Title
Engineering Prototype Report (EPR-00015)
3W, Universal Input, Single Output, Isolated Converter
with TNY254 (EP-15)
Recipients
Application
Battery Charger
Author
S. L.
Date
11-November -2000
Abstract
This document presents the specification, schematic & BOM, transformer calculation, test data, wave forms
and EMI scan for a low cost, isolated converter for a battery charging application.
Power Integrations, Inc.
5245 Hellyer Avenue, San Jose, CA 95138 USA
Tel: +1 408 414 9200 Fax: +1 408 414 9201
http://www.powerint.com
Engineering Prototype Report
Contents
1.0.Introduction ...................................................................................................................3
2.0 Power Supply Requirements Specification ...................................................................3
3.0 Schematic .....................................................................................................................4
4.0 Circuit Description.........................................................................................................5
5.0 Layout ...........................................................................................................................6
6.0 Bill of Materials..............................................................................................................7
7.0 Transformer – T1 ..........................................................................................................8
7.1 Transformer drawing................................................................................................. 8
7.2 Transformer Spreadsheet .................................................................................... 9-10
8.0 Performance Data.......................................................................................................11
8.1 Efficiency................................................................................................................. 11
8.2 Regulation @ 25C ambient..................................................................................... 12
8.3 Vout vs Iout ............................................................................................................. 13
8.4 Temperature ........................................................................................................... 14
8.5 Waveforms......................................................................................................... 15-16
8.6 Transient response ................................................................................................. 16
8.7 Conducted EMI Scans ............................................................................................ 17
8.8 Surge Voltages .................................................................................................. 17-18
8.9 Acoustic noise ........................................................................................................ 20
Revisions ......................................................................................................................... 20
Reader’s Notes ........................................................................................................... 21-23
PI world- wide offices ........................................................................................................24
EPR-00015
Page 2 of 24
Engineering Prototype Report
1.0 Introduction
This document presents the specification, schematic & BOM, transformer design, test data, wave forms and
EMI scan for a low cost, isolated converter (EP15) for low current battery charging applications (long
charging time, NiCd). A typical application is illustrated in Figure 1.1.
The unit has low input voltage detection circuit, programmable for 110 or 220Vac operation.
When the line voltage drops below the threshold, the battery energizes the inverter and the lamp turns on.
When the line voltage exceeds the threshold, the battery is disconnected from the inverter, the lamp turns off
and the battery is recharged.
The EP15 output voltage can be reduced, while maintaining the same charging current (reduced power).
The EP15 is designed to meet the industry’s safety and EMI standards.
Current setting resistor
L
Relay(NC)
Power Supply EP15
Inverter
Battery
NEON LAMP
N
Figure 1.1. Battery charger block diagram.
2.0 Power Supply Requirements Specification
Description
Input
Operating Input Voltage
No load input power
Output
Output Voltage**
Output Ripple Voltage
Output Current ***
Power Output
Continuous Output Power
Power supply efficiency
Environmental
Temperature
Safety
Surge (differential, 2 ohm)
Surge (common mode, 12 ohm)
EMI-Conducted
Symbol
Min
Vin
85*
Typ
Max
Units
Comment
265
250
Vac
mW
200
50/60Hz
@ 230Vac
Green LED indicator
+/-6% Total
Peak to Peak
Vout
Vout ripple
Iout
12
0.25
Vdc
mV
A
Pout
h
3
75
W
%
Tamb
Line-Line
Line-Earth
0
25
1
2
50
°C
kV
kV
@ Full Load
@ Full Load
IEC950/UL1950
IEC/UL 1000-4-5 Class 3
IEC/UL 1000-4-5 Class 3
CISPR22B
*Under voltage lockout threshold set/programmable with a voltage divider
(100Vac for universal input, 175Vac for single voltage input 230Vac).
