
doi: 10.1109/81.536744
handle: 2158/645180
An analysis and experimental verification of a current-driven two-inductor zero-current-switching (ZCS) low di/sub D//dt full-wave rectifier are given. The design equations are derived using the time-domain analysis and Fourier series technique. The rectifier operates as a full-wave rectifier with two diodes and a one-secondary winding transformer overcoming the limitations of class D current-driven full-bridge and center-tapped rectifiers and preserving their advantages. The rectifier operates with lower conduction losses than the center tapped rectifier. Moreover, the diodes turn on at zero di/sub D//dt, low d/spl nu//sub D//dt, and turn off at low di/sub D//dt. As a consequence, switching losses are reduced and this rectifier is suitable for a high-frequency and high-efficiency operation. Integrated inductors can be used to reduce the size, volume, and cost of the circuit. A breadboard of the rectifier was designed and tested for a constant output voltage V/sub 0/=12 V, and an output current I/sub 0/ ranging from no-load to 12 A. The rectifier was driven by an off-line AC-AC converter operated at an input r.m.s. voltage varying from 176-270 V and a minimum frequency of 550 kHz. The predicted results are in good agreement with those measured. A full-load efficiency of 89.4% was achieved for the entire AC-DC converter.
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