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Boost circuit and dc/dc converter

A technology of boosting circuit and voltage dividing resistor is applied in the direction of adjusting electrical variables, converting DC power input into DC power output, instruments, etc. It can solve the problems of poor applicability of DC/DC converters and achieve good applicability, The effect of improving adaptability

Active Publication Date: 2020-11-03
SHANGHAI AWINIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, one of the technical problems solved by the embodiments of the present invention is to provide a boost circuit and a DC / DC converter to overcome the problem of poor applicability of DC / DC converters in the prior art

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Embodiment Construction

[0021] Of course, implementing any technical solution of the embodiments of the present invention does not necessarily need to achieve all the above advantages simultaneously.

[0022] In order to make those skilled in the art better understand the technical solutions in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described above are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the embodiments of the present invention should fall within the protection scope of the embodiments of the present invention.

[0023] The specific implementation of the embodiments of the present invention is further described below with reference ...

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Abstract

Embodiments of the invention provide a boosting circuit and a DC / DC converter. The boosting circuit comprises a voltage output end, an output voltage control module and a detection module; the outputvoltage control module is provided with a first control mode for enabling the target output voltage of the voltage output end to be a preset voltage and a second control mode for enabling the target output voltage of the voltage output end to be adjustable; the detection module is used for detecting whether a first voltage-dividing resistor string exists in the output voltage control module to generate a voltage control signal or not, and controls the output voltage control module to be in a first control mode or a second control mode according to the voltage control signal; and the resistancevalue of at least one first voltage-dividing resistor in the first voltage-dividing resistor string can be adjusted. The boosting circuit can adapt to different output voltage requirements and is better in applicability.

Description

technical field [0001] Embodiments of the present invention relate to the field of electrical technology, and in particular, to a booster circuit and a DC / DC converter. Background technique [0002] With the popularization and performance improvement of portable electronic devices, people's daily life and work rely more and more on these electronic devices. As we all know, existing electronic devices are usually powered by lithium-ion batteries, and the voltage of lithium-ion batteries will decrease as the battery capacity becomes smaller. In other words, as the use time of lithium-ion batteries increases , the output voltage will gradually decrease. In order to ensure that the electronic equipment can work normally under the condition of changing battery voltage, it is necessary to use a DC / DC converter to keep the output voltage constant to eliminate the influence caused by the change of the input voltage. [0003] A boost converter is a type of DC / DC converter that can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/158
CPCH02M3/1584
Inventor 黄建刚程剑涛
Owner SHANGHAI AWINIC TECH CO LTD
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