An electrosurgical generator, comprising: a power supply configured to output DC energy; a plurality of RF amplifiers (228a, 228b) coupled to the power supply, each of the plurality of RF amplifiers being configured to convert DC energy from the power supply into an RF waveform, thereby generating a plurality of RF waveforms (602, 604); a first output (230a, 232a) coupled to a first of the plurality of RF amplifiers, the first output for coupling to a first electrosurgical instrument, the first output for supplying a first of the plurality of RF waveforms to the first electrosurgical instrument; a second output (230b, 232b) coupled to a second of the plurality of RF amplifiers, the second output for coupling to a second electrosurgical instrument, the second output for supplying a second of the plurality of RF waveforms to the second electrosurgical instrument; further comprising a plurality of sensors (280a, 280b) coupled to the plurality of RF amplifiers, each of the plurality of sensors configured to measure at least one property of a corresponding RF waveform of the plurality of RF waveforms supplied by a corresponding RF amplifier of the plurality of RF amplifiers; and a controller coupled to the power supply, the plurality of RF amplifiers and the plurality of sensors and being configured to control the plurality of RF amplifiers based on the at least one property of the corresponding RF waveform to control the plurality of RF amplifiers to interdigitate the RF waveforms generated by the plurality of RF amplifiers such that the power draw of the RF amplifiers from the power supply is substantially constant. a power supply configured to output DC energy; a plurality of RF amplifiers (228a, 228b) coupled to the power supply, each of the plurality of RF amplifiers being configured to convert DC energy from the power supply into an RF waveform, thereby generating a plurality of RF waveforms (602, 604); a first output (230a, 232a) coupled to a first of the plurality of RF amplifiers, the first output for coupling to a first electrosurgical instrument, the first output for supplying a first of the plurality of RF waveforms to the first electrosurgical instrument; a second output (230b, 232b) coupled to a second of the plurality of RF amplifiers, the second output for coupling to a second electrosurgical instrument, the second output for supplying a second of the plurality of RF waveforms to the second electrosurgical instrument; further comprising a plurality of sensors (280a, 280b) coupled to the plurality of RF amplifiers, each of the plurality of sensors configured to measure at least one property of a corresponding RF waveform of the plurality of RF waveforms supplied by a corresponding RF amplifier of the plurality of RF amplifiers; and a controller coupled to the power supply, the plurality of RF amplifiers and the plurality of sensors and being configured to control the plurality of RF amplifiers based on the at least one property of the corresponding RF waveform to control the plurality of RF amplifiers to interdigitate the RF waveforms generated by the plurality of RF amplifiers such that the power draw of the RF amplifiers from the power supply is substantially constant.