CURRENT DETECTION PRINTED BOARD, VOLTAGE DETECTION PRINTED BOARD, CURRENT/VOLTAGE DETECTION PRINTED BOARD, CURRENT/VOLTAGE DETECTOR, CURRENT DETECTOR AND VOLTAGE DETECTOR
First Claim
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1. A current detection printed board comprising:
- a board formed with a cutout having a substantially semicircular shape and adapted to be disposed adjacent to a conductor in which an AC current flows;
a first current transformer consisting of a first single wire extending at a periphery of the cutout while penetrating a first layer of the board and alternately passing over a front face and a rear face of the first layer;
a second current transformer consisting of a second single wire extending at the periphery of the cutout while penetrating a second layer of the board and alternately passing over a front face and a rear face of the first layer;
a first terminal electrically connected to a first end of the first current transformer;
a second terminal electrically connected to a second end of the first current transformer;
a third terminal electrically connected to a first end of the second current transformer; and
a fourth terminal electrically connected to a second end of the second current transformer;
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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.
19 Citations
14 Claims
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1. A current detection printed board comprising:
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a board formed with a cutout having a substantially semicircular shape and adapted to be disposed adjacent to a conductor in which an AC current flows; a first current transformer consisting of a first single wire extending at a periphery of the cutout while penetrating a first layer of the board and alternately passing over a front face and a rear face of the first layer; a second current transformer consisting of a second single wire extending at the periphery of the cutout while penetrating a second layer of the board and alternately passing over a front face and a rear face of the first layer; a first terminal electrically connected to a first end of the first current transformer; a second terminal electrically connected to a second end of the first current transformer; a third terminal electrically connected to a first end of the second current transformer; and a fourth terminal electrically connected to a second end of the second current transformer; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification
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Current AssigneeDaihen Corporation
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Original AssigneeDaihen Corporation
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InventorsITO, Hideo, OMAE, Shuji, IBUKI, Yoshifumi
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Application NumberUS12/822,384Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current324/127CPC Class CodesG01R 15/142 Arrangements for simultaneo...G01R 15/18 using inductive devices, e....G01R 15/181 using coils without a magne...
