System, circuit, and method for auto-zeroing a bandgap...

Details System, circuit, and method for auto-zeroing a bandgap... System, circuit, and method for auto-zeroing a bandgap...

2007-01-09

2007-01-09

Sterrett, Jeffrey (Department: 2838)

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

Reexamination Certificate

active

10853468

ABSTRACT:
A circuit includes a bandgap core coupled to an input voltage and capable of producing an output voltage. The circuit also includes an amplifier coupled to the bandgap core. In addition, the circuit includes a switch coupling the bandgap core to an output terminal. The switch is capable of being closed to provide the output voltage to the output terminal. The switch is also capable of being opened during auto-zeroing of the amplifier.

REFERENCES:
patent: 4375595 (1983-03-01), Ulmer et al.
patent: 4857823 (1989-08-01), Bitting
patent: 5867012 (1999-02-01), Tuthill
patent: 5973487 (1999-10-01), Henry
patent: 6201379 (2001-03-01), MacQuigg et al.
patent: 7009373 (2006-03-01), Garavan

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