Emergency power supply circuit

A power supply circuit, emergency technology, applied in circuit devices, emergency power supply arrangements, measuring current/voltage, etc., can solve the problems of fluorescent lamp converters unable to drive faulty lamps, lack of detailed design, emergency lighting equipment loss of emergency lighting, etc.

Inactive Publication Date: 2012-03-14
吕世泽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the design of the above-mentioned commonly used emergency lighting equipment still lacks thoroughness, that is, if the lamp tube originally preset for emergency lighting happens to break down, the above-mentioned emergency power supply circuit or fluorescent lamp converter will also fail. Inability to drive a faulty lamp, causing the emergency lighting device to lose its emergency lighting function

Method used

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Embodiment Construction

[0040] In order to describe the structure, features and functions of the present invention in detail, a number of preferred embodiments are listed and described below with the following figures.

[0041] see figure 1 As shown, the emergency power supply circuit 1 provided by the first preferred embodiment of the present invention is used to be set in a load circuit L having a plurality of load elements A, and can be used in a first power supply N (this embodiment is AC Mains power) abnormal power supply to the load circuit L, provide a second power supply U (such as batteries, UPS systems, generators, etc.) for the normal operation of at least one load element A of the load circuit L; in this embodiment The multiple load elements A may include any form of light-emitting elements such as tungsten filament lamps, spiral bulbs, gas discharge lamps or various LED lamp groups, etc., and depending on the type of light-emitting elements can be further installed in the front stage of ...

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PUM

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Abstract

The invention relates to an emergency power supply circuit, being provided with a plurality of load elements, a switching module and a sensing and control module, wherein the sensing and control module is electrically connected with the switching module, a first power supply and a second power supply; when sensing that the first power supply supplies power to the load elements abnormally, the sensing and control module controls the switching module to stop the conduction among the first power supply and the plurality of loading elements, and controls the switching module to switch at least one load element to be conducted with the second power supply; and when sensing that the magnitude of current of any point on the conductive current loop among the second power supply and the loading elements exceeds a condition range, the sensing and control module controls the switching module to conduct the second power supply with other at least one load element.

Description

technical field [0001] The present invention relates to an emergency power supply circuit, in particular to an emergency power supply circuit capable of ensuring that a load circuit maintains operation. Background technique [0002] Some electrical energy equipment is equipped with an emergency power supply circuit, so that a backup power supply can be provided in the event of a power failure or power failure, so that the electrical energy equipment can continue to operate for a period of time in response to emergencies. [0003] Taking lighting equipment as an example, at present, there are already many kinds of lamps and lanterns that are provided with an emergency power supply circuit in the lamp tube for normal lighting. Then, a power switch module is used to connect and conduct a backup power supply and the lamp tube, so that the lamp tube can continue to operate for a period of time without adding additional traditional hanging emergency lighting lamps. In addition, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06H02J9/02G01R19/00G01R19/165
Inventor 吕世泽
Owner 吕世泽
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