fan/office enviornment
LL = low leakage
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Page 6
PFC MegaPAC “Quick Install” Instructions (For Mechanical Drawing, see Page 10)
Mounting the PFC Mini
n Mount the PFC Mini on either of two sides.
n Use #8-32 or 4 mm mounting screws. Maximum penetration should not exceed 0.16" (4 mm).
n Maintain 2" (5,1 cm) clearance at both ends of power supply for airflow.
Input Connections
Input Power MBJ1
n Apply input AC power to terminal block MBJ1 using a pressure screw terminal.
NOTE: SET SCREW MAX
TORQUE = 4.4 IN. LBS.
115-230 VAC 10A
47 TO 500 Hz
300VDC
---
L1
DO NOT
OPERATE
WITHOUT
EARTH GND
L2/N
INPUT CONNECTIONS
MBJ1-1 EARTH GROUND
MSJ1-2 L2-NEUTRAL
MBJ1-3 L1
n Strip length of AC power conductors to be 0.35 inches.
n Maximum torque is 4.4 in. lbs.
n Place a fuse or circuit breaker in the input line for safety requirements.
n The connector manufacturer recommends the wires not be tinned. A ferrule can be used to prevent fraying.
Output Connections (See Page 7 for more details on output connectors)
Power Connections
Installing bus bars on output studs (when full-size module is used):
Output
n The right stud is Positive and the left stud is the Return.
Output Return
n Remove the top nut and place ring lug over output stud.
n Do not remove the lower nut next to the PCB.
SxJ2
n Replace and tighten the nut to a torque of 10 inch pounds.
Do Not over-tighten nuts.
Installing power connectors with 18-pin molex connectors*
(when half size module used):
n SxJ1-1, SxJ1-10, SxJ1-11 are Positive for output #1, while pins SxJ1-2,
SxJ1-3, SxJ1-12 are the Return. SxJ1-7, S3J1-8 and SxJ1-16 are Positive for
output #2, while pins SxJ1-9, SxJ1-17 and SxJ1-18 are the Return. [a]
Locking Key
18
9
17 16 15 14 13
- + -S T +S
+ + T -S +S
8 7 6 5 4
12 11 10
- + +
- - +
3 2 1
SxJ1 Dual Output connector
M1 Output
M2 Output
Pin 1 Identifier
n Use Molex mating receptacle #39-01-2180 with #44476-3112 terminals.
n Attach 18-24 AWG stranded wire using Molex tool #11-01-0199.
n Current PFC Minis have 18-pin SxJ1 connectors.
* Outputs with current molex connectors are limited to 9 A/pin (27 A per output).
[a] Where x refers to the slot number.
Note: Effective January 2001, all PFC Mini units have 18-pin connectors (Molex PN#39-01-2180) vs. the
14-pin (Molex PN# 39-01-2140). If you already have a 14-pin design in, remove the harness assembly
from the 14-pin connector housing and insert the harness connector pins into the 18-pin connector
housing. For further information, contact an Applications Engineer.
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Page 7
Sense Connections
Note: PFC Mini units built after 12/2000 have been equipped with a feature called Autosense. If no
Sense connections are made, the PFC Mini will automatically operate in Local Sense mode. If Remote
Sense connections are made, the PFC Mini will operate in a Remote Sense mode.
For units built before 12/2000 (units without Autosense), Sense connections must
ALWAYS be made. Not connecting Sense Lines to their respective outputs can cause
failure to the unit.
Sense connections on output connections with studs
n PFC Minis are currently shipped with Autosense installed. Those without the Autosense were shipped with Local Sense installed. (See note on Page 14)
Remove jumpers for
Remote Sense
n If Remote Sense is desired, remove jumpers MBJ1 and J3, located behind the Sense connector.
n Connector pin SxJ2-2 is the +Sense and SxJ2-3 is the -Sense.
n Use Molex mating receptacle #50-57-9403 with #16-02-0103 terminals.
n Attach terminals to 20-22 AWG stranded twisted pair wire using Molex tool #11-01-0208.
n Attach opposite end of sense lines to point where regulation is desired.
n Verify that sense lines are not cross-connected.
Sense connections on output connection with Molex connectors
n PFC Minis are currently shipped with Autosense installed. Those without the Autosense were shipped with Local Sense installed. (See note on Page 14)
n If Remote Sense is desired, remove jumpers on MBJ1 and J3, located on
either side of the output connector.
Remove jumpers for
Remote Sense on
Output # 2
n Connector pin SxJ1-4 is the +Sense and SxJ1-5 is the -Sense for output #1. SxJ1-13 is the +Sense and SxJ1-15 is the -Sense for output #2.
Connector J2
n Use Molex mating receptacle #39-01-2180 with #39-00-0039 terminals.
Remove jumpers for
Remote Sense on
Output # 1
n Attach 18-24 AWG stranded twisted pair wire using Molex tool #11-01-0197.
Trim Connections
Trim connections on outputs with studs:
Trim Connector
1
2
3
SxJ2
Pin
Trim Pin Access
+Sense
-Sense
n Use Molex mating receptacle #50-57-9403 with #16-02-0103 terminals.
n Attach 20-22 AWG stranded wire using Molex tool #11-01-0208.
Trim connections on outputs with Molex connectors:
Locking Key
18 17 16 15 14 13
- - + -S T +S
- + + T -S +S
9 8 7 6 5 4
n SxJ2-1 provides Trim access.
12 11 10
- + +
- - +
3 2 1
SxJ1 Dual Output connector
M1 Output
M2 Output
Pin 1 Identifier
n SxJ1-14 provides Trim access for output #1, and SxJ1-6 provides Trim access for output #2.
n Use Molex mating receptacle #39-01-21 with #39-00-0039 terminals.
n Attach 18-24 AWG stranded wire using Molex tool #11-01-0197.