**Can be adjusted by changing the output Zener diode VR1.
***The maximum short circuit current is 0.94A
EPR-00015
Page 3 of 24
Engineering Prototype Report
3.0 Schematic
3
4.7K
R1
N
C1
8.2 ohm, 2W, Fusible
+
C2
4.7uF, 400V 4.7uF, 400V
J1- 3
D3
+
U1
TNY254P
9
C6
180uF, 16V
1N4007
Q1
R7
39K
C7
180uF, 16V
R9*
6.8K
TP2
4
1
EN
BP
J2- 1
U2
RTN
PC817A
R8
470
S
D4
+
C5
2.2nF, Y1 Safety
5
+12VDC
LED1*
C4
2
85-265V AC * *
2
L2 Bead(2uH)
J2- 2
+
3
L J1- 1
R5
470K
R4
1.5K, 1/2W
R6
510K
C3
68pF, 1kV D
10
4
R2
D1 D2
D5 UF4003
1
1
1
L1
1mH
T1 EE16
3.7 mH
VR1
2N3906 0.1uF
1N5241B
TP1
Title
*OPTIONAL
* * Minimum voltage determined by the undervoltage
lockout circuit(R5, R6 and R7 values).
EPR-00015
Size
B
Date:
12Vdc, 3W Batter y Charger
Document Number
Rev
EP15
Tuesday , Januar y 16, 2001
Page 4 of 24
Sheet
F
1
of
1
Engineering Prototype Report
4.0 Circuit Description
This circuit was designed for emergency lighting battery charging applications.
The unit stops charging when the mains voltage drops below ~175Vac (in a 230Vac system), or
~100Vac (in a 120Vac or universal system). The voltage threshold is set/programmable with the
voltage divider R5, R6 and R7. Two ¼ W resistors (R5, R6) are connected in series for voltage
rating and board layout flexibility.
For 100Vac threshold R5=470K, R6=510K and R7=39K.
For 175Vac threshold R5=820K, R6=910K and R7=39K.
The threshold accuracy is determined by the resistor value tolerance and is temperature sensitive
as the Vbe of Q1.
The EMI standard is met with a low cost transformer (only shield winding, no need for flux band)
and low cost input filter (no common mode choke). The R4, C3 snubber reduces the drain dV/dt
of U1 (slows the switching speed), reducing the EMI.
In this application, the AC input is rectified and filtered by D1-D4, C1 and C2 to create a high
voltage DC bus which is connected to T1. Inductor L1 forms a pi-filter in conjunction with C1 and
C2. The resistor R2 damps resonance in inductor L1. The operating mode of TNY254 allows the
unit to meet worldwide conducted EMI standards using a simple pi-filter in combination with a
small value Y1-capacitor C5 and a proper PCB layout. R4 and C3 form a snubber circuit that
limits the turn-off voltage spike to a safe level on the TNY254 DRAIN pin.
The secondary winding is rectified and filtered by D5, C6 with additional filtering provided by L2,
C7 to give the 12Vdc output. The output voltage is determined by the sum of the voltage drops
across the opto-coupler U2 and the Zener diode VR1 at the bias point. The optocoupler voltage
drop is minimum (<1V) at the current required for the TinySwitch control pin and varies with the
optocoupler part number. With a 11V 5% zener the output voltage could be as low as 7% off the
nominal 12Vdc. For better nominal voltage accuracy a 2% zener should be used.
Resistor R8 sets the bias current for VR1 and improves the optocoupler U2 response time. If
LED1 is not used, R8 value can be decreased such that VR1 pre-loading maintains the no-load
output regulation.
The primary-to-secondary isolation is assured by using parts/materials (opto/transformer
insulation) with the correct level of isolation and creepage distances (opto slot/transformer
bobbin).
The 12Vdc monitoring light emitting diode (LED1) and R9 are optional, and have been included in
this circuit for troubleshooting convenience. R9 dissipates approximately 20mW and helps the noload output regulation.
Test points TP1 (U1 SOURCE) and TP2 (U1 DRAIN) are provided for ease of monitoring Vds.
