Circuit to improve capacitor hold-up time in a converter circuit

Abstract

A circuit for increasing the bulk capacitor hold-up time in a converter circuit wherein the converter circuit comprises an input circuit for providing a DC bus voltage and a DC bulk capacitor connected across the output of the input circuit, and further comprising an output DC to DC converter circuit having an input coupled to the DC bus and providing an output voltage, the circuit comprising a boost converter circuit having an input coupled across the DC bulk capacitor and having an output coupled to the input of the output DC to DC converter stage.

Dependencies are inferred from the claim text.