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UPS (uninterrupted power supply) circuit and control method thereof

A circuit and battery charging technology, which is applied in the field of electronics and communication, can solve the problems of many components and large UPS volume, and achieve the effect of reducing the volume

Active Publication Date: 2012-09-26
HUAWEI DIGITAL POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problem that the existing UPS charging circuit uses too many components, resulting in a larger UPS, the embodiment of the present invention provides a UPS circuit and its control method

Method used

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  • UPS (uninterrupted power supply) circuit and control method thereof
  • UPS (uninterrupted power supply) circuit and control method thereof
  • UPS (uninterrupted power supply) circuit and control method thereof

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] In order to solve the problem of excessive size of the existing UPS circuit, such as figure 2 As shown, this embodiment provides a UPS circuit, the UPS circuit includes: an AC input module, a positive Boost module, a negative Boost module, a first battery BAT+, a second battery BAT-, a third thyristor Q3, The sixth thyristor Q6, the first charging module and the second charging module;

[0031] Among them, the AC input module is used to convert the input commercial power into DC power, which is output at the two output terminals of the busbar of the UPS circuit, and the third thyristor Q3 is used to switch the input between the AC input module and the first battery BAT+, The sixth thyristor Q6 is used to BAT-switch the input b...

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PUM

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Abstract

The invention discloses a UPS (uninterrupted power supply) circuit and a control method thereof, and belongs to the field of electronics and communications. On the basis of an existing UPS circuit, a first charging module and a second charging module are added to the UPS circuit. Inductors in the original UPS circuit are reused to charge two batteries in the UPS circuit. Compared with the existing UPS charging circuits, two inductors are saved and size of the UPS is reduced.

Description

technical field [0001] The invention relates to the field of electronics and communication, in particular to an uninterruptible power supply UPS circuit and a control method thereof. Background technique [0002] UPS (Uninterruptible power supply, uninterruptible power supply), is a device containing energy storage, mainly used to provide uninterrupted power supply to a single computer, computer network system or other power electronic equipment. When the mains input is normal, the UPS will stabilize the mains and supply it to the load. At this time, the UPS is an AC mains voltage stabilizer, and it also charges the battery inside the machine; , the UPS immediately activates the battery inside the machine, boosts the electric energy provided by the battery, and supplies power to the device temporarily. [0003] like figure 1 The circuit shown is an existing UPS circuit. In order to solve the problem of sharing batteries and increase the backup time, a dual-battery topology...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06H02J7/02H02J7/10
Inventor 刘培国费珍福姚晓锋
Owner HUAWEI DIGITAL POWER TECH CO LTD