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US 8,427,134 B2Granted
Current detection printed board, voltage detection printed board, current/voltage detection printed board, current/voltage detector, current detector and voltage detector
AssigneeDAIHEN Corporation
InventorsYoshifumi Ibuki, Shuji Omae, Hideo Ito
Life of this patent
Estimating the term…
Abstract
A current detection printed board includes: a board having a penetration hole that penetrates the board; and at least one wire that is formed in a coiled shape having both ends by penetrating the board along the periphery of the penetration hole and alternately connecting a front surface layer and a rear surface layer of the board, wherein, when a conductor, in which an AC current flows, is disposed to pass through the inside of the penetration hole, a current flowing in the wire is output through electromagnetic induction.
Claims10
A voltage detection printed board comprising:
- a board having a cutout;
- a first pattern wire formed at a periphery of the cutout in an arc shape;
- a second pattern wire formed at the periphery of the cutout in an arc shape;
- and
- a plurality of through holes that penetrate the board between the first and second pattern wires,
- wherein, when a conductor, in which an AC voltage is generated, is disposed adjacent to the cutout, the first and second pattern wires and the through holes with the conductor form electrodes of a capacitor to detect the AC voltage generated in the conductor.
3 more elements
Dependencies are inferred from the claim text.