RESONANT POWER MODULE AND METHOD OF OPERATION THEREOF

摘要

The module includes a resonant power circuit (10) for coupling to a load. First and second switching elements (CR1, CR2) are coupled to the resonant circuit for alternately supplying a flow of current. Trigger generator means (46) provided for supplying trigger signals to enable alternately the first and second switching elements. Control means (10) is coupled to the trigger generator for operating the power module both in a first mode in which the resonant circuit current is controlled by varying the repetition rate of the trigger signals, and in a second mode in which the trigger signal repetition rate is fixed and the resonant circuit current is controlled by varying the on/off duty cycle of the module.