Electricity: power supply or regulation systems – Self-regulating – Using a three or more terminal semiconductive device as the...
Patent
1986-07-01
1987-07-21
Wong, Peter S.
Electricity: power supply or regulation systems
Self-regulating
Using a three or more terminal semiconductive device as the...
323316, 307491, G05F 320, G05F 156
Patent
active
046820981
ABSTRACT:
A voltage-current converter includes a first current-source (I.sub.1) coupled by means of a diode-arranged first transistor (T.sub.1) to a first terminal (1) at reference potential and by means of a diode-arranged second transistor (T.sub.2) to a second terminal (2). The bases of a third (T.sub.3) and a fourth (T.sub.4) transistor are coupled to the first (1) and the second (2) terminal, respectively. The emitters of these transistors (T.sub.3,T.sub.4) are coupled to a second current source (I.sub.2). A voltage source (V) and a resistor (R.sub.1) for converting the voltage (V) into a signal current are arranged between the first (1) and the second (2) terminal. The signal current is amplified by the translinear-circuit of the first, second, third and fourth transistors (T.sub.1 -T.sub.4) and fed to the outputs (30,40) via cascode transistors (T.sub.9,T.sub.10). To correct the non-linearity in the voltage-current conversion due to the non-linear emitter resistors of the first (T.sub.1) and the second (T.sub.2) transistor, a correction circuit (5) having a negative input resistance is coupled to the first (1) and the second (2) terminal.
REFERENCES:
patent: 4268759 (1981-05-01), Gilbert
patent: 4354122 (1982-10-01), Embree et al.
patent: 4388539 (1983-06-01), Boeke
patent: 4550262 (1985-10-01), Kohsiek
patent: 4560920 (1985-12-01), Okanobu
Holle Eerke
Seevinck Evert
Wassenaar Roelof F.
Franzblau Bernard
Mayer Robert T.
U.S. Philips Corporation
Wong Peter S.
LandOfFree
Voltage-current converter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Voltage-current converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage-current converter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-209386