The Double Converter: A Fully Regulated Two-Output DC-DC Converter

A new type of two-output dc-dc converter is proposed. With this ``double converter´´ two completely regulated outputs can be obtained using only one switching element and very often without an extra transformer. The operating principle is based on the discontinuous-conduction-mode operation of one output and the continuous-conduction-mode operation of the other output. Both outputs are sensed, and the duty cycle of the switching element and the switching frequency are controlled at the same time. A prototype has been built, and the results obtained are discussed.