Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2006-09-05
2006-09-05
Cunningham, Terry D. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S537000, C363S060000
Reexamination Certificate
active
07102423
ABSTRACT:
A voltage boosting circuit and a method of generating a boosting voltage alleviate deterioration of a driver transistor caused by high voltage stress when the level of an external supply voltage is high. The voltage boosting circuit includes boosting capacitors and switches. The boosting capacitors include a first boosting capacitor connected to a driving node and a last boosting capacitor that outputs the boosting voltage. The switches connect the boosting capacitors in series in response to a control signal. The boosting voltage increases or decreases as the voltage level at the driving node changes according to the logic state of a boosting level control signal. The boosting level control signal is responsive to the external supply voltage level. An external supply voltage detector detects the level of external supply voltage level and generates the boosting level control signal.
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English language abstract of Japanese Publication No. 7-111095.
Lee Seung-Hoon
Sim Jae-Yoon
Cunningham Terry D.
Marger & Johnson & McCollom, P.C.
Samsung Electronics Co,. Ltd.
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