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Power factor correction (PFC) power socket

A technology for power factor correction and power factor, which is applied in output power conversion devices, electrical components, high-efficiency power electronic conversion, etc., and can solve problems such as no correction function.

Inactive Publication Date: 2012-07-11
张旺华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of socket can display the power and power factor of the current electrical appliances, but it does not have the correction function

Method used

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  • Power factor correction (PFC) power socket
  • Power factor correction (PFC) power socket
  • Power factor correction (PFC) power socket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. In order to reduce the phase difference between the voltage and current of the load and improve the power factor, the figure 1 Schematic of the AC-DC module shown.

[0013] figure 1 Among them, the output voltage sample X is multiplied by the input voltage sample Y as the reference signal of the peak value of the input current. Compare with check inductor current, where Rs is check inductor current sense resistor. Its working principle is that in the conduction phase, the switch tube is turned on. The inductor current increases linearly and the inductor stores energy. When the value of the inductor current reaches the reference current allowed by the multiplier, the drive circuit turns off the switch tube. The inductor current decreases linearly. Inductors release stored energy to the load. When it is detected that the inductor current returns to ...

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PUM

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Abstract

The invention discloses a power factor correction (PFC) power socket, which comprises a PFC AC-DC module and an inversion DC-AC module; the PFC AC-DC module is used for carrying out power factor adjustment on input main supply and converting an input AC power supply into a 350V DC power supply with the power factor being close to 1 by adopting a PFC controller; and the inversion DC-AC module is used for converting the DC power supply into a sine AC power supply with the frequency of 50Hz and the effective voltage of 220V by adopting an inversion technology. The PFC power socket is used for an inductive reactance or capacitive reactance load with lower power factor and has the capability of effectively improving the power factor of the load, thereby reducing the pollution to a power grid caused by the load and improving the energy utilization rate.

Description

technical field [0001] The invention relates to a power factor correction power socket, in particular to a power factor correction power socket capable of reducing the phase difference between a load's voltage and current. Background technique [0002] In traditional circuits, because of the phase difference between the voltage and current of the load, the power factor of many household appliances is relatively small. Now there is a power socket on the market, which has the function of power factor display. This kind of socket can display the power and power factor of the current electrical appliances, but it does not have a correction function. Contents of the invention [0003] The purpose of the present invention is to provide a power socket with power factor correction function. [0004] An object of the present invention is achieved through the following technical solutions: [0005] A power factor correction power socket, which includes: a power factor correction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/42H02M1/42
CPCY02B70/126Y02B70/10
Inventor 张旺华
Owner 张旺华
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