HI,
I am working on a push pull converter wich should operate from a 48V dc bus.
I intend to use UC3856 currentmode pwm or similar.
There is an absolute need for external syncronisation, which can be accomplished
by grounding the CS pin and applying external sync signal. But how do I implement slope compensation
in this situation, where the CS ramp signal is tied to ground?
regards
Geert de Vries
Duran Audio