Comparator

Details Comparator Comparator

2008-09-19

2010-11-09

Nguyen, Hai L (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S050000

Reexamination Certificate

active

07830182

ABSTRACT:
A comparator has P-channel field effect transistors that are supplied at respective gates with input voltages Vin and Vref, which are objects of comparison, and that act as a differential transistor pair; and N-channel field effect transistors that serve as current channels for respective drain currents of these two P-channel field effect transistors and that act as a current mirror circuit. The comparator outputs a drain voltage Vx of an N-channel field effect transistor as a signal showing a result of comparison between the two input voltages. An N-channel field effect transistor diode-connected to the comparator is interposed between drains of the N-channel field effect transistors.

REFERENCES:
patent: 4511810 (1985-04-01), Yukawa
patent: 5600280 (1997-02-01), Zhang
patent: 6894542 (2005-05-01), Prexl et al.
patent: 7109761 (2006-09-01), Isomura
patent: 7417471 (2008-08-01), Gong et al.
patent: S62-127128 (1987-08-01), None
patent: 05-157774 (1993-06-01), None
patent: 07-092203 (1995-04-01), None
patent: 09-105763 (1997-04-01), None
patent: 2000-165213 (2000-06-01), None
patent: 2005-244439 (2005-09-01), None
patent: 2007-142709 (2007-06-01), None
Japanese Patent Office, Notification of Reason for Refusal of Application No. 2007-241789 (Dispatch Date: Jul. 28, 2009; 3 pgs.).

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