Power factor correction circuit and single-phase electric equipment
The invention provides a power factor correction circuit and single-phase electric equipment. The power factor correction circuit comprises a common-mode noise filtering unit and a rectifier unit. Thecommon-mode noise filtering unit comprises a common-mode inductor, a first capacitor and a second ca...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a power factor correction circuit and single-phase electric equipment. The power factor correction circuit comprises a common-mode noise filtering unit and a rectifier unit. Thecommon-mode noise filtering unit comprises a common-mode inductor, a first capacitor and a second capacitor; the input end of the common-mode inductor is connected with a power grid, and the output end is connected with the rectifier unit; the first capacitor is connected between the live wire end of the power grid and the ground; the second capacitor is connected between the zero line end of thepower grid and the ground; and the rectifier unit comprises a first field effect transistor half-bridge group and a second field effect transistor half-bridge group. Compared with the prior art, a differential mode inductor is removed, the power density is greatly improved, the cost is reduced, the material consumption is reduced, and more environmental protection is realized; a rectifier bridgeis removed, so that the los |
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