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AssigneeCrane Electronics, Inc.
InventorsCuon Lam, Hach Nguyen, Khoa Nguyen, Peter Odell, Sovann Song
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A circuit for providing dynamic output current sharing using average current mode control for active-reset and self-driven synchronous rectification with pre-bias startup and redundancy capabilities for power converters. The circuit communicates a secondary side feedback signal to a primary side via a bidirectional magnetic communicator that also provides a secondary voltage supply. Pre-bias startup is achieved by detection of the output current direction and controlling the gate signals of synchronous rectifiers. The circuit permits dynamic current sharing via a single-control signal and automatic master converter selection and promotion.
An average current mode control (ACMC) controller for a power converter, the power converter comprising a power transformer having a primary winding electrically coupleable to an input voltage node and a secondary winding electrically coupleable to an output voltage node, a primary control circuit electrically coupled to the primary winding, a secondary control circuit electrically coupled to the secondary winding, the secondary control circuit comprising first and second synchronous rectifying elements comprising respective first and second control nodes, the average current mode control (ACMC) controller comprising:
An active-clamp forward converter, comprising:
Dependencies are inferred from the claim text.