C6 22nF – X2 3 4 2 1 AC IN AC IN NTC 10 + F1 1.5 A FUSE CM 2X25mH - BR D6 18V R7 220 JMP R3 2M R1 2.2M R11 33k C14 22nF C10 10nF C12 22uF D7 1N4148 C2 33uF R12 39k R4 150k CONT BR D4 1N4148 C1 220pF. R13 47k C11 33nF FB C13 2.2nF OPTO KB817A GND DRAIN U1 VIPER37LE R5 3.3 CONTROL VDD R2 3.9M D5 BAT46RL D3 STTH1L06 D1 1.5KE220 TF C7 2.2nF OPTO3 KB817A C3 1200uF VR1 TS431 R6 330 D2 STPS30L40CT R10 100k C9 10nF R8 12k C4 1200uF L1 2.2uH R14 39k R9 120k GND C5 100uF 5V STEVAL-ISA121V1 Electrical schematic AM11341v1