1 2 3 4 1 2 C2 4u7 400 V + C3 4u7 400 V 8 7 DR AIN2 DR AIN1 R2 3 Neutral + L1 1m H C4 nc LIM MAINS 230V~ 50Hz C1 47n 275 V~ X2 D2 1N400 7 U1 VIPer16L 1n nc C5 R3 GND VDD FB TIM2_CH 3/(HS)PA 3 7 RV1 300 V D1 1N400 7 Line C22 1n 10 OSCIN/PA 1 OSCOUT/PA 2 4 nc 1 2 Gate D6 P6KE 400 CA R26 75 C6 10 u 25 V C11 10n 90k L2 470u H R4 33k R5 D5 STT H1R06 C10 100 n VDD C7 100 n PB 4/I2C_SCL I2C_SDA/PB 5 PC7(HS)/SP I_MISO PC6(HS)/SP I_MOSI PC5(HS)/SP I_SCK PC4(HS)/AIN2/TIM1_ CH 4/CLK_CC O PC3(HS)/TIM1_CH 3 PD3(HS)/AIN4/TIM2_CH 2/ADC _ETR PD2(HS)/AIN3 PD1(HS)/SW IM A2 + C12 1u BEEP /UART1_CK/PD4(HS) UART1_TX/AIN5/PD5(HS) UART1_RX/AIN6/PD6(HS) VDD A1 NRST 1 2 R1 4 7 2W R25 220 k R24 220 k ZVS 5 6 1 2 3 U3 STM8S103 F2P6 8 J1 CON2 Line NR ST SW IM VDD Line VS S Debugger J3 CON4 Motor J2 CON2 TR1 T1235 T-8T VCAP 4 D3 STT H1R06 -12V D4 STT H1R06 V-12 2 R30 820 C8 100 u 25V VIN U2 L7905 CP VOUT R32 820 R31 820 R29 820 R28 820 R27 820 P1 50K 12 11 SW IM C23 10n VDD 17 16 15 14 13 20 19 18 + NRST 3 VDD C9 10u 16V 0V DL5 LED VSS VDD -5V DL6 LED + VDD GND 1 TP2 TP1 VDD DL4 LED VDD DL3 LED VDD DL2 LED VDD DL1 LED VDD STEVAL-IHM029V2 Schematic diagram GSPG140 1151535SG 9 COMP 5