Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2007-08-07
2007-08-07
Riley, Shawn (Department: 2838)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S535000
Reexamination Certificate
active
11430086
ABSTRACT:
A supply voltage bias circuit includes: an output circuit which comprises a first transistor having a terminal from which output voltage or output current is supplied, the output voltage and output current having values proportional to a supply voltage at a supply line; a second transistor forming a current mirror circuit together with the first transistor, the second transistor being connected to a first connection node; a third transistor connected to the first connection node; and a current source connected between the first connection node and the supply line. Drains of the second and third transistors or sources of the second and third transistors are commonly connected to the first connection node. The drains or sources of the second and third transistors which are not connected to the first connection node are grounded or earthed. The first connection node is connected to a gate of the third transistor and is functioning as an output terminal of the bias circuit.
REFERENCES:
patent: 6124753 (2000-09-01), Pease
patent: 6259307 (2001-07-01), Aram
patent: 6580261 (2003-06-01), Dow
patent: 10-200339 (1998-07-01), None
Nixon & Peabody LLP
Oki Electric Industry Co. Ltd.
Riley Shawn
Studebaker Donald R.
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