Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2011-06-07
2011-06-07
Hiltunen, Thomas J (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C363S060000
Reexamination Certificate
active
07956675
ABSTRACT:
A charge pump circuit is provided. A voltage/current conversion circuit compares a feedback voltage that corresponds to the output voltage of the charge pump circuit with a predetermined reference voltage, and generates a bias current that corresponds to the difference therebetween. An oscillator oscillates at a frequency that corresponds to the bias current. A buffer is biased by the bias current, and supplies a gate clock to the charge pump circuit based upon a clock signal output from the oscillator, thereby driving the charge pump circuit.
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Saitoh Shinichi
Yamashiro Yo
Cantor & Colburn LLP
Hiltunen Thomas J
Rohm & Co., Ltd.
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