VIPer38 Peak Power High-Voltage Converters STMicroelectronics VIPer38 Peak Power High-Voltage Converters smartly integrate an 800V rugged power MOSFET with PWM current-mode control. The power MOSFET allows a very high input VAC to be applied, just limited from its breakdown voltage. STMicroelectronics VIPer38 is capable of meeting more stringent energy-saving standards with its low consumption and ability to operate in burst mode under light load.