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J3 INTERFACE CONNECTION
MATING HDWR:
HOUSING: AMP P/N 205204-4
TERMINALS: AMP P/N 66506-9
SCREW LOCK: AMP P/N 205980-4
CRIMP TOOL: AMP 58448-3
J3 INTERFACE PIN OUT
J3-1
J3-2
J3-3
J3-4
E/D-1
E/D-2
E/D-3
SIGNAL GROUND
Interface Connections
n J3-1 to 3 are Enable/Disable for cards 1-3, respectively.
n J3-4 is Signal Ground, J3-5 is +5V, J3-6 is AC Power OK, and J3-7 is General Shutdown.
n Use mating receptacle AMP P/N 205204-4 with terminals AMP P/N 66506-9.
n Attach terminals to 18-24 AWG stranded wire.
J3-5 VCC +5V 300mA
J3-6 ACOK AC POWER OK
J3-7 GSD GENERAL SHUTDOWN
J3-8 SPARE
J3-9 SPARE
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Page 9
.487
12.36
.920
23.37
43.69 ±0.51
UG:115
L1
L2/N
2.210
1.600
vicorpower.com 133.81
AIR FLOW
56.13
40.64
5.268
3
4
A COMPLETE SET OF MATING CONNECTORS CAN
BE PURCHASED FROMWESTCOR BY SPECIFYING
CONNECTOR KIT P/N: 19-130047
REF DESIGNATION LEGEND
MB = MOTHER BOARD
S1 = (SLOT 1) DAUGHTERBOARD MODULES E/D 1.
S2 = (SLOT 2) DAUGHTERBOARD MODULES E/D 2.
S3 = (SLOT 3) DAUGHTERBOARD MODULES E/D 3.
WITH OPTIONAL BUSBAR.
2
1. INTERPRET DRAWING PER ANSI Y14.5-1994.
NOTES: UNLESS OTHERWISE SPECIFIED
MBJ1 INPUT CONNECTIONS
MBJ1-1 EARTH GROUND
MBJ1-2 L2 / NEUTRAL
MBJ1-3 L1
DO NOT
OPERATE
WITHOUT
EARTH GND
NOTE: SET SCREW MAX
TORQUE = 4.4 IN. LBS.
115-230 VAC 10A
47 TO 500 Hz
300VDC
---
CLAMPING SCREWS
14 AWG WIRE
J3 INTERFACE CONNECTION
MATING HDWR: (AMP P/N: OR EQUIVALENT)
HOUSING: AMP P/N: 205204-4
TERMINALS: AMP P/N: 66506-9
SCREW LOCK: AMP P/N: 205980-4
CRIMP TOOL: AMP 58448-3
J3 INTERFACE PIN OUT
5 1
J3-1
E/D-1
9 6
J3-2
E/D-2
J3-3
E/D-3
J3-4
SIGNAL GROUND
J3-5
VCC +5V 300mA
J3-6
ACOK AC POWER OK
J3-7
GSD GENERAL SHUTDOWN
J3-8
SPARE
J3-9
SPARE
1.72 ±.02
1.00
4.00
25.40
101.60
8.00
203.20
12.03
305.56
317.29 ±0.51
308.86
12.49 ±.02
12.16
2
203.20
SCALE: 1:2
BOTTOM VIEW
8.00
.47
50.80
11.94
152.40
2
S1JX
CSB-01
CSB-02
3
SEE PAGE 21 AND 22 FOR MORE INFORMATION ON
CURRENT SHARE BOARDS.
WITH VI-200/VI-J00 MODULES
WITH MAXI/MINI MODULES
3
S2JX
NOTE: FOR INCREASED OUTPUT POWER,
CURRENT SHARE BOARDS ARE AVAILABLE.
CUSTOMER MOUNTING HOLES:
4X #8-32 X .156 or M4 X 4mm MAX LG.
FROM OUTSIDE OF POWER SUPPLY
50.80
8.64 ±0.51
All Westcor power supplies can now be configured online
using VSPOC, the online configurator tool available on vicorpower.com
2.00
CUSTOMER MOUNTING HOLES:
2X #8-32 X .156 or M4 X 4mm MAX LG.
FROM OUTSIDE OF POWER SUPPLY
2.00
6.00
.34 ±.02
S3JX
4
4
SEE PAGE 11 FOR DETAILED OUTPUT
CONNECTION INFORMATION
3
4
PFC Mini Mechanical Drawing
Applications Engineering: 800 927.9474
Page 10
Output Connectors for PFC Mini
A. OUTPUT STUDS - SINGLE OUTPUT (when populated with full-size modules)
-V OUT
10-32 OUTPUT STUDS
SxJ2 REMOTE SENSE/TRIM
PIN CONNECTOR
+V OUT
3
2
1
- SENSE
+ SENSE
TRIM
MATING CONNECTOR:
HOUSING: MOLEX P/N 50-57-9403
TERMINALS: MOLEX P/N 16-02-0103
USE CRIMP TOOL: MOLEX P/N 11-01-0208
B. MOLEX CONNECTOR - SINGLE OR DUAL OUTPUT - (when populated with half-size modules)
18-pin Housing
9 18
8 17
7 16
6 15
5 14
4 13
3 12
2 11
1 10
PIN
1
2
3
4
5
6
7
8
9
SxJ1 (18 PIN OUTPUT, REMOTE SENSE
AND TRIM PIN CONNECTOR)
DESCRIPTION
PIN DESCRIPTION
+V OUT M1
10 +V OUT M1
-V OUT M1
11 +V OUT M1
-V OUT M1
12 -V OUT M1
+ SENSE M1
13 + SENSE M2
- SENSE M1
14 TRIM M1
TRIM M2
15 - SENSE M2
+V OUT M2
16 +V OUT M2
+V OUT M2
17 - V OUT M2
-V OUT M2
18 - V OUT M2
MATING CONNECTOR:
18 PIN HOUSING: MOLEX (39-01-2180)
TERMINAL FEM CRIMP 18-24 AWG: MOLEX (39-00-0039)
USE CRIMP TOOL: MOLEX (11-01-0197)
The Molex connectors are limited to 9A/pin (27A per output.)
