POWER FACTOR CORRECTION CIRCUIT AND POWER SUPPLY CIRCUIT
First Claim
1. A power factor correction circuit, comprising:
- a main correction circuit and a switch module, wherein;
the main correction circuit comprises;
a first correction circuit and a second correction circuit that are configured to perform power factor correction on an forward alternating current voltage, and a third correction circuit and a fourth correction circuit that are configured to perform power factor correction on an inverse alternating current voltage, wherein output terminals of the first correction circuit, the second correction circuit, the third correction circuit, and the fourth correction circuit are electrically connected;
the switch module comprises first switch units that are connected in parallel between an input terminal of the first correction circuit and an input terminal of the third correction circuit, and second switch units that are connected in parallel between an input terminal of the second correction circuit and an input terminal of the fourth correction circuit; and
the first switch unit and the second switch unit each comprise two controlled switches that are connected in series, wherein a voltage input terminal connected to a voltage input terminal providing an alternating current input voltage is set between the two controlled switches.
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Accused Products
Abstract
Embodiments of the present application provide a power factor correction circuit and a power supply circuit. The power factor correction circuit includes a main correction circuit and a switch module. The main correction circuit includes: a first correction circuit and a second correction circuit that are configured to perform power factor correction on an forward alternating current voltage, and a third correction circuit and a fourth correction circuit that are configured to perform power factor correction on an inverse alternating current voltage. The switch module includes first switch units that are connected in parallel between an input terminal of the first correction circuit and an input terminal of the third correction circuit, and second switch units that are connected in parallel between an input terminal of the second correction circuit and an input terminal of the fourth correction circuit.
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Citations
16 Claims
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1. A power factor correction circuit, comprising:
- a main correction circuit and a switch module, wherein;
the main correction circuit comprises;
a first correction circuit and a second correction circuit that are configured to perform power factor correction on an forward alternating current voltage, and a third correction circuit and a fourth correction circuit that are configured to perform power factor correction on an inverse alternating current voltage, wherein output terminals of the first correction circuit, the second correction circuit, the third correction circuit, and the fourth correction circuit are electrically connected;the switch module comprises first switch units that are connected in parallel between an input terminal of the first correction circuit and an input terminal of the third correction circuit, and second switch units that are connected in parallel between an input terminal of the second correction circuit and an input terminal of the fourth correction circuit; and the first switch unit and the second switch unit each comprise two controlled switches that are connected in series, wherein a voltage input terminal connected to a voltage input terminal providing an alternating current input voltage is set between the two controlled switches. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
- a main correction circuit and a switch module, wherein;
Specification