EPR-00015
Page 5 of 24
Engineering Prototype Report
5.0 Layout
TP1 (U1-S)
TP2 (U1-D)
Fig.5.1. Board size (L57mm x W27mm x H20mm)
-
+12Vdc
RTN
For the drain-to-source voltage waveforms connect the high voltage probe tip to TP2 and the
probe ground to test point TP1.
For switching current waveforms replace jumper TP2 with a wire loop and use a Tektronix
A6302 current probe and AM503 current probe amplifier (with TM501 power module) or
equivalent.
EPR-00015
Page 6 of 24
Engineering Prototype Report
6.0 Bill of Materials
Item Qty.
1
2
2
3
4
5
1
1
1
2
6
4
7
8
1
1
Ref.
C1
C2
C3
C4
C5
C6
C7
D1
D2
D3
D4
D5
J1
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
J2
LED1
L1
L2
Q1
R1
R2
R4
R5
R6
R7
R8
R9
T1
U2
U1
VR1
Description
4.7uF, 400V
4.7uF, 400V
68pF, 1kV
0.1uF/50V
2.2nF, Y1 Safety, 5.7mm
180uF, 16V
180uF, 16V
1A, 600V/1000V
Part number
475 CKH400M
Manufacturer
Illinois Cap
ECC-D3A680JGE
RPE121Z5U104M50V
440LD22
EEU-FC1C181
Panasonic
Murata
Cera-mite
Panasonic
1N4007
Generic
1A, 200V, 50nsec
UF4003 (UF1003)
Header (0.156" spacing,
26-48-1035
3pos.)
Header (0.156" spacing, 2pos.)
low current, GRN
LG3369
1 mH, 0.15A
47HY102B
2uH, Bead,D3.5xL12,
LBC035138-B
200MHz (PNP, TO92)
2N3906
8.2 ohm, 5%, Fusible
253-4 8R2 (F1W8D2)
4.7K, 1/8W
1.5K, 1/2W
470K, 1/4W
510K, 1/4W
39K, 1/4W
470, 1/8W
6.8K, 1/4W
EE16, 3.7mH
CTX 14-15181-X2 48FLO
Optocoupler
PC817A
TinySwitch
TNY254P
Zener diode,11V, 5%
1N5241B
EPR-00015
GenSemi (Vishay)
Molex
Molex
Siemens
Tokin
TSC Electronics
Generic
Vitrohm (NTE)
Generic
Generic
Generic
Generic
Generic
Generic
Generic
Cooper
Sharp
Power Integrations
Generic
Page 7 of 24
Engineering Prototype Report
7.0 Transformer – T1
7.1 Transformer drawing
1
10
WDG#2
223T
#36 AWG
WDG #3
49T
28AWG Triple Insulated
9
2
3
WDG#1
53T
#36 AWG
1
Electrical Specifications:
Electrical Strength
Creepage
Primary Inductance
Resonant Frequency
Primary Leakage Inductance
Pins Side
60Hz 1 minute, from Pins 1-4 to Pins 5-10
Between Pins 1-4 and Pins 5-10
Pins 1,2, all other windings open, measured at 44KHz
Pins 1,2, all other windings open
Pins 1,2, with Pins 5-10 shorted, measured at 44KHz
3000 VAC
6 mm (Min.)
3676 mH, ±10%
500 KHz (Min.)
300 mH (Max.)
9
10
Secondary
1
Primary
2
3
1
Shield
Transformer Construction:
Shield
Primary
Secondary Winding
Final Assembly
Start at Pin 1. Wind 53 turns of item [3] in 1 layer. Finish on Pin 3.
Start at Pin 2. Wind 223 turns of item [3] in 4 layers. Finish on Pin 1.
Start at Pin 10. Wind 49 turns of item [4]. Finish on Pin 9.
