Patent ID: 6385059
Filing Date: 2002-05-07
Classification: H02M

Abstract:
Control circuitry for controlling the delivery of power from a source voltage to a load in a transformer coupled power converter, the control circuitry comprising:a power switch having an input, an output, and an activation gate, the power switch, when cycled ON and OFF, defining a pulse of power at the load; a pulse generator coupled to the power switch, the pulse generator producing switching pulses for cycling the power switch; a pulse rate controller responsive to an error signal and coupled between the pulse generator and the power switch, wherein the pulse rate controller regulates an output voltage at the load by controlling the rate of switching pulses that cycle the power switch over time; and error signal generation circuitry coupled to the power switch output for generating the error signal based at least in part on a compensation signal corresponding to an expected loss between the source and the load for each power switch cycle.