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. STEVAL-IHM013V1 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. June 2008 Rev 1 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com 4 Block diagram 1 STEVAL-IHM013V1 Block diagram Figure 1. N Control block +5 V F1 ICCDATA Capacitive power supply J7 10A/275V CON2 D1 1 2 + J5 C5 R9 C4 470uF/16V D2 ICC clock 2 4 6 8 10 1 3 5 7 9 +5 V 5.6V MAIN 230V 3.3K RESET R11 CLKIN J2 ICC CON 1 2 47 / 1W L 330NF/275AC Flame proof resistor D1N4148 2.2k LED J1 MOTOR +5 V External +5V 1 2 1 2 CON2 R1 J3 R13 0.05/5W D3 +5 V CON2 C1 +5 V U1 Q1 2 100nF R6 100K BTB12-600BW R8 1 R2 1 3 Q2 47 2 CLKIN 2.7k R5 R15 Vdd Vss PA5 (HS)/AIN4/CLKIN PA0(HS)/ATPWM/ICCDATA 3 PA4(HS)/AIN3 4 PA3/ RESET BC847C 10K ICCDATA ST7FLITEUS5 PA2(HS)/AIN2 20K C2 100NF 6 5 ICC clock SW PUSHBUTTON CLKIN C6 10PF 10K 8 7 PA1(HS)/AIN1/ICCCLK RESET POT J8 R3 C7 100PF 330K / 0.5W C3 100PF 1 2 SW 1 FULL BAG SENSOR INPUT AM00613v1 2/4 STEVAL-IHM013V1 2 Revision history Revision history Table 1. Document revision history Date Revision 04-Jun-2008 1 Changes Initial release. 3/4 STEVAL-IHM013V1 Please Read Carefully: Information in this document is provided solely in connection with ST products. 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