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Resonant DC to DC converter

A resonant circuit and transformer technology, applied in the field of resonant DC-DC power converters, to achieve the effect of reducing quantity, better control and improving performance

Active Publication Date: 2017-08-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to voluntary and regulatory requirements, further improvements in efficiency and size are still required and may be required in some applications

Method used

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  • Resonant DC to DC converter
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Examples

Experimental program
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Effect test

Embodiment Construction

[0034] refer to figure 1 , an exemplary embodiment of a three-phase resonant circuit 100 suitable for use in a three-phase resonant DC-DC converter can be seen. Three-phase power as used herein refers to a type of power supply that uses three conductors or phases to carry alternating current (AC), where each phase has the same frequency and voltage relative to a common reference, and each phase is offset from the other two. Move 120 degrees. Generally, all phases in three-phase electrical power have symmetrical waveforms, such as sine waves or square waves, such that at any given time two of the phases will be offset by a third phase. The resonant circuit 100 is used to receive three-phase electric power at three resonant circuit input nodes 108 , 110 , 112 , wherein the resonant circuit input nodes 108 , 100 , 112 are respectively used to receive a different one of the input phases.

[0035] Each resonant circuit input node 108, 110, 112 is passed as figure 1 External reso...

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Abstract

A resonant circuit includes first, second, and third input nodes for receiving three-phase input power. The resonant circuit formed triangle circuit, the triangle circuit includes a first branch, connected between the first node and the second node angle angle is connected between the second node and the node angle triangle and second branch is connected between the first node and the angle of the first triangle node of the third branch. The first external resonant device is connected between the first input node and the first node angle, second external resonant device is connected between the second input node and the second node angle, third external resonant device is connected between the third input nodes and the nodes in the triangle. Each branch of the triangular circuit comprises an internal resonant device connected in series with the corresponding transformer.

Description

technical field [0001] Aspects of the invention relate generally to power conversion devices, and more particularly, to resonant DC-DC power converters. Background technique [0002] Resonant DC-DC converters are considered by many to be an attractive power conversion solution because of the many benefits they can provide. Galvanic isolation is provided after the resonant tank with the transformer, which is important for level shifting as well as safety. In some applications, such as thin film solar panels, galvanic isolation is required for proper operation. Resonant converters also have inherent properties, such as soft switching of semiconductor switches, that enable high efficiency and low noise. [0003] A commonly used type of resonant converter is the LLC resonant converter, named after the two inductors and one capacitor used to form its resonant tank. LLC resonant converters are popular due to their ability to achieve high efficiencies. However, disadvantages of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/28H02M3/335
CPCH02M3/28H02M3/33576H02M1/0067H02M3/01H02M3/33571H02M3/285Y02B70/10H02M1/0074H02M1/0058H02M7/4815H02M1/0043H02M1/083
Inventor 张彦忠费尔南多·鲁伊斯·戈麦斯乔治斯·特森格涅斯格罗弗·托瑞克·巴斯科佩
Owner HUAWEI TECH CO LTD