STEVAL-IHM013V1
Demonstration board on low-end vacuum cleaner based on the ST7FLiteUS5 and BTB12
Data Brief
Features
AC motor speed regulation system High current protection Full bag checking Start/stop button Potentiometer (speed adjustment) LED checking Sense resistor (current sensing)
Description
This demonstration board, in terms of hardware and software, is ready to use in the development of universal motor driving based on phase angle control. This board implements a traditional design solution for a universal motor control circuit with a microcontroller as a driver. The STEVAL-IHM013V1 has been customized for vacuum cleaner applications, however it can be easily adapted for most home appliance or industrial applications based on phase angle control without speed closed loop control. The electronic driver with TRIAC and microcontroller is cost effective and easy for designers to implement. Analog solutions are being progressively replaced by microcontroller designs even in low-cost applications. The main reason of this evolution is primarily due to the possibility to of implementing a soft-start function which allows the equipment to fulfill IEC 61000-33 standard on inrush currents. Their advantages also include flexibility, using less external components and easy adaptation by simple software modifications.
STEVAL-IHM013V1
June 2008
Rev 1
1/4
www.st.com 4
For further information contact your local STMicroelectronics sales office.
Block diagram
STEVAL-IHM013V1
1
Block diagram
Figure 1.
N
CON2
1 2
Control block
+5 V
F1 10A/275V
Capacitive power supply
1 3 5 7 9
ICCDATA
J7
2 4 6 8 10
ICC clock
D1
5.6V
+5 V
3.3K R11
RESET
MAIN 230V
R9 47 / 1W
C5
D2
+
C4 470uF/16V
CLKIN
J5
J2
ICC CON
1 2
L
Flame proof resistor
J3
330NF/275AC
D1N4148
+5 V
D3
2.2k R1
CON2
LED
J1
R13 0.05/5W
1 2
MOTOR
CON2
External +5V
1 2
+5 V
C1 100nF
+5 V
U1
ST7FLITEUS5
ICCDATA
Q1
2
BTB12-600BW
R2
3
R6 100K
R8
1 Vdd
Vss 8
POT 10K
20K
47
Q2 BC847C
CLKIN 2.7k R5
2
PA5 (HS)/AIN4/CLKIN PA0(HS)/ATPWM/ICCDATA
PA4(HS)/AIN3
1
7
C2 100NF
3
4
PA1(HS)/AIN1/ICCCLK
PA3/ RESET
6
10K
R15
CLKIN
RESET
PA2(HS)/AIN2
5
ICC clock
SW PUSHBUTTON
R3 330K / 0.5W
C3 100PF
J8
1 2
C6 10PF
C7 100PF
SW 1
FULL BAG SENSOR INPUT
AM00613v1
2/4
STEVAL-IHM013V1
Revision history
2
Revision history
Table 1.
Date 04-Jun-2008
Document revision history
Revision 1 Initial release. Changes
3/4
STEVAL-IHM013V1
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