Power factor correction circuit and control method thereof, medium, compressor and air conditioner

A power factor correction and circuit technology, which is applied in compressors and air conditioners, media, totem pole power factor correction circuits and their control fields, can solve the problems of multi-switching devices, high working efficiency, high cost of use, etc., and achieve low loss , Improve operating efficiency, the effect of high efficiency advantages

Pending Publication Date: 2022-01-25
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some existing power factor correction circuits have a boost function, that is, the output voltage of the power factor correction circuit is higher than the input voltage, but when it is required to achieve double voltage output, that is, the output voltage is twice the input voltage, the existing power factor The correction circuit needs to u

Method used

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  • Power factor correction circuit and control method thereof, medium, compressor and air conditioner
  • Power factor correction circuit and control method thereof, medium, compressor and air conditioner
  • Power factor correction circuit and control method thereof, medium, compressor and air conditioner

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Example Embodiment

[0137] Refer figure 1 In an embodiment of the present invention, a totem state power factor correction circuit provides a rectifier module, an inductor module, a capacitive module, a switching module, and a control module.

[0138] In an embodiment of the present invention, the rectifier module includes a plurality of unidirectional conductive units and a plurality of switching units, which are connected to the shape of a bridge, each in parallel one switching unit, respectively. In an embodiment of the present invention, a diode can be used as a unidirectional conductive unit, or other devices having one-way turning power can be used as one-way conductive units; may be used with triodes, field effect tubes or insulated gate bipolar transistors. Control the power-off power to the switch unit.

[0139] In an embodiment of the present invention, the rectifying module includes a first one-way conduction unit D1, a second one-way conduction unit D2, a third one-way communication unit ...

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Abstract

The invention discloses a totem pole power factor correction circuit and a control method thereof, a medium, a compressor and an air conditioner. The totem pole power factor correction circuit comprises a rectifier module, an inductor module, a capacitor module, a switch module and a control module, and the control module is used for controlling the rectifier module and the switch module to work in a high-frequency switch mode or a multi-pulse mode according to working parameters of the load. When working in a high-frequency switching mode, the input current waveform can be controlled to change along with the input voltage, so that the input current harmonic wave and the power factor are improved, the bus voltage is raised, and boost output is realized; and when working in a multi-pulse mode, the totem-pole power factor correction circuit can realize voltage-multiplying output with lower loss, and the totem-pole power factor correction circuit can realize boosting and voltage-multiplying functions, so that the totem-pole power factor correction circuit adapts to voltage requirements of different working parameters of a load, and keeps the advantage of high efficiency of the power factor correction circuit. The correction circuit is widely applied to the technical field of electronic power.

Description

technical field [0001] The invention relates to the technical field of electronic power, in particular to a totem pole power factor correction circuit, a control method thereof, a medium, a compressor and an air conditioner. Background technique [0002] In the existing electronic power technology, in order to obtain a higher power factor, a PFC (Power Factor Correction, power factor correction) circuit is commonly used to provide the bus voltage. Some existing power factor correction circuits have a boost function, that is, the output voltage of the power factor correction circuit is higher than the input voltage, but when it is required to achieve double voltage output, that is, the output voltage is twice the input voltage, the existing power factor The correction circuit needs to use more switching devices, and it is difficult to achieve high working efficiency. Therefore, in the prior art, when there is a demand for boosting and voltage doubling, a power factor correcti...

Claims

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Application Information

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IPC IPC(8): H02M1/42H02M1/12H02M7/219H02P27/06
CPCH02M1/4233H02M1/4225H02M1/12H02M7/219H02P27/06Y02B70/10
Inventor 徐锦清曾贤杰张杰楠文先仕钟雄斌胡斌
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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