Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Patent
1994-11-01
1997-10-14
Wambach, Margaret Rose
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
327110, 327170, 327321, 327322, 327380, H03K 1908
Patent
active
056776420
ABSTRACT:
A signal generator and method that is tolerable to supply voltage fluctuations and differentials. A current switch is driven that is independent of the supply voltage. By clamping the slewing voltage at the gate of a transistor driver, the difference between the clamped gate voltage and the threshold turn on voltage of the driver will be constant with respect to the supply voltage. This will cause the transition edges of the driver's output voltage to be constant with respect to the supply voltage. This technique minimizes variations in the output signal edge transitions as the supply voltage varies over various tolerance ranges. Because this technique increases the control of the transition edges in the output signal, it is possible to generate much slower edges and still maintain a consistent transition voltage shape with variations in the supply voltage and the symbol width.
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Callahan Phillip A.
Rehm Dennis J.
AT&T Global Information Solutions Company
Bailey Wayne P.
Hyundai Electronics America
Symbios Logic Inc.
Wambach Margaret Rose
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