System and method of monitoring fuses
AssigneeDelta Electronics (Shanghai) Co., Ltd.
InventorsBing Jiao, Jun Chen, Zhizhen Lian
Life of this patent
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Abstract
The present disclosure provides a system of monitoring fuses of a power conversion device. The power conversion device includes a first port, a first fuse and a converter. The first fuse is electrically coupled to the first port and a first safety circuit. The converter includes a first power terminal and a second fuse, and the second fuse is electrically coupled to the first port and the first power terminal. The system includes a first detection circuit and a second detection circuit. The first detection circuit is electrically coupled to the first fuse for detecting a first electrical signal. The second detection circuit is electrically coupled to the second fuse for detecting a second electrical signal.
Claims17
A system of monitoring fuses of a power conversion device, wherein the power conversion device comprises a first port, a first fuse and a converter, a first terminal of the first fuse is electrically coupled to the first port, a second terminal of the first fuse is directly electrically coupled to a first terminal of a first safety circuit, a second terminal of the first safety circuit is coupled to a reference potential, the converter comprises a first power terminal and a second fuse, a first terminal of the second fuse is electrically coupled to the first port, and a second terminal of the second fuse is electrically coupled to the first power terminal;
- and wherein the system comprises:
- a first detection circuit, electrically coupled to the second terminal of the first fuse for detecting a first electrical signal;
- and
- a second detection circuit, electrically coupled to the second terminal of the second fuse for detecting a second electrical signal.
A method of monitoring fuses of a power conversion device, wherein the power conversion device comprises a first port, a first fuse and a converter, a first terminal of the first fuse is electrically coupled to the first port, a second terminal of the first fuse is directly electrically coupled to a first terminal of a first safety circuit, a second terminal of the first safety circuit is coupled to a reference potential, the converter comprises a first power terminal and a second fuse, a first terminal of the second fuse is electrically coupled to the first port, and a second terminal of the second fuse is electrically coupled to the first power terminal;
- wherein the method is performed by a system comprising a first detection circuit electrically coupled to the second terminal of the first fuse, a second detection circuit electrically coupled to the second terminal of the second fuse, and a master control circuit electrically connected to the first detection circuit and the second detection circuit;
- and wherein the method comprises:
- (a) the first detection circuit detecting a first electrical signal, wherein the first electrical signal is a signal of the second terminal of the first fuse;
- (b) the second detection circuit detecting a second electrical signal, wherein the second electrical signal is a signal of the second terminal of the second fuse;
- and
- (c) the master control circuit determining states of the first fuse and the second fuse according to the first electrical signal and the second electrical signal.
Dependencies are inferred from the claim text.