发明名称 COIL PARTS HAVING CURRENT DETECTION FUNCTION
摘要 <p>PROBLEM TO BE SOLVED: To make an electronic circuit a small size and light weight by taking out as an electric signal with a rod shaped coil the change in a magnetic flux excited by the change in a current flowing through a winding of a loop coil, by inserting a rod shaped coil wound around a winding into a central part of the loop coil around which the winding is wound. SOLUTION: A rod antenna coil 20 is inserted into a central part of a troidal choke coil 10. In the antenna coil 20 a winding 20b is wound on a rod shaped core 20a spirally longitudinally thereof. In the choke coil 10 the winding 10b is spirally wound with a loop direction of the troidal core 10a or a central axis direction of the core taken as the center of winding, but the construction can be regarded in a macroscopic manner to be a one thick winding. Thus, the change in a magnetic flux excited by the change in a current flowing through the winding 10b of the choke coil 10 can be taken out as an electric signal through the antenna coil 20.</p>
申请公布号 JPH09326323(A) 申请公布日期 1997.12.16
申请号 JP19960144396 申请日期 1996.06.06
申请人 FUJI ELELCTROCHEM CO LTD 发明人 OSAKI MASAYASU;SHIMIZU ISAO
分类号 G01R15/18;G01R19/00;H01F38/28;(IPC1-7):H01F38/28 主分类号 G01R15/18
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