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STEVAL-IHM041V1
Universal motor driver with speed control
based on the STM8 and Triac (US version)
Databrief
Features
■
Input voltage 120 V/60 Hz
■
Motor current: 7 A RMS
■
Phase control for universal motor drive
■
Open loop or closed loop speed regulation
■
Voltage and current sensing, for sensorless
operation (optional)
■
Debug outputs
■
AC tach, Hall sensor or opto-sensor for speed
feedback
■
RoHS compliant
Description
The STEVAL-IHM041V1 demonstration board is a
Triac-based phase angle control for universal
motor speed control using an STM8S103F3P6, 8bit microcontroller, to set the conduction angle of
the Triac.
The STEVAL-IHM041V1 demonstration board
may be operated in either open loop mode or in
closed loop speed control mode, with an AC tach,
Hall sensor or opto-sensor feedback.
The open loop mode may also be used as a lamp
dimmer.
The STEVAL-IHM041V1 demonstration board is
designed to operate from a 120 V/60 Hz mains,
but may be easily modified to operate on other
mains voltages by changing components in the
power supply and motor voltage sensing circuits.
Suggested component values for 230 V/50 Hz
mains voltages are shown in the relevant bill of
materials.
July 2012
This is information on a product in full production.
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J3
1
2
10V
Z1
J1
GND
2K
R31
5V
10K
R32
D2
2K
R29
R28
22K
D3
10K
R33
C7
47nF
R27
200K
2
3
4
3
2
1
-
+
5V
U3A
LM393
1
5V
4
swim
R30
10
R24
10K
DEBUG
GND
3
C4
1
470F 10V
2
in
NC
5
6
7
8
VFB
PB1
5V
GND
R19
47K
5V
L7805ACD13
NC
gnd gnd
gnd gnd
out
U2
POWER SUPPLY
1N4148
D1
ZC
DNI
DNI
PB2
DNI
LED4
C5
0.22uF
LED1
5V
1
GND
TP2
TX
PB3
PB2
PB1
PB3
DNI
9
8
7
6
5
4
3
2
1
PB2
PB1
2.2K
pc6
pc7
swim
ain3
ain4
pa3
Vdd
Vcap
Vss
pb5
pb4
pc3
ain2
oscout pc5
oscin
nrst
rx
tx
pd4
R12
1
2
J4
PB3
100 R21
R23
2.2K
R26
11
U4
2.2K
12
13
14
2.2K
8
+
4
-
5V
7
U1B
gate
swim
LED5
DNI
LED3
DNI
5V
ZC
VFB
5V
3
2
MOTOR
8
GND
+
4
1
U1A
5V
DNI
10
R4
VFB
GND
8
+
4
-
U3B
7
TX
GND
J2
2
1
COMMUNICATIONS
5
6
5V
VOLTAGE SENSING
R9 2K
R3 39K
R10 2K
39K
39K
5V
LED2 Red LED
5K R17
5
100
15 R22
16
17
18
19
R20
1K
20
R16
0.01
6
22K
R11
CURRENT SENSIN G
Q1
T1635T
R13
STM8S103F3P6
MOV
R25 10
GND
5V
C6
R18
2.2K
R14
100K
0.22uF
1
TP1
C3
220uF 10V
gate
C1
0.22uF
R6
R2 39K
R5
Schematic diagram
3
4
47
2.2uF 250V
R15
100K
100K
2
1
R1 1K
Figure 1.
TACHOM ETER INTERFACE
115VAC
P2
C2
R8
R7
P1
MOTOR CONNECTION
Schematic diagram
4
1
8
Schematic diagram
STEVAL-IHM041V1
AM12468v1
STEVAL-IHM041V1
2
Revision history
Revision history
Table 1.
Document revision history
Date
Revision
06-Jul-2012
1
Changes
Initial release.
Doc ID 023423 Rev 1
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STEVAL-IHM041V1
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