Window comparator of an A.C. voltage

Details Window comparator of an A.C. voltage Window comparator of an A.C. voltage

2007-04-18

2010-06-01

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S075000, C327S076000

Reexamination Certificate

active

07728633

ABSTRACT:
A window comparator of an A.C. input voltage, including, between two terminals of application of a voltage representative of the voltage to be measured, two first transistors of a first type, each first transistor being assembled as a current mirror on the second transistor having a first conduction terminal connected to one of the application terminals, the two second transistors having a second common conduction terminal; and two third transistors of a second type assembled as a current mirror between the common conduction terminal of the second transistors and a current source, a D.C. voltage being applied on a first terminal of the current source and an output signal being provided by a second terminal of the current source.

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French Search Report from corresponding French Application No. 06/51379, filed.
French Search Report from corresponding French Application No. 06/51379, Dec. 2006.
Djemouai A, et al.,New CMOS Current-Mode Amplitude Shift Keying Demodulator(ASKD)Dedicated For Implantable Electronic Devices, Circuits and Systems, 2004, ISCAS '04 Proceedings of the 2004 International symposium on Vancouver, BC, Canada May 23-26, 2004, Piscataway, NJ, IEEE, US May 23, 2004, pp. I-441, XP010719147.

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