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Ultrahigh frequency MHz high power conversion device

A conversion device and high-power technology, which is applied in the field of ultra-high-frequency high-power conversion devices, can solve the problems of poor reliability of ultra-high-frequency high-power converters, and achieve the effects of strong reliability, ultra-high frequency, and simple structure

Inactive Publication Date: 2013-10-02
HUNAN UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Therefore, the use of soft switching technology is to realize the reliability of ultra-high frequency high-power converters. When the system has higher requirements for the frequency of power electronic devices, even soft switching technology cannot meet the requirements.

Method used

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  • Ultrahigh frequency MHz high power conversion device
  • Ultrahigh frequency MHz high power conversion device
  • Ultrahigh frequency MHz high power conversion device

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Embodiment Construction

[0016] Further illustrate the present invention below in conjunction with accompanying drawing.

[0017] The invention provides a power electronic device applied to ultra-high-frequency and high-power occasions. It effectively combines N energies with a frequency of f to obtain a new energy with a frequency of Nf and a power increase of N times, realizing the simultaneous increase of frequency and energy.

[0018] Using frequency and energy multiplication technology, the existing power electronics topology can achieve frequency and energy increase after proper combination (single-transistor forward topology, single-transistor flyback topology, full-bridge topology, half-bridge topology, etc.) . Either single-phase output or multi-phase output can meet the requirements.

[0019] Suppose the fundamental wave U 1+ It is a square wave whose frequency is f, voltage amplitude is V, and duty cycle is D=1 / 2N. base wave U 1+ The phases of are shifted backwards by π / N sequentially ...

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Abstract

The invention discloses an ultrahigh frequency MHz high power conversion device, which is characterized in that the device carries out combination on a power electronic topological structure, and can acquires new energy through combining N pieces of energy whose frequency is f, wherein the frequency of the new energy is Nf, and the power of the new energy is N times greater. The combination can be a combination of a single tube forward topology, a single tube flyback topology and a full-bridge topology or a half-bridge topology. The energy can adopt single-phase output or multi-phase output. The energy can be current signals or voltage signals. The ultrahigh frequency MHz high power conversion device has the beneficial effects of simple structure, high reliability, ultrahigh output frequency, and ability of being applied to ultrahigh frequency high-power power electronic devices.

Description

technical field [0001] The invention relates to the field of power electronics, in particular to an ultra-high frequency high-power conversion device. Background technique [0002] With the rapid development of modern industry, more and more fields need ultra-high frequency high-power converters, such as high-frequency induction heating systems, electromagnetic resonance wireless power transmission systems, etc. At present, UHF high-power converters at home and abroad are almost blank. UHF high-power converters mainly use soft switching technology, but the power devices, passive devices, cables, and wiring of UHF high-power converters , grounding, shielding, etc. have many special requirements. Therefore, the use of soft-switching technology is poor in the reliability of UHF high-power converters. When the system has higher requirements for the frequency of power electronic devices, even soft-switching technology cannot meet the requirements. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/49
Inventor 黄守道李中启王辉李孟秋高剑罗德荣
Owner HUNAN UNIV
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