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A Boost Series-Parallel All-Resonant Switched Capacitor Converter

A technology of switching capacitors and resonant capacitors, which is applied to the conversion equipment of Cuk converters, the adjustment of electrical variables, and high-efficiency power electronics conversion. It can solve the problems of high transient current peaks, high electromagnetic interference of converters, output voltage and load regulation. Limited capacity and other issues, to achieve the effect of low transient current peak and small capacitor volume

Active Publication Date: 2020-02-07
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The switched capacitor DC converter has the advantages of light weight, small size, high efficiency, high power density, and can be integrated. However, because the capacitor is directly charged or discharged by other capacitors or voltage sources, the switched capacitor converter has the problem of high transient current peaks. , resulting in higher electromagnetic interference and greater current stress in the converter
At the same time, its ability to regulate the output voltage and load is limited

Method used

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  • A Boost Series-Parallel All-Resonant Switched Capacitor Converter

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] The purpose of the present invention is to provide a step-up type series-parallel full resonant switched capacitor converter, the converter has low transient current peaks, small capacitor volume, and can linearly and continuously regulate voltage in a wide range.

[0026] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction...

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Abstract

The invention discloses a boost-type series-parallel full-resonance switched capacitor converter. The boost-type series-parallel full-resonance switched capacitor converter comprises a first one-way switch, a second one-way switch, a third one-way switch, a fourth one-way switch, a first switch tube, a second switch tube, a third switch tube, a first resonant capacitor, a second resonant capacitor, a first resonant inductor and a second resonant inductor. The boost-type series-parallel full-resonance switched capacitor converter provided by the invention realizes resonance of all bypass capacitors, and the charging and discharging processes of all the bypass capacitors in the resonance state are soft charging / discharging, so that the transient state current peak is low, and the volume of the capacitor is small. Meanwhile, time of overlapping of the first resonance current resonance rising stage and the second resonance current linear descending stage is adjusted, and the output voltagecan be adjusted, so that the purpose of wide-range linear continuous voltage regulation is achieved.

Description

technical field [0001] The invention relates to the field of DC-DC converters, in particular to a step-up type series-parallel all-resonance switched capacitor converter. Background technique [0002] The switched capacitor DC converter has the advantages of light weight, small size, high efficiency, high power density, and can be integrated. However, because the capacitor is directly charged or discharged by other capacitors or voltage sources, the switched capacitor converter has the problem of high transient current peaks. , resulting in higher electromagnetic interference and greater current stress in the converter. At the same time, it has limited ability to regulate the output voltage and load. Contents of the invention [0003] The purpose of the present invention is to provide a step-up type series-parallel full resonant switched capacitor converter, the converter has low transient current peaks, small capacitor volume, and can linearly and continuously regulate v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/158H02M3/00
CPCH02M3/005H02M3/1584Y02B70/10
Inventor 李守翔王向周郑戍华谢文浩梁胜男
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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