DC input energy is converted into DC output voltage which is used to create an output RF waveform for use in electrosurgery, by the use of a switched current mode high-voltage power supply. Pulses of input current are switched through a conversion transformer and the energy content of each pulse is converted...http://www.google.ca/patents/US20040095100?utm_source=gb-gplus-sharePatent US20040095100 - Electrosurgical generator and method with voltage and frequency regulated high-voltage current mode power supply