Power supply and power supply system

A technology of power supply and AC power supply, which is applied in the field of power supply and can solve problems affecting the stability of UPS

Pending Publication Date: 2022-04-08
KEHUA DATA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a power supply and a power supply system to solve the problem in the prior art that the bypass switch is connected in parallel with multiple bidirectional SCRs, which affects the stability of the UPS.

Method used

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  • Power supply and power supply system
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Embodiment Construction

[0030] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0031] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0032] refer to figure 1 The implementation of the present invention provides a power supply, including: a main power supply module 11 , a first bypass module 12 , a second bypass module 13 and a main control module 14 .

[0033] The first end of the main power supply...

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Abstract

The invention is applicable to the technical field of power supplies, and provides a power supply and a power supply system.The power supply comprises a main power supply module, a first bypass module, a second bypass module and a main control module; when the power supply is in a bypass mode and the AC power supply is in a positive half cycle, the first bypass module is unidirectionally conducted, and the AC power supply supplies power to the load through the first bypass module; and when the AC power supply is in a negative half cycle, the second bypass module is unidirectionally conducted, and the AC power supply supplies power to the load through the second bypass module. According to the invention, the two bypass modules which can be conducted unidirectionally are arranged and are respectively used for passing positive and negative alternating current, a plurality of parallel bidirectional bypass modules are not needed, the phenomenon of non-uniform current is avoided, and the performance of the power supply is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of power supplies, and in particular relates to a power supply and a power supply system. Background technique [0002] UPS is an uninterruptible power supply (Uninterruptible Power Supply), which is an uninterruptible power supply with an energy storage device. It is mainly used to provide uninterrupted power supply for power electronic equipment. Normal power supply of electronic equipment. [0003] In the prior art, the bypass switch of the UPS is usually a bidirectional SCR. When the UPS fails to switch to the bypass power supply, the main control module controls the bidirectional SCR to conduct alternately in both directions. Due to the small current flow capacity of the bidirectional SCR modules packaged in the same specification, two or more bidirectional SCR modules need to be connected in parallel in order to achieve large current flow. Due to the delay of the control signal, it is difficult to ens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06H02M1/06
Inventor 上官昌焜苏宁焕林永涛陈威龙苏俊达
Owner KEHUA DATA CO LTD
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