Variable-capacitance power supply apparatus
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United States of America Patent
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Oct 22, 1996
Grant Date -
N/A
app pub date -
Sep 28, 1994
filing date -
Oct 15, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A variable-capacitance power supply apparatus has an inexpensive structure for variably supplying a desired high power to a load by selecting an appropriate total capacitance for storing charge. A number 'n' (an arbitrary integer) of series-coupled capacitors each having capacitance C are independently charged to produce an appropriate output voltage. The total capacitance Cs of the series-coupled capacitors is obtained as Cs=C/n. The total charge Q stored in the series-coupled capacitors is proportional to the total capacitance Cs. The series-coupled capacitors are selectively charged to produce an appropriate output voltage and the desired high power to be supplied to the load.
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