M1 Output
M2 Output
C. MOLEX CONNECTOR - SINGLE OR DUAL OUTPUT SLOT (14-pin Housing - PFC Minis built prior to 1/2001)
7 14
6 13
5 12
4 11
3 10
2
1
9
8
PIN
1
2
3
4
5
6
7
SxJ1 (14 PIN OUTPUT, REMOTE SENSE
AND TRIM PIN CONNECTOR)
DESCRIPTION
PIN DESCRIPTION
+ SENSE M1
8
- SENSE M1
+ OUTPUT M1
9
+OUTPUT M1
- OUTPUT M1
10 - OUTPUT M1
TRIM M1
11 TRIM M2
+ OUTPUT M2
12 + OUTPUT M2
- OUTPUT M2
13 - OUTPUT M2
+ SENSE M2
14 - SENSE M2
UG:115
MATING CONNECTOR:
14 PIN HOUSING: MOLEX (39-01-2140)
TERMINAL FEM CRIMP 18-24 AWG: MOLEX (39-00-0039)
USE CRIMP TOOL: MOLEX (11-01-0197)
vicorpower.com Applications Engineering: 800 927.9474
Page 11
PFC Mini Connector Kit (19-130047) Listing
(Avaialble for purchase)
Item
Qty
1
3
10
2
**
Description
Vendor #1
Part #
HOUSING 3 POS .100 CTR W/LATCH
MOLEX
50-57-9403
TERM FEM CRIMP 22-24AWG SEL GOLD
MOLEX
16-02-0103
CRIMP TOOL FOR ITEM 2
MOLEX
11-01-0208
205204-4
3
1
HOUSING FEMALE D-SUB 09 PIN
AMP
3
10
TERM MALE CRIMP 22-24 AWG TIN
AMP
66506-9
3
1
SCREW LOCK MALE (1 PAIR)
AMP
205980-4
CRIMP TOOL FOR ITEM 3
AMP
58448-3
**
4
3
HOUSING 18 POS .165 CTR W/LATCH
MOLEX
39-01-2180
5
60
TERM FEM CRIMP 18-24 AWG SEL GOLD
MOLEX
39-00-0039
CRIMP TOOL FOR ITEM 5
MOLEX
11-01-0197
TERM FEM CRIMP 16 AWG SEL GOLD
MOLEX
45750-3211
CRIMP TOOL FOR ITEM 6
MOLEX
11-01-0199
**
6
60
**
** ITEMS FOR REFERENCE ONLY (NOT INCLUDED IN KIT)
Interface Connections
Chassis Input Power Terminals (MBJ1)
Input AC power is applied to terminal block MBJ1 using a pressure screw terminal
that accepts a maximum wire size of 14 AWG. The insulation should be stripped 0.35 inches and the maximum torque applied to the screws should not exceed 4.4 in. lbs.
The connector manufacturer recommends the wires not be tinned. A ferrule (Phoenix P/N 32-00-58-0, provided in optional connector kit) can be used to prevent fraying.
MBJ1-1 (GND) is Earth Ground for safety; MBJ1-2 (L2) and MBJ1-3 (L1) are the other
"hot" connections.
A fault clearing device, such as a fuse or circuit breaker, with a maximum 15 A rating at
the power supply input is required for safety agency compliance. It should be sized to
handle the start-up inrush current of 8.5 A pk at 115 Vac and 17 A pk at 230 Vac.
Figure 2.
Input Power Terminal MBJ1
NOTE: SET SCREW MAX
TORQUE = 4.4 IN. LBS.
115-230 VAC 10A
47 TO 500 Hz
300VDC
---
L1
L2/N
DO NOT
OPERATE
WITHOUT
EARTH GND
INPUT CONNECTIONS
MBJ1-1 EARTH GROUND
MSJ1-2 L2-NEUTRAL
MBJ1-3 L1
Output Power Connections
There are two types of output power terminals available in the PFC Mini. Outputs from
full-sized converters are terminated in two 10-32 plated steel bolts. The positive polarity
of the output is the right bolt when viewed from the output end. Outputs from halfsized converters terminate in a Molex connector. Note: The Molex connectors are limited to
9 A/pin (27 A/output). Each power output is isolated, so outputs of positive or negative polarity can be
configured through proper selection of the output reference terminal.
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Page 12
In order to minimize parasitic cable inductance and reduce EMI, the output power
cables should be routed in close proximity to one another, and large current loops
should be avoided. To avoid excessive voltage drop, do not undersize power cables,
especially for high-current outputs. Excessive cable inductance coupled with large
capacitive loading can introduce instability in switching power supplies. This problem
can be avoided with proper system design. Consult Vicor’s Applications Engineering
Department for assistance with applications that use long cable lengths and excessive
load capacitance.
Note: Effective January 2001, PFC Minis using VI-J00 modules on a dualboard (dual output) now require
an 18-pin connector (Molex PN# 39-01-2180) vs. a 14-pin (Molex PN# 39-01-2140), making them the
same as dualboards with Mini converters. If you already have a 14-pin design in, the change to the
18-pin should not affect your design in. Remove the harness assembly from the 14-pin connector
housing and insert the harness connector pins into the 18-pin connector housing. Contact Field
Applications for further information.
Figure 3.
