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Buck-boost circuit and bidirectional power converter

A buck-boost circuit and circuit technology, used in emergency protection circuit devices, output power conversion devices, instruments, etc., can solve the problems of large buck-boost circuits and inability to accommodate circuit boards, and reduce the layout space. , the effect of reducing the design cost

Active Publication Date: 2021-08-24
APUTURE IMAGING IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a buck-boost circuit, which aims to solve the problem that the traditional buck-boost circuit has a large volume and cannot be accommodated on a circuit board with a limited area.

Method used

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  • Buck-boost circuit and bidirectional power converter
  • Buck-boost circuit and bidirectional power converter
  • Buck-boost circuit and bidirectional power converter

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Embodiment Construction

[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0047]The first aspect of the embodiment of the present invention provides a buck-boost circuit, which ...

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PUM

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Abstract

The invention provides a boost-buck circuit and a bidirectional power converter. The boost-buck circuit comprises a first power port, a second power port, a DC conversion circuit, a plurality of sampling circuits and a controller, and the sampling circuits and the controller carry out voltage sampling at two ends of the first power port, the second power port and the DC conversion circuit, and the DC conversion circuit is controlled to switch between boost and buck modes according to each sampling signal, so buck output of the input voltage of the first power supply port or boost output of the input voltage of the second power supply port is realized; two independent circuits of a boost circuit and a buck circuit do not need to be arranged, so the design cost is reduced; meanwhile, the board arrangement space of the buck-boost circuit is reduced.

Description

technical field [0001] The invention belongs to the technical field of electronic circuits, in particular to a buck-boost circuit and a bidirectional power converter. Background technique [0002] At present, most of the buck-boost circuits on the market are completed by a combination of two circuits, a buck circuit and a boost circuit. One circuit is responsible for boosting the voltage, and the other is responsible for reducing the voltage. [0003] The advantage is that there are many types of selection, the buck and boost will not interfere with each other, and the other can continue to work if one is damaged. The disadvantage is that there are many components and large volume. Because the board frame area provided by the circuit board structure is small, it is necessary to realize the lifting at the same time. The board frame has the problem of not being able to accommodate two conversion circuits due to insufficient space. Contents of the invention [0004] The obje...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/156H02M3/158H02H7/12
CPCH02H7/1213H02M3/156H02M3/1582
Inventor 邓智辉
Owner APUTURE IMAGING IND CO LTD