Single-stage two-way step down DC converter type high frequency link inverter

A technology of DC converters and inverters, applied in the direction of converting DC power input to DC power output, irreversible DC power input converting to AC power output, and converting equipment with intermediate conversion to AC, etc., can solve the problem of high cost. , low power density and reliability, to achieve the effect of low cost, low audio noise, and small output voltage ripple
CN100456617CActive Publication Date: 2009-01-28FUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
FUZHOU UNIV
Publication Date
2009-01-28

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Abstract

This invention relates to a mono-pole two-way step-down DC converter high frequency link inverter, the circuit of which is composed of two same high frequency electric isolated two-way power flow step-down DC converters outputting inverse low frequency sine pulse DC voltages in differential circuit, which can convert a DC voltage to necessary sine AC voltage having the advantages of simple circuit topology, isolated AC load and DC supply high frequency, two-way power flow, mono-pole power transformation and small volume.
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Description

technical field

[0001] The single-stage bidirectional step-down (Buck) DC converter type high-frequency link inverter involved in the present invention belongs to the power electronic conversion technology. Background technique

[0002] The inverter is a static conversion device that uses power semiconductor devices to convert direct current into alternating current for use with alternating current loads. An inverter with high-frequency electrical isolation between the output AC load and the input DC power supply is called a high-frequency link inverter. High-frequency link inverter, because the transformer used to realize the output and input electrical isolation and voltage matching function is above 20kHz, its volume, weight and audio noise are greatly reduced, and the shortcomings of the low-frequency link inverter are overcome. It has wide application prospects in the inverter occasions where DC generators, storage batteries, solar cells and fuel cells are the main DC ...

Claims

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