Direct-current output uninterrupted power supply

A power supply, DC output technology, applied in the direction of collectors, electric vehicles, electrical components, etc., can solve the problem of increasing the volume of the power system, and achieve the effect of avoiding long-term discharge

Inactive Publication Date: 2011-01-19
ACBEL ELECTRONICS DONG GUAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Therefore, the main purpose of the invention is to provide an uninterrupted power supply that switches the discharge circuit through an electronic switch. Since the electronic switch is used for switching, the problem of using a relay to increase the size of the power system can be solved.

Method used

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  • Direct-current output uninterrupted power supply
  • Direct-current output uninterrupted power supply

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Embodiment Construction

[0037] The technical means adopted by the present invention to achieve the intended purpose are further described below in conjunction with the drawings and preferred embodiments of the invention.

[0038] Such as figure 1 As shown, the uninterruptible power supply 10 of the present invention includes:

[0039]The first to third DC power supply loops 101-103 are respectively provided with a rectifier 11-13, and the input ends of each rectifier 11-13 are respectively connected to an AC power supply; wherein, the second DC power supply loop 102 is separately provided with a discharge control Circuit 15, a pulse width modulation controller 16, the input end of the discharge control circuit 15 is connected with the rectifier 12 on the second DC power supply circuit 102, and the output end of the discharge control circuit 15 is connected with the pulse width modulation controller 16 , used to control the closing (DISABLE) or starting (ENABLE) of the pulse width modulation control...

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PUM

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Abstract

The invention relates to a direct-current output uninterrupted power supply, which comprises a direct-current power supply circuit, a direct-current discharge circuit, a discharge circuit switching module arranged on the direct-current discharge circuit, a battery connected with the direct-current power supply circuit through the discharge circuit switching module, and a power supply converter connected with the discharge circuit switching module and the battery, wherein the direct-current power supply circuit is connected between an alternating-current power supply and a direct-current power supply load; the input end of the power supply converter is connected with the alternating-current power supply; the discharge circuit switching module comprises an electronic switching control circuit which controls the battery to be charged by the power supply converter through a plurality of transistors or discharges the direct-current power supply load through the direct-current power supply circuit; and the electronic switching control circuit can solve the problem of over-large volume caused by the conventional relay switching circuit.

Description

technical field [0001] The invention relates to a continuous power supply with direct current output, in particular to a continuous power supply for switching a discharge circuit through an electronic switch. Background technique [0002] Known communication equipment adopts DC working power supply. In the power supply mode, the AC power is converted into DC power by a rectifier and a DC-to-DC converter (DC / DC) and then supplied to the load (communication equipment). However, in order to ensure Once the AC power supply is interrupted, the communication equipment can still operate normally, that is, it must be used with an uninterruptible power supply (UPS), such as image 3 As shown, the uninterruptible power supply 70 includes first to third DC power supply circuits 701~703, and the first to third DC power supply circuits 701~703 are respectively provided with a rectifier 71~73, and the input of the rectifiers 71~73 The terminals are respectively connected to an AC power su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
Inventor 李金桥何念姣杨勇
Owner ACBEL ELECTRONICS DONG GUAN
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