DI-17, TOP242YN, 17W, PC Standby Reference Design

DI-17, Reference Design for TOP242YN, 17W, PC Standby Power Supply. Input UV is set at 195VDC using a single 3.9MO resistor (R1).On increasing input voltage, the supply is disabled until 195VDC is reached (this threshold is typically the lowest operating DC input voltage for a PC main power supply with a doubler input configuration)