Voltage-current conversion circuit

Details Voltage-current conversion circuit Voltage-current conversion circuit

2000-02-24

2000-12-26

Nguyen, Matthew

Electricity: power supply or regulation systems

Self-regulating

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

G05F 316

Patent

active

061665290

ABSTRACT:
A voltage-current conversion circuit outputting a current corresponding to a difference between a first input voltage and a second input voltage, the voltage-current conversion circuit having a first current-mirror circuit supplied with the first input voltage as a power source and comprising at least one pair of transistors, a second current-mirror circuit supplied with the second input voltage as a power source and comprising at least one pair of transistors, a resistor connected between one of the pair of transistors of the first current-mirror circuit and one of the transistors of the second current-mirror circuit, and a third current-mirror circuit having a current source transistor supplying current to one of the pair of transistors of the first current-mirror circuit and another current source transistor supplying current to one of the pair of transistors of the second current-mirror circuit, a current output terminal being connected to one of the current source transistors.

REFERENCES:
patent: 4338527 (1982-07-01), Nagano
patent: 4560920 (1985-12-01), Okanobu
patent: 5519309 (1996-05-01), Smith
patent: 5629614 (1997-05-01), Choe et al.
patent: 5994887 (1999-11-01), Tokuda

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