Voltage-to-current converting circuit which has a wide control r

Details Voltage-to-current converting circuit which has a wide control r Voltage-to-current converting circuit which has a wide control r

1998-06-11

2000-11-28

Berhane, Adolf Deneke

Electricity: power supply or regulation systems

Self-regulating

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

G05F 304

Patent

active

061540161

ABSTRACT:
A voltage-to-current converter is implemented by a series of a load transistor, an output node and an n-channel depletion type field effect transistor applied with a voltage control signal; when the voltage control signal is zero, the n-channel enhancement type field effect transistor flows certain drain current equivalent to standard biasing current; when the voltage control signal is increased from zero to a positive level, the n-channel enhancement type depletion transistor immediately increases drain current so as to achieve a wide control range.

REFERENCES:
patent: 4675594 (1987-06-01), Reinke
patent: 5424681 (1995-06-01), Yotsuyanagi
patent: 5463308 (1995-10-01), Vorenkamp et al.
patent: 5552730 (1996-09-01), Deguchi
patent: 5610505 (1997-03-01), Bernardson et al.

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