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Power isolation circuit and intelligent door lock system

A technology of power isolation and power supply, applied in building locks, electronic switches, electrical components, etc., can solve the problems of low-voltage power supply damage, reverse charging, etc., to avoid energy consumption, reduce costs, and improve isolation effect.

Pending Publication Date: 2020-02-07
SHENZHEN OURUIBO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when multiple power supplies are used to supply power to electronic equipment, due to the different power supply voltages of each power supply, the low-voltage power supply is often reversely charged by the high-voltage power supply, thereby causing damage to the low-voltage power supply

Method used

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  • Power isolation circuit and intelligent door lock system
  • Power isolation circuit and intelligent door lock system
  • Power isolation circuit and intelligent door lock system

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Embodiment Construction

[0021] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0022] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...

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Abstract

The embodiment of the invention provides a power isolation circuit and an intelligent door lock system, and relates to the field of electronic equipment. The power isolation circuit comprises an MOS transistor switch circuit and a control circuit. A first end of the MOS transistor switch circuit is used for being electrically connected with a first power supply, and a second end of the MOS transistor switch circuit is used for being connected with a second power supply and equipment to be powered; the control circuit is used for being electrically connected with the second power supply; and the control circuit is electrically connected with the MOS transistor switch circuit, and is used for controlling on or off of the MOS transistor switch circuit according to the output voltage of the second power supply to isolate the first power supply when the second power supply supplies power to the equipment to be powered. According to the invention, the first power supply can be effectively isolated when the equipment to be powered is switched to the second power supply, thereby preventing reverse charging between the first power supply and the second power supply, and improving the powersupply safety of the equipment to be powered.

Description

technical field [0001] The present application relates to the technical field of electronic equipment, in particular to a power isolation circuit and an intelligent door lock system. Background technique [0002] With the rapid development of science and technology, more and more electronic devices have entered people's lives. At present, most electronic devices, especially low-power electronic devices, can usually be powered by multiple power sources, thereby facilitating the use of the electronic devices by users. [0003] However, when multiple power sources are used to supply power to electronic equipment, since the power supply voltages of each power source are different, the low-voltage power source is often reverse-charged by the high-voltage power source, thereby causing damage to the low-voltage power source. Contents of the invention [0004] The purpose of this application is to provide a power isolation circuit and an intelligent door lock system, which can no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/08H03K17/687E05B47/00
CPCE05B47/00E05B2047/0057H02M1/08H03K17/687
Inventor 贺龙胜陈煜平谭荣港黄洪波
Owner SHENZHEN OURUIBO ELECTRONICS
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