Electricity: power supply or regulation systems – Self-regulating – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2006-08-15
2006-08-15
Gray, David M. (Department: 2838)
Electricity: power supply or regulation systems
Self-regulating
Using a three or more terminal semiconductive device as the...
C323S313000
Reexamination Certificate
active
07091712
ABSTRACT:
A circuit (10, 100) is used to perform voltage regulation. In one embodiment, a voltage regulator (11) is used in conjunction with an output transistor (24) to form a circuit (10) which operates to regulate the voltage drop from a first node (30) to a second node (28). This second node (28) may be used to provide power to circuitry (27). The areas of several transistors (20–25) in circuit (10) may be adjusted so that negative and positive temperature coefficients may be balanced such that the circuit (10) behaves as desired over a range of voltages and temperatures. Note that in one embodiment, circuit (10) is a 2-terminal device.
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patent: 5859560 (1999-01-01), Matthews
patent: 5910749 (1999-06-01), Kimura
patent: 6351111 (2002-02-01), Laraia
Doyle, A CMOS Subbandgap Reference Circuit With 1-V Power Supply Voltage, IEEE Journal of Solid-State Circuits, vol. 39, No. 1, Jan. 2004, pp. 252-255.
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Banba, “A CMOS Bandgap Reference Circuit with Sub-1-V Operation,” IEEE Journal of Solid-State Circuits vol. 34, No. 5, May 1999, pp. 670-673.
Miller Ira G.
Thompsen Brett J.
Velarde, Jr. Eduardo
Clingan, Jr. James L.
Freescale Semiconductor Inc.
Gray David M.
Hill Susan C.
Muralidar Richard V.
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