Voltage current converter circuit

Details Voltage current converter circuit Voltage current converter circuit

1981-06-24

1984-01-24

Anagnos, Larry N.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307497, 307297, 330253, H03K 524, H03F 345

Patent

active

044279035

ABSTRACT:
A linear voltage-current converter circuit having a simplified circuit structure and operable over a wide voltage range is disclosed. The circuit comprises a first transistor having a drain connected to a power voltage through a first load element, a second and a third transistor having drains connected to the power voltage through a second load element, means for supplying gates of the first and second transistor with voltage signal, means responsive to a voltage difference at drains of the first and second transistors for controlling a gate voltage of the third transistor so as to reduce the voltage difference to zero, an output transistor, and means for supplying a gate of the output transistor with the same voltage as the gate voltage of the third transistor.

REFERENCES:
patent: 3975648 (1976-08-01), Tobey, Jr. et al.
patent: 4050030 (1977-09-01), Russell
patent: 4301421 (1981-11-01), Yokoyama
patent: 4341963 (1982-07-01), Jenson et al.
patent: 4371843 (1983-02-01), Fang et al.

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