Cores, Item [1], glued with a mixture of glass beads, item [5], 5% by weight, and
JAC133 epoxy, item [6]. (Contact Power Integrations for further details on
epoxy-glass bead construction method)
Materials:
Item
[1]
[2]
[3]
[4]
[5]
[6]
Description
2
Core: EE16, Nippon Ceramic NC-2H material or equiv. Gapped for ALG of 74 nH/T
Bobbin: 10 pin EE16, Ying Chin YC1607 or equiv.
Magnet Wire: #36 AWG Heavy Nyleze
Magnet Wire: #28 AWG Triple insulated
Glass beads, DIA=0.249mm available from MO-SCI Corp.
Telephone: +1 573 364 2338. Fax: +1 573 364 9589
Epoxy, JAC133 (or equivalent) available from Jungdo Chemical Company, Ltd. South
Korea Telephone: +82 2 856 0391 Fax: +82 2 867 1685
EPR-00015
Page 8 of 24
Engineering Prototype Report
7.2 Transformer Spreadsheet
The use of RC snubber across U1 limits the choice of operation to discontinuous only.
ACDC_TNY_Rev2.02_100899
Copyright Power Integrations Inc.
1999
ENTER APPLICATION VARIABLES
INPUT
VACMIN
d
Fully Discontinuous ('y') ?
n
ENTER Other Parameters
BP
Design Parameters
VMIN
VMAX
IP
DMAX
KDP
OUTPUT
85
VACMAX
fL
VO
PO
n
Z
tC
CIN
MODE OF OPERATION
Continuous ('c') or Discontinuous ('d') ?
ENTER TinySwitch Parameters
TinySwitch
ILIMITmin
ILIMITmax
fSmin
VDS
ENTER Output Diode Parameters
Output Diode
VR
ID
VD
k
INFO
UNIT
Volts
265
50
12
3
0.75
0.5
3
9.4
ACDC_TNY_REV2_02_100899.xls: TinySwitch
Continuous/Discontinuous Flyback Transformer
Design Spreadsheet
Customer
Minimum AC Input Voltage
Volts
Hertz
Volts
Watts
Maximum AC Input Voltage
AC Mains Frequency
Output Voltage
Output Power
Efficiency Estimate
Loss Allocation Factor
mSeconds Bridge Rectifier Conduction Time Estimate
uFarads
Input Filter Capacitor
Continuous mode operation or Discontinuous mode
operation?
Need Discontinuous mode operation guaranteed in all
conditions?
Mostly Disc.
Universal
4W
0.23
0.28
40000.00
40000
10
tny254
115/230Vac
5W
Amps
Amps
Hertz
Volts
Minimum current limit
Maximum current limit
Minimum Frequency
Voltage drop between Drain to Source
200
1
1
0.8
Volts
Amps
Volts
Diode Maximum Peak Repetitive Reverse Voltage
Diode Average Forward Current
Diode Forward Voltage drop
Diode Ipk to Irms factor (k=0.9 for Schottky, k=0.8 for PN
diode, k=0.2 TNY256)
2500
Gauss
Target Peak Flux Density at Maximum Current limit
92 Volts
375 Volts
0.21 Amps
0.419
1.00
1.00
VOR
VDRAIN
PIVS
LP
ENTER TRANSFORMER CORE/CONSTRUCTION
Core Type
ee16
Glass Bead Construction (y/n)
y
AE
LE
AL
BW
M
0
NP
NS
Glass_Bead_Diameter
59.34
513.77
94
3676
Volts
Volts
Volts
uHenries
Minimum DC Input Voltage
Maximum DC Input Voltage
Peak Primary current
Duty Cycle at minimum DC input Voltage
Reflected Output Voltage
Maximum Drain Voltage Estimate
Output Rectifier Peak Inverse Voltage
Minimum Primary Inductance
EE16
0.192
3.5
1140
8.5
cm^2
cm
nH/T^2
mm
mm
223 Turns
49 Turns
0.249 mm
EPR-00015
Glass Beads Construction Chosen
Core Effective Cross Sectional Area
Core Effective Path Length
Ungapped Core Effective Inductance
