UPS ELECTRICITY SUPPLY CONTROL CIRCUIT AND UPS ELECTRICITY SUPPLY
First Claim
1. A UPS control circuit connected with a rechargeable battery comprising an input filtering circuit, a rectification circuit, an inversion circuit, a static transfer switch, an output filtering circuit, and a control circuit, the input filtering circuit, the rectification circuit, the inversion circuit, the static transfer switch, and the output filtering circuit being connected sequentially, an output terminal of the input filtering circuit being connected with an input terminal of the static transfer switch, and the rectification circuit, the inversion circuit, and the static transfer switch all being controlled by the control circuit,wherein the UPS control circuit further comprises a multipurpose DC/DC circuit connected between an output terminal of the rectification circuit and the rechargeable battery,the multipurpose DC/DC circuit is connected with and controlled by the control circuit, so that in a battery mode, the rechargeable battery supplies an input voltage to the inversion circuit via the multipurpose DC/DC circuit;
- and in a mains power mode, the rechargeable battery is charged by an output voltage of the rectification circuit via the multipurpose DC/DC circuit.
2 Assignments
0 Petitions
Accused Products
Abstract
A UPS control circuit and a UPS is provided. The UPS includes a rechargeable battery and a UPS control circuit connected with the rechargeable battery. The UPS control circuit includes an input filtering circuit, a rectification circuit, an inversion circuit, a static transfer switch, an output filtering circuit, a control circuit, and a multipurpose DC/DC circuit connected between the rechargeable battery and an output terminal of the rectification circuit. The multipurpose DC/DC circuit is controlled by the control circuit. In a battery mode, the rechargeable battery supplies an input voltage to the inversion circuit via the multipurpose DC/DC circuit. In a mains power mode, the rechargeable battery is charged by an output voltage of the rectification circuit via the multipurpose DC/DC circuit. Therefore, no independent charging circuit is needed to charge the rechargeable battery, causing a simpler circuit structure and a lower cost, and providing greater value to the customer.
10 Citations
18 Claims
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1. A UPS control circuit connected with a rechargeable battery comprising an input filtering circuit, a rectification circuit, an inversion circuit, a static transfer switch, an output filtering circuit, and a control circuit, the input filtering circuit, the rectification circuit, the inversion circuit, the static transfer switch, and the output filtering circuit being connected sequentially, an output terminal of the input filtering circuit being connected with an input terminal of the static transfer switch, and the rectification circuit, the inversion circuit, and the static transfer switch all being controlled by the control circuit,
wherein the UPS control circuit further comprises a multipurpose DC/DC circuit connected between an output terminal of the rectification circuit and the rechargeable battery, the multipurpose DC/DC circuit is connected with and controlled by the control circuit, so that in a battery mode, the rechargeable battery supplies an input voltage to the inversion circuit via the multipurpose DC/DC circuit; - and in a mains power mode, the rechargeable battery is charged by an output voltage of the rectification circuit via the multipurpose DC/DC circuit.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A UPS comprising a rechargeable battery and a UPS control circuit connected with the rechargeable battery, the UPS control circuit comprising an input filtering circuit, a rectification circuit, an inversion circuit, a static transfer switch, an output filtering circuit, and a control circuit, the input filtering circuit, the rectification circuit, the inversion circuit, the static transfer switch, and the output filtering circuit being connected sequentially, an output terminal of the input filtering circuit being connected with an input terminal of the static transfer switch, and the rectification circuit, the inversion circuit, and the static transfer switch all being controlled by the control circuit,
wherein the UPS control circuit further comprises a multipurpose DC/DC circuit connected between an output terminal of the rectification circuit and the rechargeable battery, the multipurpose DC/DC circuit is connected with and controlled by the control circuit, so that in a battery mode, the rechargeable battery supplies an input voltage to the inversion circuit via the multipurpose DC/DC circuit; - and in a mains power mode, the rechargeable battery is charged by an output voltage of the rectification circuit via the multipurpose DC/DC circuit.
- View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
Specification