Reference voltage generator for hysteresis circuit

Details Reference voltage generator for hysteresis circuit Reference voltage generator for hysteresis circuit

2005-08-23

2005-08-23

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Particular stable state circuit

C327S408000, C327S543000, C323S313000

Reexamination Certificate

active

06933760

ABSTRACT:
A voltage reference generator for a hysteresis circuit, comprising a first originator circuit to generate a first reference voltage; a second originator circuit to generate a second reference voltage; and a selector circuit, coupled to the first and second originator circuits, to select one of the first and second reference voltages to be an output reference voltage based upon an input signal to the hysteresis circuit undertaking a low-to-high or a high-to-low signal transition respectively. The first originator circuit includes a first plurality of channel devices selected from either p-channel devices or n-channel devices and the second originator circuit includes a second plurality of channel devices selected from the other one of the p-channel devices and the n-channel devices.

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patent: 6628108 (2003-09-01), Taub et al.
patent: 6781428 (2004-08-01), Chao et al.

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