Power Connections for
Single Output
Output
Output Return
SxJ2
Figure 4.
Power Connections for
Dual Output
14 13 12 11 10
7
6
5
3
9
8
2
1
18 17 16 15
9
8
7
6
14 13 12 11 10
5
4
3
2
1
14 PIN DUAL MODULE OUTPUT CONNECTIONS
18 Pin DUAL MINI AND JR. MODULE OUTPUT CONNECTIONS
PIN DESCRIPTION
PIN DESCRIPTION
PIN DESCRIPTION
SxJ1-1 +SENSE M1
SxJ1-2. +OUTPUT M1
SxJ1-3. -OUTPUT M1
SxJ1-4. TRIM M1
SxJ1-5. +OUTPUT M2
SxJ1-6. -OUTPUT M2
SxJ1-7. +SENSE M2
4
UG:115
SxJ1-8. -SENSE M1
SxJ1-9. +OUTPUT M1
SxJ1-10. -OUTPUT M1
SxJ1-11. TRIM M2
SxJ1-12. +OUTPUT M2
SxJ1-13. -OUTPUT M2
SxJ1-14. -SENSE M2
vicorpower.com SxJ1-1. +OUTPUT M1
SxJ1-2. -OUTPUT M1
SxJ1-3. -OUTPUT M1
SxJ1-4.+SENSE M1
SxJ1-5.-SENSE M1
SxJ1-6. TRIM M2
SxJ1-7. +OUTPUT M2
SxJ1-8. +OUTPUT M2
SxJ1-9. -OUTPUT M2
PIN DESCRIPTION
SxJ1-10. +OUTPUT M1
SxJ1-11. +OUTPUT M1
SxJ1-12. -OUTPUT M1
SxJ1-13. +SENSE M2
SxJ1-14. TRIM M1
SxJ1-15. -SENSE M2
SxJ1-16. +OUTPUT M2
SxJ1-17. -OUTPUT M2
SxJ1-18. -OUTPUT M2
Applications Engineering: 800 927.9474
Page 13
+Sense/ –Sense (SxJ2/SxJ1)
Current PFC Mini units are shipped with Autosense installed. If the unit does not have
Autosense, sense selection is very important. In units without Autosense, the Sense
lines for the outputs are shipped from the factory with Local Sense installed. If Remote
Sense is desired the Local Sense jumpers can be removed for individual outputs. If the
Local Sense jumpers are removed, the Sense lines must be connected for Remote Sense.
Leaving the Sense lines open will prevent proper output regulation and can result
in damage to the unit.
When Local Sense is used, the power supply will regulate the output at the output
terminals. The voltage appearing at the load may drop slightly due to voltage drop in the
power cables. If it is necessary to compensate for voltage drop along the output power
cables, the output can be trimmed up or configured for Remote Sense. Use stranded
twisted pair 20-22 AWG wire for the Remote Sense lines. Remote Sense can compensate
for a voltage drop of up to 0.5 V, or 0.25 V on each leg.
Installing Remote Sense requires the Local Sense jumpers to be removed. On single
output cards, the Local Sense jumpers are located behind the Sense connector on MBJ1
and J3. To remove the jumpers, make certain the power to the supply is off, and pull
them off the connectors MBJ1 and J3. On dual output cards, the local Sense jumpers
are on either side of the output connector at MBJ1 and J3. The jumpers at MBJ1 are for
output #1, and the jumpers at J3 are for output #2.
The Sense connector for a single output board is a 3-pin connector providing the +Sense
connection on SxJ2-2 and the -Sense connection on SxJ2-3. The Sense connector for
a dual output board is an 18-pin connector that also provides the output and trim
connections. +Sense and -Sense for the first output are located on SxJ1-4 and SxJ1-5,
respectively. +Sense and -Sense for the second output are located on SxJ1-13 and SxJ1-15, respectively.
Figure 5.
Removing Local Sense Jumpers
TOP VIEW
Dual Output Sense Connections
Single Output Sense Connections
Remove jumpers for
Remove jumpers for
Remote Sense on
Remote Sense on
Output # 1
Output # 2
Connector SxJ1
Local Sense jumpers
located behind
the Sense Connector.
END VIEW
14 Pin Dual Output Sense Connectors
Local Sense
jumpers are to
the left of the output
connector for
Output # 2.
14 13 12 11 10
7
6
5
4
3
9
8
2
1
18 Pin Dual Output Connectors
Local Sense
jumpers are to
the left of the
output connector
for Output # 2
Local Sense
jumpers are to
the left of the
output connector for
Output # 1
Local Sense
jumpers are to
the left of the
output connector
for Output # 1
18 17 16 15
9
8
7
6
14 13 12 11 10
5
4
3
2
1
Single Output Sense Connections
Local Sense jumpers
located behind
the Sense Connector.
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Page 14
Figure 6.
Remote Sense
+Out
+Sense
Load
-Sense
-Out
Use 20-22 AWG Twisted Pair Wires
Figure 7.
External Trim
+P +Out
Use 20-22 AWG
Twisted Pair Wires (Remote Sense)
R1
SxJ2-2 +Sense
To Error
Amplifier
+ RTH R5
R8
R2
SxJ2-1
R6
R3
SxJ2-3 -Sense
V1
V Ref
-
R7
Load
+
V2
-
R4
-P -Out
Use 20-22 AWG Twisted Pair Wires
Table 1.
