Electrosurgical generator and method with voltage and frequency regulated high-voltage current mode power supply
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United States of America Patent
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Sep 6, 2005
Grant Date -
May 20, 2004
app pub date -
Nov 19, 2002
filing date -
Nov 19, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
DC input energy is converted into DC output voltage 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 into the DC output voltage. The time widths of the input current pulses are regulated relative to the DC input and output voltages, the magnitude of the current within each input current pulse, and in relation to maintaining a plurality of different selected operational conditions. The rate at which the input current pulses are converted is changed relative to the level of the DC output voltage.
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