Voltage-to-current converter circuit

Details Voltage-to-current converter circuit Voltage-to-current converter circuit

1984-06-19

1986-10-21

Leung, Philip H.

Electricity: power supply or regulation systems

Output level responsive

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

323281, 330 75, 307353, 363 73, G05F 144

Patent

active

046188142

ABSTRACT:
A voltage-to-current converter circuit for outputting a current accurately proportional to the input signal voltage, which converter circuit includes an operational amplifier for providing an output corresponding to a difference between the input signal and a feedback signal, and includes a feedback circuit for detecting the output current in the form of a voltage by making the output current flow through the reference resistor and for feeding back the detected voltage. Further, the feedback circuit includes a polarity inverting circuit which holds the voltage detected by the reference resistor and inverts the polarity of the voltage, and then feeds back to the operational amplifier.

REFERENCES:
patent: 3546564 (1970-12-01), Denny
patent: 3654545 (1972-04-01), Demark
patent: 3838346 (1974-09-01), Cox
patent: 4048525 (1977-09-01), Goldberg et al.
patent: 4367437 (1983-01-01), Mikami
patent: 4370571 (1983-01-01), Andow et al.
patent: 4451779 (1984-05-01), Griep

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