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System and method for increased impedance sensing
专利权人:
コヴィディエン リミテッド パートナーシップ
发明人:
ジェイムス エー. ギルバート,ジェイムス エー. ギルバート
申请号:
JP2010181153
公开号:
JP5695860B2
申请日:
2010.08.12
申请国别(地区):
JP
年份:
2015
代理人:
摘要:
An impendance monitoring circuit for an electrosurgical generator is disclosed. The monitoring circuit includes an isolation transformer coupled to at least one of an active terminal and a return terminal of an electrosurgical generator, wherein the isolation transformer includes a primary winding coupled to a reference resistor and a secondary winding coupled to a load. The monitoring circuit also includes a driver configured to transmit a sensor signal to the reference resistor and the load, a primary converter coupled to the reference resistor and the load and configured to detect a primary converted signal as a function of the sensor signal passing through the reference resistor and the load. The monitoring circuit further includes a secondary converter coupled to the driver and configured to detect a secondary converted signal as a function of the sensor signal prior to passing through the reference resistor and the load and a controller configured to determine a fault condition based on the primary and secondary converted signals.
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中国工程科技知识中心
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