Texas Instruments UC3827-1 Manuals

uc3827 is a push-pull pwm controller for cascaded buck and push-pull converters from ti. it can operate up to 500 khz and support up to 500v output voltage and 5a output current

The UC3827 family of controller devices provides an integrated control solution for cascaded buck and push-pull converters. These converters are known as current fed or voltage fed push-pull converters and are ideally suited for multiple output and/or high voltage output applications. In both current fed and voltage fed modes, the push-pull switches are driven at 50% nominal duty cycles and at one half the switching frequency of the buck stage. In the current fed mode, the two switches are driven with a specified over-lap period to prevent ringing and voltage stress on the devices.