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UPS preceding stage electric volt increase station

A booster device and pre-stage technology, applied in circuit devices, output power conversion devices, high-efficiency power electronic conversion and other directions, can solve the problems of poor reusability and poor cost performance of main power components, and achieve high cost performance.

Active Publication Date: 2010-07-28
SANTAK ELECTRONICS SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The circuits listed above all highlight the problem of poor reusability of main power components, and the cost performance is poor in small and medium power applications.

Method used

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  • UPS preceding stage electric volt increase station
  • UPS preceding stage electric volt increase station
  • UPS preceding stage electric volt increase station

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Embodiment Construction

[0060] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0061] figure 1 and figure 2 Shown is the structure of an embodiment of the present invention under different working conditions. A UPS pre-stage boosting device, comprising the following parts:

[0062] A selector switch 130 using a single pole double throw switch;

[0063] a power factor inductor 140, one end of which is coupled to the selection switch 130;

[0064] The common boost circuit 150 includes: sequentially coupled, a first switch Q1 connected in parallel with the first diode, a second switch Q2 connected in parallel with the second diode, and a third switch Q2 connected in parallel with the third diode switch Q3;

[0065] The rectifying circuit 160 includes: a rectifying diode D5 whose one end is coupled to the first node, and the other end is coupled to the forward output end of the UPS pre-stage boosting device, and one en...

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Abstract

The invention provides a UPS preceding stage electric volt increase station, comprising an option switch (130), a power factor inductor (140), a common booster circuit (150) which comprises a first switch (Q1), a second switch (Q2) and a switch (Q3) which are coupled with each other in sequence, a rectifying circuit (160) which comprises a rectifying diode (D5) and a rectifying diode (D6) and a filter circuit (170) which comprise a first capacitor (C1) and a second capacitor (C2).Compared with the existing technologies, the invention has the advantages that maximum multiplexing of the major power component at the battery mode and the power supply mode can be realized and higher cost performance can be achieved.

Description

technical field [0001] The invention relates to a UPS pre-stage boosting device. Background technique [0002] In the existing UPS power supply, in order to meet the level requirements of power factor and harmonics and the conversion voltage requirements of the subsequent converter (Converter), it is usually necessary to boost the mains input or power factor correction. When the mains power does not meet the requirements, battery power is required, and the voltage of the battery needs to be boosted directly for subsequent stage conversion. [0003] Therefore, the topology of the existing UPS pre-stage boosting device can usually be divided into two cases. The first is to separate the mains boosting circuit from the battery boosting circuit. In the mains mode, an inductor can be used. The boost of the positive and negative BUS, and the boost of the battery are completely realized by another converter; Only two inductors can be used to realize the boost of positive and negat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/07H02M7/04
CPCH02M3/158H02J9/04Y02B70/126H02M1/4208H02J9/06Y02B70/10
Inventor 李伦全李和明庄书琴贺锋顾亦磊
Owner SANTAK ELECTRONICS SHENZHEN