Re-referencing a reference voltage

Details Re-referencing a reference voltage Re-referencing a reference voltage

2004-10-29

2008-12-30

Vu, Bao Q (Department: 2838)

Electricity: power supply or regulation systems

Self-regulating

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

C323S314000, C323S315000, C323S316000

Reexamination Certificate

active

07471074

ABSTRACT:
An apparatus includes a first voltage reference circuit, a second voltage reference circuit and a third circuit that is coupled to the second voltage reference circuit. The first voltage reference circuit provides a first reference voltage between a terminal of the first voltage reference circuit and a first power line. The second voltage reference circuit provides a second reference voltage between a terminal of the second voltage reference circuit and a second power line that is separate from the first power line. The third circuit is coupled to the second voltage reference circuit to establish a magnitude of the second reference voltage in response to a potential difference between the terminal of the first voltage reference circuit and the second power line.

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