Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1996-12-03
1998-09-08
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327530, 327543, G05F 110
Patent
active
058050108
ABSTRACT:
A low-current source circuit for generating a constant current and a reference voltage from a fluctuating voltage source is disclosed. A resistive circuit is electrically connected to the voltage source for determining amount of the constant current. A charging circuit is electrically connected to a second lead of the resistive circuit and the voltage source for supporting a charging path for the voltage source. A current output circuit is electrically connected to the second lead of the resistive circuit for outputting the constant current. A stabilizing circuit is electrically connected between the second lead of the resistive circuit and a control lead of the current output circuit for stabilizing the current output circuit. A reference voltage circuit is electrically connected to an output lead and the control lead of the current output circuit for generating the reference voltage.
REFERENCES:
patent: 5017858 (1991-05-01), Hayashi
patent: 5530397 (1996-06-01), Nakai et al.
Callahan Timothy P.
Powerchip Semiconductor Corp.
Zweizig Jeffrey
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