Module Internal Reference
Voltages and Thevenin
Resistances
Output Module
Vref
RTH
VI-200/VI-J00 ≥3.3 V
2.5 V
10.0 kΩ
VI-200/VI-J00 <3.3 V
0.97 V
3.88 kΩ
Maxi, Mini Micro series (Predefined)
1.23 V
1 kΩ
Maxi, Mini Micro series (User Defined)
1.23 V
Consult Factory
External Trim (SxJ2/SxJ1)
The Trim pin at SxJ2 is referenced to the -Sense pin and can be used for external control
of the output voltage. For dual output cards, the Trim pins are available at SxJ1-14 and
SxJ1-6 for outputs 1 and 2, respectively. A 10% increase to the trim pin voltage will
result in a 10% increase in output voltage. Reducing the trim pin voltage by 10% will
result in a 10% decrease in output voltage.
Note: Converters are sometimes pre-trimmed at the factory if a nonstandard output voltage is
requested. If a nonstandard voltage is requested, the resistor calculations will differ from those that
follow. Consult Vicor Applications Engineering for assistance.
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Page 15
Example:
±10% Trim adjust on a 12 V nominal output.
Figure 7 shows a typical variable trim circuit. Using a 10 k trimpot (R7), the resistor
values for R6 and R8 can be calculated as follows:
V1 = Vref + 10% = 2.75 V
IR5 = (2.75 V - Vref)/RTH = (2.75 V - 2.5 V)/10 kΩ = 25 µA Given: RTH = 10 kΩ (see Table 1)
Given: Vref = 2.5 V (see Table 1)
Setting the bottom limit:
VR6 = 2.5 V - 10% = 2.25 V
And since IR5 = IR6 = 25 µA,
R6 = VR6/IR6= 2.25 V/25 µA = 90 kΩ
V2 = V1 + VR6 = 2.75 V + 2.25 V = 5 V
IR7 = V2/R7 = 5 V/10 kΩ = 500 µA
IR8 = IR7 + IR6 = 525 µA
VR8 = (Vnom +10%) - V2 = 13.2 V - 5 V = 8.2 V
R8 = VR8/IR8 = 8.2 V/525 µA = 15.62 kΩ
Given: Vnom = 12 V
CONSULT APPLICATIONS ENGINEERING WHEN TRIMMING OUTPUTS BELOW 5 V.
Signal Ground (J3-4)
Signal Ground on J3-4 is an isolated secondary ground reference for all J3 interfacing
signals. This is not the same as Earth Ground on input power connector MBJ1.
Enable/Disable (J3-1 to J3-3)
The Enable/Disable control pins allow outputs to be sequenced either on or off. J3-1
through J3-3 are the control pins for output cards 1 through 3, respectively. For 2-output
cards, both outputs are enabled or disabled with a single control. The Enable/Disable
pins should be pulled low to less than 0.7 V with respect to Signal Ground to disable
the outputs. They will source 4 mA maximum. These pins should be open circuited or
allowed to exceed 4.5 V when enabled. Do not apply more than 5 V to these inputs.
Figure 8.
Enable/Disable and
General Shutdown
J3
PFC Mini
A TTL "1" applied to the base of the transistor turns
output OFF. Pin 1 (or Pin 7 for GSD) is pulled Low
with respect to Signal Ground.
5
Vcc
Enable/Disable Output 1
1
Enable/Disable Control
General Shutdown
TTL "1" (OFF)
TTL "0" (ON)
7
1
0
Signal Ground
4
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Page 16
Enable/Disable Control of Maxi, Mini, Micro Series Module Arrays
When using the Enable/Disable function on an output that consists of two or more
Maxi/Mini series modules, it is necessary to connect the Enable/Disable pins of the
corresponding module locations together such that both modules are commanded to
turn ON or OFF simultaneously.
Example: S1 and S2 has been configured as a single output parallel array (see Figure 9)
In order to disable the 48 V output, Enable/Disable 1 and 2 should be shorted together as
shown in Figure 9. With Enable/Disable 1 and 2 connected together, a single switch can
then be used to remotely enable and disable the output.
Note: For single output Maxi/Mini series power supply configurations, the simplest method of remotely
enabling and disabling the output is to use the General Shutdown (GSD) function.
Figure 9.
Enable/Disable Control of Maxi,
Mini, Micro Series Module
Arrays
J3
1
2
3
4
5
6
7
8
9
V375A5C400A
1
2
3
S3
V375A48C600A
1
2
3
S2
J1
V373A48C600A
1
2
3
Load
S1
General Shutdown/GSD (J3-7)
The GSD control pin on J3-7 allows simultaneous shutdown of all outputs. This pin
must be pulled down to less than 0.7 V, and will source 4 mA maximum to shut down all
outputs. The GSD pin should be open circuited or allowed to exceed 4.5 V when not in
use, or when the outputs are to be enabled. Do not apply more than 5 V to this input at
any time. Normal open circuit voltage is 1.5 to 3 V with respect to Signal Ground.
AC OK (J3-6)
AC OK is an active high TTL compatible signal and provides a status indication of the
AC input power. It is on pin J3-6 and is capable of sinking 16 mA maximum. This signal
switches to a TTL "1" when the high voltage bus exceeds low-line condition during turnon. Upon loss of input power, the bus voltage will drop, causing the AC OK signal to go
low. A minimum of 3 ms hold-up time is provided for a 1,200 W load following the loss
of the AC OK signal.
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Page 17
Figure 10.
AC OK
J3
+5V
10K
2.49K
Pin 6
Bus
Monitor
PN2222
AC Power OK
Pin 4
Signal Ground
Auxiliary VCC +5 V/0.3 A (J3-5)
The VCC on J3-5 is an auxiliary 5 V regulated power source. It is +5 Vdc +/–5% with
respect to Signal Ground and can supply 300 mA maximum. It is short-circuit-proof, but
if shorted, all outputs will shut down through the Enable/Disable circuitry.
Figure 11.
Auxiliary Vcc
78M05
+5V/300 mA
J3
J3-5 Auxiliary Vcc
0.1 µF
J3-4 Signal Ground
Single Output Power Supplies (Arrays)
Vicor’s standard configuration for single output power supplies is to set the left module
(as seen from looking at the power supply output) as the controlling module of the
array.
