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1. An apparatus comprising:
an active clamp circuit, the active clamp circuit comprising a clamp capacitance, a diode, and a clamp switch, the clamp capacitance and the clamp switch being coupled in a circuit path, and the diode being coupled across the clamp switch; a power converter coupled to the active clamp circuit, the power converter comprising a storage inductance coupled in a circuit path with a converter switch; and a controller, operatively coupled to the clamp switch and the converter switch, to close the clamp switch during a non-conduction phase of the converter switch in a converter switching cycle to cause the clamp capacitance to be discharged into the storage inductance exclusively through the clamp switch, and to subsequently open the clamp switch during the non-conduction phase of the converter switch to cause the clamp capacitance to be charged from the storage inductance exclusively through the diode during a non-conduction phase of the converter switch in a next converter switching cycle. |
