PWM and Synchronous Rectifier Controller ASICs

A report describes two radiation-hard application-specific integrated circuits (ASICs) that constitute a mixed-signal chip set that performs all the control functions for a power-converter module (PCM) in a spacecraft power-supply system. One of these ASICs serves mainly as a pulse-width modulation (PWM) controller for the circuitry on the primary side of a transformer in the module; the other ASIC is mainly a synchronous rectifier controller (SRC) for the circuitry on the secondary side of the transformer.