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Page 18
Minor Changes for PFC Mini Shipped October 2005 Onwards
As part of our philosophy of continuous improvement for the PFC Mini, Vicor made
a number of changes to the unit. Usually such actions have no impact on form, fit, or
function of the supplies. In this instance, the improvements required minor changes
in the external appearance of the supply. The fans have been moved 0.62" and are now
centered. The D-Sub logic connector has also been rotated 90 degrees. Please see the
following photos for a visual comparison. No other external dimensions, mounting
locations, or performance characteristics have been changed.
PFC Mini - Without Change
PFC Mini - With Change
5.268
1.600
1.72 ±.02
.920
.487
133.81
40.64
2.210 56.13
43.69 ±0.51
23.37
12.36
How to Identify When Your Unit was Manufactured
Serial numbers for Vicor products are determined as follows:
XXXXXXXMMYY
XXXXXXX = Factory assigned
MM = Month of manufacture
Y = Last digit of year of manufacture
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Page 19
PFC Mini Output Power vs. Input Voltage
PFC Mini
Output Power vs. AC Input Voltage
1600
1400
Output Power
1200
1000
800
638
600
400
200
0
85
105
125
145
165
185
200 205
225
245
265
AC Input Voltage
PFC Mini
Output Power vs. DC Input Voltage
1600
1400
Output Power
1200
1000
800
750
600
400
200
0
100
120
140
160
180
200
220
240
260
280
300
320
340
360
380
DC Input Voltage
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Page 20
Specifications
General
Number of Outputs
1–6
Efficiency
>80%
cURus – UL 60950-1, CSA 60950-1;
cTÜVus – EN 60950-1, UL 60950-1, CSA 60950-1
Safety Approvals
CE Mark – Low Voltage Directive, 73/23/EEC amended by 93/68/EEC
Note: certain MI chassis may not carry all safety approvals
Maximum Output Power+
>800 W at 115 Vac;
(+Not to exceed an input
1,500 W at 230 Vac
current of 10 A)
Note: Only PFC Minis populated with 12 V Maxi modules are limited to 500 W max. per slot.
With 12 V Mini modules, it is limited to 250 W.
Input
Input
85 – 264 Vac, 47 – 500Hz; 100 – 380 Vdc
VI-200/VI-J00:± 0.2% max.10% to full load; ± 0.5% max.
Line/Load Regulation
0 to 10% load
Line Regulation
Maxi/Mini:± 0.20% max. to 0.3% max LL to HL, Full Load
Inrush Current
8.5A pk at 115 Vac; 17A pk at 230 Vac
Ride Through Time
20 ms at 1,200 W load
VI-200/VI-J00 Ss:
Maxi, Mini
(some configs. may meet Class B):
Conducted EMI
EN55022 Class B
EN55022 Class A
Mil-STD 461 will require external filter
Power Factor
0.99 at 115 Vac: 0.95 at 230 Vac
Voltage Fluctuations and Flicker
EN61000-3-3
ESD Susceptibility
EN61000-4-2, Level 3, Performance Criteria A
RF Radiated Immunity, 10v/m
EN61000-4-3, Performance Criteria A
Transient Burst Immunity
EN 61000-4-4, Level 3, Performance Criteria B
Surge Immunity
EN 61000-4-5 Installation Class 3, Performance Criteria B
RF Conducted Immunity
EN61000-4-6, Limit Class 3 Performance Criteria A
Voltage Dips and Interrupts
EN61000-4-11
Primary to Chassis GND = 2,121 Vdc
Dielectric Withstand
Primary to Secondary = 4,242 Vdc
Secondary to Chassis GND = 750 Vdc
MI Chassis Overvoltage and Transients
Compliant to Mil-STD 704 and 1399
Note: See Vicor module specifications. A preload may be necessary for modules trimmed down below 90% of
normal output voltage.
Environmental
Storage Temperature
-40°C to +85°C
Operating Temperature
Full Power
-20°C to +45°C [b] (-40°C to +45°C optional with MI chassis)
Half Power
-20°C to +65°C (-40°C to +65°C optional with MI chassis)
Specific temperature data on all module configurations can be obtained by contacting
Applications Engineering.
[b] 45°C is the maximum operating temperature. If one is using a Maxi/Mini module less than 24 V output and
more than 500 Watts, the maximum operating temperature is 40°C.
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Page 21
Environmental (Cont.)
Mil-STD 810
Shock and Vibration
Derate 2.6% total output power for each 1,000 ft to a maximum
(MI Chassis) Altitude
operating altitude of 15,000 ft. Non-operating storage maximum
altitude is 40 K. 75% maximum load
Humidity
0 to 95% non condensing
Product Weight
5.5 lbs. (2,5 kg)
Dimensions
1.72" H (43,6 mm) x 6.0" W (152,4 mm) x 12.2" L (309,9 mm)
2 years limited warranty.
Warranty [c]
See vicorpower.com for complete warranty statement.
[b] 45°C
is the maximum operating temperature. If one is using a Maxi/Mini module less than 24 V output and
more
than 500 Watts, the maximum operating temperature is 40°C.
[c] Opening,
repairing or modifying the unit will void the warranty. If you have any problem with the power supply,
please contact Customer Service at 1-800-735-6200. If the unit needs to be returned for inspection/analysis, an
RMA number will be issued. All units must have a RMA number prior to return.
Ouput
VI-200/VI-J00 Modules
Parameter
Setpoint
MIN
Accuracy [d]
TYP
MAX
UNITS
Notes
1
%
of Vnom
Load/line Regulation
± 0.2
%
10% to full load
Load/line Regulation
± 0.5
%
0.02
%/°C
0.5
Temperature Regulation
0.01
No load to 10% load
Over rated temp.
