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ZVS & ZCS Based Converter for Efficiency Regulation

T. Bharani Prakash
2012 IOSR Journal of Engineering  
a new high-efficiency regulation method for a zero-current and zero-voltage current-fed pushpull converter is presented. The method proposed is based on the use of a controlled transformer as a postregulator, which adds or subtracts an additional voltage to the output filter of the converter. An auxiliary regulator, which only handles a percentage of the output power, controls this transformer, and therefore, results in much higher efficiency than a normal preregulator would have. The novelty
more » ... have. The novelty of the presented converter is that regulation is achieved without affecting the zero-voltage and zero-current switching in any working conditions. Small-and large-signal models of the converter have been developed and a low-power prototype has been simulated and implemented. The good agreement, between the experimental simulations and theoretical results, validates the theoretical developments.
doi:10.9790/3021-021212833 fatcat:sa5enpbg3zcxpmomgmwf4vfjwq