An electrosurgical system includes an electrosurgical generator, a power source configured to deliver power to at least one load connected to the generator, a master configured to generate an initial pulse, and a plurality of slaves connected in series to the master. During analysis a device side of a semiconductor die containing the IC is maintained in an electrically-floating condition without any ground electrical connection while a charged particle beam is scanned over the device side. The ECU feedback-controls the DCDC converter by setting the voltage control value to a level of at least the output voltage of the subsidiary battery in response to completion of engine start-up. The cams are secured one after the other on the shaft.