ML4818 Datasheet - Fairchild

ML4818 Phase Modulation/Soft Switching Controller

The ML4818 is a complete phase modulation control IC suitable for full bridge soft switching converters. Unlike conventional PWM circuits, the phase modulation technique allows for zero-voltage switching transitions and square wave drive across the transformer. The IC modulates the phases of the two.

ML4818 Features

* Full bridge phase modulation zero voltage switching circuit with programmable ZV transition times

* Constant frequency operation to 500kHz

* Current mode operation

* Cycle-by-cycle current limiting with integrating fault detection and restart delay

* Precisi

ML4818_FairchildSemiconductor.pdf