Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Patent
1994-02-08
1995-08-08
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
327541, 327409, 327288, H03K 301
Patent
active
054402581
ABSTRACT:
An off-chip driver with regulated supplies compensates for power supply fluctuations. The circuit reduces di/dt noise by providing complementary voltage regulators to regulate the high and low supplies to the driver stages such that they see a constant operating voltage regardless of changes in supply voltage, V.sub.CC. The circuit uses two push-pull stages which charge and discharge the output load capacitance, C.sub.0. This regulated voltage to the driver stages reduces di/dt noise and provides a constant overdrive voltage, constant gate slew rate, and constant staging delay over a specified external supply voltage range.
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Galbi Duane E.
Houghton Russell J.
Killian Michael
Wilson Adam B.
Ahmed Adel A.
Callahan Timothy P.
Chadurijian Mark F.
International Business Machines - Corporation
Kim Jung Ho
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