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Low-voltage power supply enabling control circuit, enabling module and low-voltage control chip

A control circuit and low-voltage power supply technology, applied in the direction of control/regulation system, electrical components, and adjustment of electrical variables, etc., to achieve the effect of ingenious structural design

Pending Publication Date: 2021-05-14
拓尔微电子股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] What the present invention aims to solve is the problem of the existing buck-boost control chip in the low-voltage power supply state

Method used

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  • Low-voltage power supply enabling control circuit, enabling module and low-voltage control chip
  • Low-voltage power supply enabling control circuit, enabling module and low-voltage control chip

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is some embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present invention, all other implement...

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Abstract

The invention provides a low-voltage power supply enabling control circuit, an enabling module and a low-voltage control chip. The low-voltage power supply enabling control circuit comprises a first branch circuit connected to an EN signal input end, a second sub-circuit, a self-biasing circuit connected between the first branch circuit and the second branch circuit, and an output circuit connected to the second branch circuit. The low-voltage power supply enabling control circuit is ingenious in structural design, and enables control of the boost-buck control chip under VIN low-voltage power supply.

Description

technical field [0001] The invention relates to the field of synchronous buck-boost control chips, and more specifically relates to a low-voltage power supply enabling control circuit, an enabling module and a low-voltage control chip. Background technique [0002] In the existing market, the enabling technology of the buck-boost control chip may not be able to start normally due to the process angle and temperature when the VIN voltage is low, thus affecting the use effect of the chip. Contents of the invention [0003] The purpose of the present invention is to provide a low-voltage power supply enabling control circuit, an enabling module and a low-voltage control chip. [0004] What the invention aims to solve is the problem of the existing buck-boost control chip in the low-voltage power supply state. [0005] Compared with the prior art, the technical solution of the present invention and its beneficial effects are as follows: [0006] A low-voltage power supply en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/156H02M1/088H02M1/36
CPCH02M3/156H02M1/088H02M1/36
Inventor 倪宇驰李垚苏新河方兵洲鲜宗钰
Owner 拓尔微电子股份有限公司
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