Bobbin Physical Winding Width
Safety Margin Width
Primary Winding Number of Turns
Number of Secondary Turns
Glass Bead Diameter (mm)
Page 9 of 24
Engineering Prototype Report
CURRENT WAVEFORM SHAPE PARAMETERS
IRMS
IR
ISP
ISRMS
IO
IRIPPLE
IOS
TRANSFORMER PARAMETERS
L
4
ALG
BM
BAC
OD
INS
DIA
AWG
CMA
AWGS
DIAS
0.08
0.21
0.94
0.42
0.25
0.33
1.02
Amps
Amps
Amps
Amps
Amps
Amps
Amps
Primary RMS Current
Primary Ripple Current
Maximum Peak Secondary Current
Secondary RMS current
Power Supply Output Current
Output Capacitor RMS Ripple Current
Estimated short circuit current
Number of Primary Layers
Effective Core Inductance - for Standard ALG values see
App Note AN-25
2405 Gauss
Operating Flux Density at Max Current Limit
1006 Gauss
AC Flux Density for Core Loss Curves (0.5 X Peak to
Peak)
0.15 mm
Maximum Primary Wire Diameter including insulation
0.03 mm
Taping between primary layers can be eliminated using
"Class 0" (Asia), "Grade 2"(Europe) or "Heavy Nyleze"
(USA) wire
0.12 mm
Bare conductor diameter
37 AWG
Primary Wire Gauge (for low capacitance AWG<= 36
recommended)
260 Cmils/Amp Primary Winding Current Capacity (CMA > 200)
29 AWG
Secondary Wire Gauge (Rounded up to next larger
standard AWG value)
0.29 mm
Secondary Minimum Bare Conductor Diameter
74 nH/T^2
EPR-00015
Page 10 of 24
Engineering Prototype Report
8.0 Performance Data
TEST EQUIPMENT
INPUT: VOLTECH (PM100) AC POWER ANALYSER.
Power Line Meter (EPD Inc.)
OUTPUT: KIKUSUI (PLZ153W) ELECTRONIC LOAD.
8.1 Efficiency
Efficiency vs Output Power
90
80
70
60
Vin=100Vac
Vin=265Vac
%
50
40
30
Pin=290mW @ 76Vac (no load, Vin <100Vac under voltage threshold, TNY-OFF)
Pin=490mW @ 137Vac (no load, Vin <175Vac under voltage threshold, TNY-OFF)
Pin=112mW @ 100Vac (no load, Vin within range)
Pin=250mW @ 265Vac (no load, Vin within range)
20
10
0
0.00
0.50
1.00
1.50
2.00
2.50
3.00
W
Figure 8.1.1 Efficiency vs output power @ 25C ambient.
Efficiency vs Input Voltage
90
85
80
%
75
70
65
60
55
50
105
125
145
165
185
205
225
245
265
Vac
Figure 8.2.1 Efficiency vs input voltage at full load @ 25C ambient.
EPR-00015
Page 11 of 24
Engineering Prototype Report
8.2 Regulation @ 25C ambient
Vout/Voutnom X100
105.0
100.0
95.0
90.0
105
125
145
165
185
205
225
245
265
Vin(Vac)
Figure 8.2.1 Line Regulation@full load, 25C ambient
Vout/Voutnom X100
105.0
100.0
Vin=100Vac
Vin=265Vac
95.0
90.0
0.00
0.05
0.10
0.15
0.20
0.25
Load(A)
Figure 8.2.2 Load regulation@25C ambient
EPR-00015
Page 12 of 24
Engineering Prototype Report
8.3 Vout vs Iout
Iout=0.25A(Typ)
14
12
Vout(Vdc)
10
8
6
4
2
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Load(A)
Figure 8.3.1 Vout vs Iout @ Vin=105Vac
Iout=0.25A(Typ)
14
12
Vout(Vdc)
10
Vin=265Vac
8
6
4
2
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Load(A)
Figure 8.3.2 Vout vs Iout @ Vin=265Vac
EPR-00015
Page 13 of 24
Engineering Prototype Report
8.4.Temperature
R4 snubber, 44C
Transformer, 41C
TNY254P, 38C.
