1 2 3 4 5 6 7 8 A A i5V R8 10K C10 1uF R10 510R U5 2 J2 i5V 3 2 1 i5V 4 3 R7 330R IGND Gravity 3P Isolation U2 Vo+ Vo- VIN GND 1 2 IB0505LS-1W +5V MCU J1 OUT 3 +5V 2 GND 1 Gravity 3P Raw GND B +5V 3 TL431A IGND 2.495V 1 B SEN R3 10K NRST C6 100nF C9 IGND 1uF IGND C7 C4 4.7uF 100nF 1 2 3 4 5 6 7 8 9 10 C3 4.7uF U1 STM8S103F3P6 PD4 PD5 PD6 NRST PA1 PA2 Vss Vcap Vdd PA3 20 19 18 17 16 15 14 13 12 11 PD3 PD2 PD1 PC7 PC6 PC5 PC4 PC3 PB4 PB5 C8 100nF GND R1 10K 8 7 6 5 R2 10K U4 SWIM i5V R25 PWM OUT 1 2 3 4 NC A C NC VCC EN Vout GND 6N137S(TA) 2K C1 4.7uF C2 100nF +5V +5V 3 GND +5V 1 2 R4 10K GND 4 IGND 8 i5V U3A TP1562A R5 10K R6 100K R11 5 C5 100K 1uF GND i5V C11 1uF 6 U3B TP1562A R9 100R 7 GND GND C T1 T2 T3 T4 NRST SWIM i5V IGND T5 T6 T7 T8 C SEN MCU +5V GND FD1 FD2 FD3 FD4 D D Title: Gravity: Analog Isolation Module Drawn: Page: 1 2 3 4 5 6 7 lg.gang-CD 1 of 1 Revision: Date: V1.0 2017/6/16 SKU: DFR0504 Size: A3 Time: 17:08:40 8