A D-C to D-C Converter Using Two Synchronized Complementary Converters

Efficiencies of over 90 percent have been obtained in this high-frequency non-dissipatively regulated d-c to d-c converter over a wide variation of temperature, load, and input supply voltages. Synchronization and phase-locking of two identical complementary converters are used to minimize many of the ripple and filtering problems which have been disadvantages of previous converters using similar techniques for voltage conversion and regulation. Operation of the converter is described in detail with emphasis being placed on the energy-storage and energy-transfer functions of the reactive elements and on the synchronization of the two converters.