Voltage-controlled resistance element with superior dynamic rang

Details Voltage-controlled resistance element with superior dynamic rang Voltage-controlled resistance element with superior dynamic rang

1992-02-04

1993-11-23

Skudy, R.

Electricity: power supply or regulation systems

External or operator controlled

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

323313, G05B 2402

Patent

active

052647854

ABSTRACT:
An MOS voltage-controlled resistor is disclosed. The voltage-controlled resistor comprises a first triode MOSFET, a second triode MOSFET, and a single diode connected MOSFET. The single diode connected MOSFET is coupled in series with the first triode MOSFET. These two MOSFETs in series, are in turn, coupled in parallel with the second triode MOSFET. A control voltage, V.sub.CONTROL, is applied from the gates to the sources of the first and second triode MOSFETs. A voltage-controlled resistance can then be measured between the two nodes defining the parallel coupling of, the single diode connected MOSFET in series with the first triode MOSFET, with the second triode MOSFET.

REFERENCES:
patent: 3761741 (1973-09-01), Hoeft
patent: 4333047 (1982-06-01), Flink
patent: 4339677 (1982-07-01), Hoeft
patent: 4700124 (1987-10-01), Andersen
patent: 5120994 (1992-06-01), Joly

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