Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Patent
1996-02-14
1997-11-25
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
327 96, G11C 2702
Patent
active
056916574
ABSTRACT:
A sample-and-hold circuit comprises an analog signal control circuit for supplying a potential of an input signal to one end of a hold capacitor, a first transistor having a base connected to the one end of the hold capacitor and operating in an emitter follower fashion, an amplifier having a second transistor having a base connected to an emitter of the first transistor, and a leak current compensating circuit including a third transistor having an emitter connected to a collector of the first transistor and a current mirror circuit for supplying to the base of the first transistor the same current as a base current of the third transistor.
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patent: 5463345 (1995-10-01), Nagahori et al.
patent: 5467035 (1995-11-01), Ohi et al.
patent: 5473273 (1995-12-01), Werner, Jr. et al.
Hirano Yoji
Ueda Goro
Callahan Timothy P.
NEC Corporation
Nu Ton My-Trang
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