Current reference circuit with voltage-to-current converter...

Details Current reference circuit with voltage-to-current converter... Current reference circuit with voltage-to-current converter...

2006-09-05

2006-09-05

Vu, Bao Q. (Department: 2838)

Electricity: power supply or regulation systems

Self-regulating

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

C323S313000, C323S277000

Reexamination Certificate

active

07102342

ABSTRACT:
A current reference circuit has a band gap voltage generating circuit, a voltage buffer, a voltage-to-current converting circuit and an auto-tuner. The band gap voltage generating circuit generates a band gap reference voltage. The voltage buffer generates a first bias voltage and a second bias voltage. The voltage-to-current converting circuit generates a source current in response to a tuning voltage. The auto-tuner generates the tuning voltage to maintain a transconductance. Thus, the current reference circuit may automatically adjust the transconductance, so that the current reference circuit may supply the source current that is stable against temperature and process variations.

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patent: 1999-0051452 (1999-07-01), None

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