Long Term Drift
Output Ripple & Noise:
≤10 Vout
100
mV
20 MHz bandwidth
>10 Vout
1.0
% Vout
20 MHz bandwidth
50-110
% Vout
± 10% on 10 – 15 Vout
Voltage Trim Range
VI-200/VI-J00 series Slots
Total Remote Sense
Compensation
OVP Set Point [e]
Current Limit
Short Circuit Current
0.5
Volts
115
125
105
115
20 (105 [f])
Overtemperature Limiting
Autosense.
See Pages 8 & 14
135
% Vout
Recycle Power
125
% of I max
Auto Recovery
130
%
Not available on VI-J00
[d] For
special, adjustable voltages and 48 Vdc outputs, maximum setpoint accuracy is 2% of Vnom.
Note: See individual module data sheets for specific module specifications.
[e] 131%
Nominal for Booster Modules. No OVP for VI-J00
[f] VI-J00
modules only
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Page 22
Maxi, Mini, Micro Series Modules (Maxi and Mini Modules Only)
Parameter
MIN
Setpoint Accuracy [d]
Load Regulation
TYP
MAX
UNITS
±0.5
±1
% of Vnom
See module design guide
% of Vnom
for exact specifications
±0.1
Temperature Regulation
0.002
0.005
%/°C
Notes
-20°C to 100°C
Long Term Drift
Output Ripple & Noise:
≤10 V out
100
mV
20 MHz bandwidth
>10 V out
1.0
% Vout
20 MHz bandwidth
10-110
% Vout
Preload may be required
Voltage Trim Range
Maxi/Mini Slots
Total Remote Sense
Compensation
OVP Set Point
0.5
112
Current Limit
Overtemperature Limiting
Volts
115
100
115
Autosense.
See Pages 8 & 14
135
% Vout
Recycle Power
135
% of I max
Auto Recovery
MMM OTL is non-latching
[d] For
special, adjustable voltages and 48 Vdc outputs, maximum setpoint accuracy is 2% of Vnom.
Note: See individual module data sheets for specific module specifications.
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Page 23
Current Share Boards - Optional Feature
"Current Sharing" also known as Load Sharing, is the ability to divide the output
current evenly across all active power supplies. This greatly reduces stresses on each
power supply and allows them to run cooler, resulting in higher reliability. Standard
"Current Sharing" techniques typically utilize shunt resistors or Hall-Effect devices to
measure the current from each power supply. Power shunt resistors continually
dissipate power and require cooling especially when dealing with high output currents
of >100 Amps. Hall-Effect devices measure magnetic fields generated by current flowing
through a conductor and, although they dissipate no power, they tend to be large and expensive.
First developed by Vicor engineering for paralleling MegaPAC supplies, the Box-to-Box
Current Share Board or CSB allows two or more Vicor power supplies to current
share by utilizing the inherent voltage drop produced in the negative output return
cable. This eliminates the need for additional shunt resistors or expensive Hall-Effect
devices and provides a simple 5 wire connection method to achieve a +/-1 mV accuracy
between the negative output power rails. This accuracy translates to a 1% current
sharing if there is a total of 100 mV conductional voltage drop in the negative return path.
Constructed as a current source to drive the Trim pin of a Vicor module, the design uses
an accurate comparator circuit to monitor the power returns. In addition, the circuit
is unidirectional and can only trim an output voltage up. The benefit is that only the
supply that is supporting less current is adjusted up. This action balances the currents to
the load by matching the output voltages of the supplies. In the case of one supply
failing, the circuit will attempt to trim the failed supply only. This will leave the
remaining functional supply alone to provide power to the load at its nominal voltage.
Thus the circuit also offers simple redundancy. In addition, because CSB functions as
a current source, the Trim outputs (T1 and T2) of the CSB can be placed in parallel to
create a summing node. This allows current sharing between more than two supplies by
paralleling the T2 output of one CSB circuit with the T1 output of the next CSB.
Please note: The CSB is not intended for use in Hot-Swap applications.
Figure 12.
CSB Interconnect Expample
D*
+OUT
Power Supply 1
24V@1kW
+VOUT
+S
TRIM
Yellow
-S
-OUT
Brown
D*
+OUT
Power Supply 2
24V@1kW
+S
TRIM
-S
T1
-V1
T2
-V2
Power
Red
CSB02
-VOUT
White
Black
-OUT
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Page 24
Current Share Boards - Optional Feature (Cont.)
Requirements:
1.For proper operation, the power supplies being paralleled should be enabled at the same time.
2.-Out conductors must be of equal length and wire gauge. Separate -Out conductors must be used from each supply to the load, or the use of a "Y" connection to a
common point must be used as shown in Figure 1. Each leg of the "Y" must have a minimum of a few millivolts of drop in order for proper operation. 50 mV to 100 mV of drop will provide from 5% to 1% accuracy.
3.-V1 and -V2 for all box-to-box circuits must be connected directly at the negative output power studs or terminals to achieve accurate current sharing.
4.D* can be added if redundancy is needed. If redundancy is not required, D* can be replaced with direct wire connections.
5.When using D*, the Power input should be connected on the cathode side of the paralleling diodes as shown in Figure 12.
6.Terminate Sense Leads either locally or remotely as shown in Figure 1.
7.For paralleling more than two supplies consult Applications engineering
for assistance.
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Page 25
Current Share Boards - Optional Feature (Cont.)
0.13" (3.3mm) Dia Non
Plated thru hole 4
places
1.74"
(44.2mm)
2
1
4
3
6
5
Molex CT43045F surface mountable
connector. .390" height above board.
