Voltage level clamping circuit and comparator module

Details Voltage level clamping circuit and comparator module Voltage level clamping circuit and comparator module

2007-11-05

2010-02-02

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C327S322000

Reexamination Certificate

active

07656217

ABSTRACT:
A voltage level clamping circuit which can be implemented in an integrated circuit (IC) and a high-speed comparator module, wherein the IC includes a parasitic diode coupled between a first voltage source and a second voltage source. The voltage level clamping circuit includes a switch module coupled between the first voltage source and the second voltage source and a comparator module having an output terminal coupled to the switch module, a first input terminal coupled to the first voltage source, and a second input terminal coupled to the second voltage source, for comparing a voltage level of the first voltage source with a voltage level of the second voltage source to generate an output signal, and transmitting the output signal to the switch module to control a conducting state of the switch module to selectively clamp the voltage level of the second voltage source.

REFERENCES:
patent: 5764086 (1998-06-01), Nagamatsu
patent: 6111445 (2000-08-01), Zerbe
patent: 6324084 (2001-11-01), Fujisawa
patent: 6441596 (2002-08-01), Inoue et al.
patent: 7446575 (2008-11-01), Yano et al.
patent: 7514966 (2009-04-01), Ho
patent: 2 015 839 (1979-09-01), None

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