A Standard Digital Control Module for Two-Transistor Pulsewidth Modulated Converters

Two-transistor pulsewidth modulated converters do not find widespread application since they are usually expensive, bulky, and difficult to design. To resolve these difficulties, a circuit is presented in which the pulsewidth control mechanism is separate from the power-handling stages. This permits the use of a standard integrated digital control module, which simplifies the overall design of two-transistor pulsewidth modulated converters. The module is small and inexpensive, and results in efficient, high-performance converters.