A Topological Conversion Type Resonant Soft-Switching DC Converter with Multi-resonant Elements

A technology of DC converter and topology conversion, which is applied in the direction of converting DC power input to DC power output, electrical components, instruments, etc. It can solve the problems of large primary conduction loss and the inability of the converter to realize step-down conversion, etc., and achieve high gain , Increase the input voltage range, the effect of high efficiency
CN107196518BActive Publication Date: 2019-09-20TIANJIN UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN UNIV
Publication Date
2019-09-20

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Abstract

The invention discloses a topology conversion type multi-resonance element resonant soft-switching DC converter, which is composed of a bridge inverter circuit, a topology conversion multi-element resonance circuit and a diode rectifier circuit connected in sequence, and the converter is composed of the bridge inverter Transforming circuit input, output from the diode rectifier circuit after the action of the topology conversion multi-component resonant circuit; the bridge inverter circuit can realize the switching between the half bridge and the full bridge according to the switching of the switching tube; the topology conversion multi-component resonant circuit includes two A transformer to effectively broaden the power transmission capacity of the converter; the topology conversion multi-component resonant circuit can realize the switching between the LCLCL resonant circuit and the CLTCL resonant circuit through the auxiliary switch; at the same time, it can realize the zero-voltage turn-on of the switch tube and the diode of the post-stage rectification circuit The zero-current shutdown (ZCS) can reduce the circulating current, improve the efficiency and capacity of the converter, and has the advantages of wide-range adjustable input and output voltages and over-current protection.
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Description

technical field

[0001] The invention relates to a resonant soft-switching direct current converter, in particular to a high-efficiency, wide voltage range topology transformation type multi-resonance element resonant soft-switching direct current converter. Background technique

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Claims

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