Patent ID: 9013896
Filing Date: 2015-04-21
Classification: H02M

Abstract:
1. A method of supplying direct-current (DC) power, the method comprising: receiving a first electrical signal at a gating circuit from a secondary winding of a transformer, wherein the gating circuit comprises: receiving a second electrical signal synchronized with the first electrical signal, gating the third gated transistor using the third control signal, gating the first gated transistor using the first control signal so that the first electrical signal is gated to produce a gated electrical signal with a duty cycle less than the duty cycle of the first electrical signal; filtering the gated electrical signal output from the first gated transistor to generate a DC output voltage; determining a difference between the generated DC output voltage and a reference DC voltage; and controlling the duty cycle of the gated electrical signal by controlling the gating of the first electrical signal based on the difference.