System and method for high frequency leakage reduction through selective harmonic elimination in electrosurgical generators

An electrosurgical system, comprising:

• a electrosurgical generator including:
• a power supply configured to output a direct current (DC) waveform;
• an inverter coupled to the power supply, the inverter including a plurality of switching elements;
• and
• a controller coupled to the inverter and configured to independently control each of a fundamental frequency and harmonics thereof, wherein the controller is configured to generate a switching angle waveform including a plurality of switching pulses, the controller further configured to modulate a switching frequency and a duty cycle per switching period of the plurality of switching pulses to activate the plurality of switching elements to generate a radio frequency waveform based on the DC waveform and to minimize the harmonics of the fundamental frequency of the radio frequency waveform;
• and
• an electrosurgical instrument configured to couple to the inverter and to transmit the radio frequency waveform.