Multi-path input alternating/direct current hybrid power supply

An AC/DC hybrid, power supply technology, applied in emergency power arrangement, high-efficiency power electronic conversion, electrical components, etc., can solve problems such as reducing system reliability and operability, achieve uninterrupted power supply, and reduce conversion time. , the effect of avoiding cost input

Inactive Publication Date: 2009-10-07
MORNSUN GUANGZHOU SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Switching between primary and backup power takes time, reducing system reliability and operability

Method used

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  • Multi-path input alternating/direct current hybrid power supply
  • Multi-path input alternating/direct current hybrid power supply
  • Multi-path input alternating/direct current hybrid power supply

Examples

Experimental program
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Embodiment Construction

[0021] The multi-channel AC / DC hybrid power supply of the present invention will be further described below in conjunction with specific embodiments.

[0022] exist figure 1 In the first shown embodiment, a multi-channel AC-DC hybrid power supply includes a main power supply, a backup power supply, a rectifier bridge A, a rectifier bridge B, an AC / DC power converter, and subsequent equipment (load) . The input terminal of the rectifier bridge A is connected to the main power supply, and the input terminal of the rectifier bridge B is connected to the standby power supply. The output terminals of rectifier bridge A and rectifier bridge B are connected in parallel to the input terminal of the AC / DC power converter. The output end is connected to the neutral line input end of the AC / DC power converter; the output end of the AC / DC power converter is connected to the subsequent equipment to supply power to it.

[0023] Since the AC / DC power converters have built-in rectifier bri...

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PUM

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Abstract

The invention discloses a multi-path input alternating/direct current (AC/DC) hybrid power supply. The output end of a main power supply is connected with a rectifying bridge; the output end of each spare power supply is respectively connected with a rectifying bridge; the output ends of all the rectifying bridges are connected in parallel, wherein the positive output ends of the rectifying bridge are connected with the input end of a live line of an AC/DC power converter; and the negative output ends of the rectifying bridge are connected with the input end of a zero line of the AC/DC power converter. The power supply has the advantages of needing no additional switcher to control the switching of the main power supply and the spare power supply, realizing the power supply with high cost performance, reducing conversion time, realizing uninterrupted power supply, strengthening the reliability of the power supply, realizing hot spare function and leading the main power supply and the spare power supply to have dual effects; a mode with a plurality of rectifying bridges is adopted to expand the input voltage range; the input voltage can be alternating current with different frequencies and different phases, or one alternating current, one direct current, and even the two are direct current input.

Description

technical field [0001] The invention relates to a power supply, in particular to a multi-channel input AC-DC hybrid power supply. Background technique [0002] With the development of science and technology, people have put forward higher and higher requirements for the power supply quality and reliability of the power supply, especially some applications that require uninterrupted power supply (such as power systems) have very strict requirements on system reliability; at the same time Hope to have a lower price and a wider range of applications. In the common power supply system, there is a backup power supply, but generally only one power supply is valid. If the main power supply is valid, the backup power supply is invalid; if the backup power supply is invalid, the main power supply is invalid. Switching between the main power source and the backup power source takes a certain amount of time, thereby reducing the reliability and operability of the system. Contents of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/10H02J9/06
CPCY02B70/16Y02B70/10Y02B70/30Y04S20/20
Inventor 王中于
Owner MORNSUN GUANGZHOU SCI & TECH
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