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Reduction of endoscope high frequency leakage current using a common-mode choke
Reduction of endoscope high frequency leakage current using a common-mode choke
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机译:使用共模扼流圈减少内窥镜高频漏电流
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摘要
An endoscope includes a body and a circuit board mounted within the body. A cable couples the circuit board to an imaging system. A common-mode choke is mounted within the body and is configured to electrically isolate the cable from the body at cautery frequencies. A method includes twisting a plurality of wires together to form a twisted set of wires. The twisted set of wires is wound around a core so that windings do not overlap, and so that a first winding and a last winding are separated from each other. Wires in the twisted set of wires are coupled to a plurality of wires in the cable. Also, these wires in the twisted set of wires are also coupled to the circuit board.
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