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A PFC inductance and battery boost transformer integrated topology

A technology of battery boosting and topology structure, which is applied in the direction of adjusting electrical variables, high-efficiency power electronic conversion, instruments, etc., and can solve the problems of many components and complicated circuits.

Inactive Publication Date: 2018-12-21
佛山市众盈电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The output capacity below 5kVA is two independent circuits and independent magnetic components, so the online UPS with low power has more complicated circuits and uses more components.

Method used

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  • A PFC inductance and battery boost transformer integrated topology
  • A PFC inductance and battery boost transformer integrated topology

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Embodiment Construction

[0021] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0022] An integrated topology structure of a PFC inductor and a battery boost transformer, including a voltage stabilizing module and a power supply boost module;

[0023] The voltage stabilizing module works in the commercial power mode, and the voltage stabilizing module provides stable positive and negative BUS voltages and corrects power factor;

[0024] The power supply boost module turns to the battery-powered working state when the mains power is abnormal, and boosts the battery voltage into a stable positive and negative BUS.

[0025] Such as figure 1 and figure 2 As shown, the topological structure of the present invention is the front-end circuit unit of the online UPS, which aims to provide stable positive and negative BUS power for the following inverter unit (the circuit that converts direct cu...

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PUM

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Abstract

A PFC inductance and battery boost transformer integrate topology structure comprises a voltage stabilizing module and a power supply boost module; The voltage stabilizer module works in the mains mode. The voltage stabilizer module provides stable positive and negative BUS voltage and corrects a power factor. When the mains power is abnormal, the power supply boost module switches to the battery-powered operation state, and converts the battery voltage boost to a stable positive and negative BUS. The purpose of the invention is to provide an PFC inductance and battery boost transformer integrate topology structure, which reduces the cost, reduces the volume and simplifies the circuit.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to an integrated topology structure of a PFC inductor and a battery step-up transformer. Background technique [0002] Low battery voltage online UPS usually refers to a type of equipment with an output capacity below 5kVA. Because of its small power capacity, the battery pack voltage of this type of equipment is usually relatively low, generally not exceeding 96V. Most of the popular UPSs on the market Concentrate between 24-48V. As we all know, the online UPS realizes its functions through two-stage conversion: 1. The running state of the mains power is converted by the PFC circuit to realize the AC-DC process, and provides a stable BUS DC voltage for the inverter unit. 2. In the battery running state, a booster unit boosts the lower battery voltage to 380V to provide a stable BUS DC voltage for the inverter unit. For equipment with a capacity greater than 5kVA, beca...

Claims

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Application Information

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IPC IPC(8): H02M7/217H02M3/335H02M3/337H02M1/34H02M1/42
CPCH02M1/4208H02M3/33592H02M3/3376H02M7/217H02M1/348Y02B70/10
Inventor 韩书兵罗焕均
Owner 佛山市众盈电子有限公司
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