ROBERT B. SMITH,STEVEN C. RUPP,DANIEL A. FRIEDRICHS
申请号：
US15180180
公开号：
US20170354455A1
申请日:
2016.06.13
申请国别(地区):
US
年份:
2017
代理人:
摘要：
An electrosurgical generator includes: a power supply configured to output a direct current； a current source coupled to the power supply and configured to output source current based on the direct current, and a power converter coupled to the current source, the power converter including at least one power switching element operated at a switching waveform. The power converter is configured to generate a converted waveform based on the source current. The electrosurgical generator also includes a controller coupled to the power converter and configured to modulate the switching waveform and a snubber circuit coupled to the current source and the power converter. The snubber circuit is configured to return the voltage at the at least one power switching element to zero after the power converter generates at least a portion of the converted waveform.