Figure 8.4.1. Infrared scan at Vin=100Vac,
full load, 25C ambient, TNY254P side.
Transformer, 41C
Output Diode, 43C
Figure 8.4.2. Infrared scan at Vin=100Vac,
full load, 25C ambient, output diode side.
EPR-00015
Page 14 of 24
Engineering Prototype Report
8.5 Waveforms
.1A/div
.1A/div
100V/div
100V/div
Figure 8.5.1. Drain current and drain-to-source
voltage @ full load, Vin=100Vac, 60Hz.
Figure 8.5.2. Drain current and drain-to-source
voltage, shorted output, Vin=100Vac, 60Hz.
.1A/div
.1A/div
100V/div
100V/div
Figure 8.5.3. Drain current and drain-to-source
voltage @ full load, Vin=265Vac, 60Hz.
Figure 8.5.4. Drain current and drain-to-source
voltage, shorted output, Vin=265Vac, 60Hz.
EPR-00015
Page 15 of 24
Engineering Prototype Report
100mV/div
100mV/div
.2A/div
.2A/div
Figure 8.5.5. 120Hz output voltage ripple and
drain current @ full load, Vin=100Vac, 60Hz.
Figure 8.5.6. 44kHz output voltage ripple and
drain current @ full load, Vin=100Vac, 60Hz.
8.6 Transient response
200mV/div
.2A/div
Figure 8.6.1. Vout transient response, for
20%-80% load change, Vin=100Vac, 60Hz.
EPR-00015
Page 16 of 24
Engineering Prototype Report
8.7 Conducted EMI Scans
The attached plots show worst-case EMI performance for EP15 as compared to CISPR22B conducted
emissions limits.
Quasi-peak
Average
Figure 8.7.1. Vin=230Vac, full load, power supply floating.
Figure 8.7.2. Vin=230Vac, full load, power supply placed
on a plane (1.4mm insulation PCB) grounded via artificial hand.
The test set up, Figure 8.7.3., simulates the application, where the power supply unit (PSU)
is placed in a metal enclosure.
EPR-00015
Page 17 of 24
Engineering Prototype Report
LISN
Resistive Load
(Floating)
Power Cord
Artificial Hand
L
(P.S.U.)
IN
N
Insulation 1/16”
Copper
OUT
GND PLANE
Figure 8.7.3. Test set up.
For EMI and safety techniques refer to PI application note AN15 (Figure 6 shows a typical test set up).
EPR-00015
Page 18 of 24
Engineering Prototype Report
8.8 Surge Voltage
8.8.1 Differential = line-to-line (L- N), 2 ohm source impedance.
The unit exceeded the 1kV IEC/UL 1000-4-5 Class 3 requirement (meets Class 4, 2kV).
During the 2.5kV surge the unit continued to operate without damage.
8.8.2 Common mode = line-to-ground (L-GND, N-GND), 12 ohm source impedance
The unit exceeded the IEC/UL 1000-4-5 Class 3, 2kV and Class 4, 4kV requirements.
The maximum test voltage was 4kV. During the 4kV surges the unit continued to operate.
The unit was centered on the insulation side of a 6in x 4 in single sided copper clad board (1.4mm
insulation), to avoid surface or insulation breakdown during the voltage surges.
The voltage was applied between the input terminals of the unit (L or N) and the copper clad ground plane
(GND), in the following sequence:
L(+4kV) to GND, 5 times
L(-4kV) to GND, 5 times
N(+4kV) to GND, 5 times
N(-4kV) to GND, 5 times
Power Cord
Figure 8.8.1. Surge Test set up.
Resistive Load
(Floating)
L
(P.S.U.)
