Patent ID: 8409186
Filing Date: 2013-04-02
Classification: A61B,H03F

Abstract:
1. An electrosurgical generator, comprising: a controller configured to generate: a first pulse train including at least one first control pulse and at least one first reset pulse; and a second pulse train including at least one second control pulse and at least one second reset pulse, wherein the at least one first control pulse and the at least one second control pulse are asynchronous and the at least one first reset pulse and the at least one second reset pulse are synchronous; and an RF output stage including a first switching element and a second switching element, wherein the at least one first control pulse and the at least one second control pulse are configured to activate the first and second switching elements asynchronously to generate a non-continuous RF waveform, and wherein the at least one first reset pulse and the at least one second reset pulse are configured to synchronously activate the first and second switching elements, respectively, to reset the RF output stage; and a crest factor detection circuit configured to determine a crest factor of the non-continuous RF waveform and adjust at least one property of each of the plurality of the first and second reset pulses based on the crest factor.