POWER SUPPLY DEVICE OUTPUTTING PULSED ELECTRICAL CURRENT
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United States of America Patent
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Issued Date -
Jul 30, 2009
app pub date -
Jan 29, 2008
filing date -
Jan 29, 2008
priority date (Note) -
Abandoned
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Abstract
The power supply device of the present invention which outputs pulsed electrical current includes an inverter which converts an input voltage to high frequency AC, a rectifier which rectifies the output of the inverter and converts it to DC, and an output polarity changeover unit which, via a reactor, alternatingly turns ON and OFF the output at a positive electrode side of the rectifier and the output at a negative electrode side thereof. Moreover, this power supply device includes a current transformer including a closed magnetic circuit or coil, pierced by a first output current line in which the current at the positive electrode flows, and by a second output current line in which the current at the negative electrode flows. The directions of piercing of the output current lines through the current transformer are set so that the directions in the current transformer, in which current flows in the first and second output current lines, are the same.
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