Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2006-02-22
2008-09-02
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S541000
Reexamination Certificate
active
07420408
ABSTRACT:
A current control circuit with limiter includes a voltage follower as the output unit of the current control circuit, the voltage follower including a transistor, the circuit further including two operational amplifiers and two diodes. In a first operational amplifier, the non-inverting input receives an input voltage to the current control circuit and the inverting input receives the output of the voltage follower. In a second operational amplifier, the non-inverting input receives a predetermined voltage and the inverting input receives the output of the voltage follower. A first diode is connected between the output of the first operational amplifier and the input of the voltage follower. A second diode is connected between the output of the second operational amplifier and the input of the voltage follower.
REFERENCES:
patent: 5465039 (1995-11-01), Narita et al.
patent: 5625275 (1997-04-01), Tanikawa et al.
patent: 5698964 (1997-12-01), Kates et al.
patent: 5-6929 (1993-01-01), None
McGinn IP Law Group PLLC
NEC Corporation
Wells Kenneth B.
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