VIPer0P Zero-Power Offline High Voltage Converters STMicroelectronics VIPer0P Zero-Power Offline High Voltage Converters integrate an 800V avalanche-rugged power MOSFET with PWM current-mode control. This STMicroelectronics power MOSFET with 800V breakdown voltage allows an extended input voltage range to be applied and reduces the size of the DRAIN snubber circuit.