data brief for further information contact your local stmicroelectronics sales office. june 2008 rev 1 1/4 4 STEVAL-IHM013V1 demonstration board on low-end vacuum cleaner based on the st7fliteus5 and btb12 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 mo tor 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 implement ing a soft-start function which allows the equipment to fulfill iec 61000-3- 3 standard on inrush currents. their advantages also in clude flexibility, using less external components and easy adaptation by simple software modifications. STEVAL-IHM013V1 www.st.com
block diagram STEVAL-IHM013V1 2/4 1 block diagram figure 1. control block reset icc clock iccdata reset clkin iccdata icc clock clkin clkin +5 v +5 v +5 v +5 v +5 v motor main 230v n l capacitive power supply external +5v full bag sensor input flame proof resistor 1 2 j8 j8 r1 2.2k r1 2.2k d2 d1n4148 d2 d1n4148 c3 100pf c3 100pf r6 100k r6 100k 1 2 3 4 5 6 7 8 9 10 j7 icc con j7 icc con 1 2 j1 j1 c5 330nf/275ac c5 330nf/275ac c1 100nf c1 100nf 1 2 j5 con2 j5 con2 r8 20k r8 20k r2 47 r2 47 1 2 j3 con2 j3 con2 2 1 3 q1 btb12-600bw q1 btb12-600bw c6 10pf c6 10pf d3 led d3 led r13 0.05/5w r13 0.05/5w r5 2.7k r5 2.7k r9 47 / 1w r9 47 / 1w r3 330k / 0.5w r3 330k / 0.5w r11 3.3k r11 3.3k c7 100pf c7 100pf c2 100nf c2 100nf q2 bc847c q2 bc847c 5.6v d1 5.6v d1 vss 8 vdd 1 pa4(hs)/ain3 3 pa5 (hs)/ain4/clkin 2 pa3/ reset 4 pa0(hs)/atpwm/iccdata 7 pa1(hs)/ain1/iccclk 6 pa2(hs)/ain2 5 u1 st7fliteus5 u1 st7fliteus5 sw1 sw pushbutton sw1 sw pushbutton pot 10k pot 10k 1 2 j2 con2 j2 con2 f1 10a/275v f1 10a/275v r15 10k r15 10k + c4 470uf/16v + c4 470uf/16v am00613v1
STEVAL-IHM013V1 revision history 3/4 2 revision history table 1. document revision history date revision changes 04-jun-2008 1 initial release.
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