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Phase-shift Soft-switching Pwm Technology

Posted on:2004-10-01Degree:MasterType:Thesis
Country:ChinaCandidate:W Y JuFull Text:PDF
GTID:2192360125953640Subject:Control Engineering
Abstract/Summary:PDF Full Text Request
Soft-switching PWM technique integrates the advantage of resonant converter and constant frequency modulator , which realizes zero-voltage-switching in constant frequency, and is one of the development trends of power electronics. Only adding a resonant inductor, stress of voltage and current in devices turns lower than traditional PWM hard-switching, without no increasing cost and complication of circuit. Phase-shifted zero-voltage-switching PWM converter (PS-ZVS-PWM converter) is one of the topologies using soft-switching PWM technique, and is suited for middle to high power dc-to-dc conversion applications.This dissertation analyzes the operation principle of PS-ZVS-PWM converter systemically. The realization conditions and ways of ZVS, the reasons and the realization methods of loss duty of secondary are discussed. Designing a 42V/360A power supply for phased-array Radar, expatiate characteristic of PS-ZVS-PWM technology and key technical point of solution.
Keywords/Search Tags:Soft-switching, Phase-shifted control, Zero-voltage-switching, Duty
PDF Full Text Request
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