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An energy recycling electronic load system with an input-parallel and output-series (IPOS) active clamping current-fed half-bridge converter is proposed in this paper. It is suitable for ultra low voltage high current DC power supplies in the burn-in test. The current-fed half-bridge converter has advantages of high voltage conversion ratio, low input current ripple and high efficiency. Its duty cycle...
A multi-output auxiliary power supply realized by a flyback converter is presented for providing the needed low power supplied for the control circuits and driving circuits in power processing systems. In the proposed circuit topology, lossless snubbers are introduced into the flyback converter to recover energy trapped in leakage inductor of transformer, to smooth out voltage across drain-source...
This paper investigates a direct AC-AC IPT system which takes 50Hz mains input and generates 50Hz mains output without requiring a DC link in conventional systems. This technique is based on matrix converters giving advantages of low energy storage. The AC processing control concept is used to produce a controllable AC output. Preliminary simulation results have verified the operation of such a system.
This paper presents a new design methodology of the transient voltage clamp (TVC), which operates by controlling inductor current slew rate in 4 switch buck boost converter (4SBB). When 4SBB operates in boost mode, the TVC circuit changes inductor current slew rate during load current step-down to achieve a faster voltage regulation. Due to the slow inductor current slew rate, traditional 4SBB could...
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