IN
OUT
N
Pwr. Ground
Insulation 1/16”
GND PLANE
Copper
EPR-00015
Page 19 of 24
Engineering Prototype Report
8.9 Acoustic noise
Audio Precision
FFT SPECTRUM ANALYSIS
10/17/00 02:08:12
+80
+70
+60
+50
+40
d
B
r
+30
+20
A
+10
+0
-10
-20
-30
0
2k
4k
6k
8k
10k
12k
14k
16k
18k
20k
22k
Hz
Figure 8.9.1 Worst case acoustic emission (Vin=120Vac, Iout=160mA)
Revisions
Author
Date
S.L.
5.18.00
8.18.00
9.12.00
10.6.00
10.9.00
10.26.00
11.14.00
01.31.01
Rev
Description
1
2
3
4
5
6
7
8
First Draft
Second Draft
Third Draft
Fourth Draft
Fifth Draft
Release
Changed title from EP10B to EP15
Changed EPR-15 to EPR-00015
EPR-00015
Page 20 of 24
Engineering Prototype Report
Notes
EPR-00015
Page 21 of 24
Engineering Prototype Report
Notes
EPR-00015
Page 22 of 24
Engineering Prototype Report
Notes
EPR-00015
Page 23 of 24
Engineering Prototype Report
For the latest updates, visit our website: www.powerint.com
Power Integrations reserves the right to make changes to its products at any time to improve reliability or
manufacturability. Power Integrations does not assume any liability arising from the use of any device or
circuit described herein, nor does it convey any license under its patent rights or the rights of others.
PI Logo and TOPSwitch are registered trademarks of Power Integrations, Inc.
©Copyright 2001, Power Integrations, Inc.
WORLD HEADQUARTERS
NORTH AMERICA - WEST
Power Integrations, Inc.
5245 Hellyer Avenue
San Jose, CA 95138 USA.
Main:
+1•408•414•9200
Customer Service:
Phone:
+1•408•414•9665
Fax:
+1•408•414•9765
NORTH AMERICA - EAST
& SOUTH AMERICA
Power Integrations, Inc.
Eastern Area Sales Office
1343 Canton Road, Suite C1
Marietta, GA 30066 USA
Phone:
+1•770•424•5152
Fax:
+1•770•424•6567
EUROPE & AFRICA
Power Integrations (Europe) Ltd.
Centennial Court
Easthampstead Road
Bracknell
Berkshire, RG12 1YQ
United Kingdom
Phone:
+44•1344•462•301
Fax:
+44•1344•311•732
TAIWAN
Power Integrations International
Holdings, Inc.
2F, #508
Chung-Hsiao E. Road
Sec. 5, Taipei 105, Taiwan
Phone:
+886•2•2727•1221
Fax:
+886•2•2727•1223
CHINA
Power Integrations International
Holdings, Inc.
Rm# 1705, Bao Hua Bldg.
1016 Hua Qiang Bei Lu
Shenzhen, Guangdong
518031 China
Phone:
+86•755•367•5143
Fax:
+86•755•377•9610
KOREA
Power Integrations International
Holdings, Inc.
Rm# 402, Handuk Building
649-4 Yeoksam-Dong,
Kangnam-Gu Seoul Korea
Phone:
+82•2•568•7520
Fax:
+82•2•568•7474
JAPAN
Power Integrations, K.K.
Keihin-Tatemono 1st Bldg.
Shin-Yokohama 2-12-20
Kohoku-ku,
Yokohama-shi, Kanagawa
Japan 222-0033
Phone:
+81•45•471•1021
Fax:
+81•45•471•3717
INDIA (Technical Support)
Innovatech
#1, 8th Main Road
Vasanthnagar
Bangalore, India 560052
Phone:
+91•80•226•6023
Fax:
+91•80•228•9727
APPLICATIONS HOTLINE
World Wide +1•408•414•9660
APPLICATIONS FAX
World Wide +1•408•414•9760
EPR-00015
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