1.500"
(38.1mm)
J1 Pinout
Pin
1
2
3
4
5
6
Description
P ow e r
T1
-V1
T2
-V2
No Connection
0.12"
(3.0mm)
0.12"
(3.0mm)
0.900"
(22.9mm)
1.14"
(29.0mm)
Figure 13. Mechanical Drawing
24.0" +/- 1.0"
Red, 22 AWG
P1
Po w e r
Yellow, 22 AWG
T1
Brown, 22 AWG
-V1
White, 22 AWG
T2
Black, 22 AWG
-V2
Figure 14. Cable Drawing
Specifications:
1.Power: 2 – 50 Vdc at 5 mA maximum.
2.Accuracy: +/-1 mV between -Vout connections.
3.Output current when not trimming up: +/-1 uA (VI-200/J00), +/-5 µA (Maxi, Mini, Micro series).
4.Use four non-plated through holes with standoffs for mounting.
5.CSB01 MUST be used for current sharing VI-200/VI-J00 series converters (VI-200/J00).
6.CSB02 MUST be used for current sharing Maxi, Mini, Micro series converters (Maxi, Mini and Micros).
PLEASE NOTE: THE CSB IS NOT INTENDED FOR HOT-SWAP APPLICATIONS.
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Page 26
Low Leakage Version (Available upon request)
If Low Leakage is required, Vicor has a PFC Mini model variant (must be requested).
This model enables the user to meet various additional specifications. The advantage
of the Low Leakage PFC Mini power supply is in multiple power supply systems that
have one AC input. This option will lower the input leakage current for these products
to 500 μA or less (may vary if Maxi, Mini, Micro series modules are used. Contact
Applications Engineering for more details.) An additional external EMI filter is typically
required.
How Low Leakage is Obtained
Low Leakage is obtained with the removal of the "Y" capacitors from within the EMI
filter of the PFC Mini [a]. This reduces the leakage current from the AC input to AC
ground (chassis) to below 500 μA. At the same time, since the "Y" capacitors are a vital
component of the EMI filter, without them, the EMI will go up. When this happens, the
unit may no longer meet Vicor’s published specifications for conducted EMI. In order to
reduce the EMI to within an acceptable limit, an additional external EMI filter may be
required. All safety agency certifications for the PFC Mini remains intact[g]. Contact Applications Engineering for more information.
[g] Please note that the PFC Mini (including Low Leakage version) is NOT UL2601 compliant.
Low Output Ripple
If output ripple of 10 mV p-p or 0.15% (whichever is greater) is required, a PFC Mini
with RAM modules can be configured if the maximum output power per output
does not exceed 100 W. If this configuration is required, please contact: [email protected] to have it configured since this option is currently not available using the online configuration tool (VSPOC).
If there are space restrictions, an external RAM/µRAM can also be used.
Office Environment Fan
A PFC Mini using an office environment fan is available. Please note that the maximum
output power for this version is 1,200 W. The maximum output power per slot is limited
to 500 W.
Molex Connector Limitation
Please note that those PFC Mini configurations that use Molex connectors are limited
to 9 A/pin (27 A per output). This is a Molex connector limitation, NOT a module power
limitation. Vicor’s online configuration tool (VSPOC) will not provide a PFC Mini
solution for requirements that exceed the 27 A limitation.
UG:115
vicorpower.com Applications Engineering: 800 927.9474
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NOTES:
UG:115
vicorpower.com Applications Engineering: 800 927.9474
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For Vicor Global Office Locations, please go to: www.vicorpower.com/contact-us
or call 800-735-6200.
For more information about this or other Vicor products, or for assistance with component-based power
system design, contact the Vicor office nearest you. Vicor's comprehensive line of power solutions includes
modular, high-density DC-DC converters and accessory components, configurable power supplies, and custom
power systems. Vicor designs and builds configurable power supplies incorporating Vicor’s high density DC-DC
converters and accessory components.
This product line includes:
LoPAC FAMILY:
• PFC MicroS
• PFC Micro
• PFC Mini
MegaPAC FAMILY:
• PFC MegaPAC
• 4kW MegaPAC
• 4kW MegaPAC-EL (Low Noise)
• PFC MegaPAC (High Power)
• PFC MegaPAC (Low Noise/High Power)
• PFC MegaPAC-EL (Low Noise)
• Mini MegaPAC
• Autoranging MegaPAC
• ConverterPACs
OTHERS:
• FlatPAC-EN
• PFC FrontEnd
• MicroPAC
• Conduction Cooled MicroPAC
Rugged COTS versions (MI) are available for the PFC Micro, PFC MicroS, PFC Mini, PFC MegaPAC,
Standard MicroPAC and Conduction Cooled MicroPAC.
INFORMATION FURNISHED BY VICOR IS BELIEVED TO BE ACCURATE AND RELIABLE. HOWEVER, NO RESPONSIBILITY IS ASSUMED BY VICOR FOR ITS USE. NO LICENSE IS GRANTED BY IMPLICATION OR OTHERWISE
UNDER ANY PATENT OR PATENT RIGHTS OF VICOR. VICOR COMPONENTS ARE NOT DESIGNED TO BE USED
IN APPLICATIONS, SUCH AS LIFE SUPPORT SYSTEMS, WHEREIN A FAILURE OR MALFUNCTION COULD RESULT
IN INJURY OR DEATH. ALL SALES ARE SUBJECT TO VICOR'S TERMS AND CONDITIONS OF SALE, WHICH ARE
AVAILABLE UPON REQUEST.
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE. THE LATEST DATA IS AVAILABLE ON THE
VICOR WEBSITE AT VICORPOWER.COM
The Power Behind Performance
Rev 1.2
03/2015 P/N 07-130245-01A
vicorpower.com
Applications Engineering: 800 927.9474
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