Photovoltaic inverter
AssigneeDelta Electronics, Inc.
InventorsChun-Wei Wu, Hung-Chuan Lin
Life of this patent
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Abstract
A photovoltaic inverter includes a casing, at least one circuit board located in the casing, a current sensor located on the at least one circuit board, an arc detector located on the at least one circuit board, a self-test coil located on the at least one circuit board, and at least one direct current input terminal located on the casing and connected to the at least one circuit board, wherein the self-test coil is configured to deliver a test signal to be sensed by the arc detector, and the direct current input terminal is configured to deliver a direct current through the arc detector, wherein the current sensor is configured to detect a magnitude of the direct current passing through the direct current input terminal.
Claims18
A photovoltaic inverter comprising:
- a casing;
- at least one circuit board disposed in the casing;
- a current sensor disposed on the at least one circuit board;
- an arc detector disposed on the at least one circuit board;
- a self-test coil disposed on the at least one circuit board;
- at least one direct current input terminal disposed on the casing and connected to the at least one circuit board, wherein the self-test coil is configured to deliver a test signal to be sensed by the arc detector, and the direct current input terminal is configured to deliver a direct current through the arc detector, wherein the current sensor is configured to detect a magnitude of the direct current passing through the direct current input terminal;
- and
- a first helical coil formed by the arc detector and a second helical coil formed by the self-test coil in the at least one circuit board are coaxial.
A photovoltaic inverter comprising:
- a casing;
- at least one circuit board disposed in the casing;
- an arc detector disposed on the at least one circuit board;
- a self-test coil disposed on the at least one circuit board;
- at least one direct current input terminal disposed on the casing and connected to the at least one circuit board, wherein the self-test coil is configured to deliver a test signal to be sensed by the arc detector, and the direct current input terminal is configured to deliver a direct current through the arc detector;
- and
- a first helical coil formed by the arc detector and a second helical coil formed by the self-test coil in the at least one circuit board are coaxial.
Dependencies are inferred from the claim text.