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Buck-Boost Circuits and Bidirectional Power Converters

A buck-boost circuit and circuit technology, which is applied to emergency protection circuit devices, output power conversion devices, instruments, etc., can solve the problems of unable to accommodate circuit boards, large volume of buck-boost circuits, etc., to reduce design costs, The effect of reducing layout space

Active Publication Date: 2021-11-12
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 Circuits and Bidirectional Power Converters
  • Buck-Boost Circuits and Bidirectional Power Converters
  • Buck-Boost Circuits and Bidirectional Power Converters

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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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Abstract

The present invention proposes a buck-boost circuit and a bidirectional power converter, wherein the buck-boost circuit includes a first power port, a second power port, a DC conversion circuit, a plurality of sampling circuits and a controller, and the sampling circuit and the controller Sampling the voltages at both ends of the first power port, the second power port, and the DC conversion circuit, and controlling the DC conversion circuit to switch between step-up and step-down according to each sampling signal, so as to realize the input voltage of the first power port Step-down output or step-up output of the input voltage of the second power port eliminates the need to set up two sets of separate circuits for a step-up circuit and a step-down circuit, which reduces the design cost and at the same time reduces the layout space of the step-down circuit.

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