Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Patent
1998-03-11
2000-05-09
Tso, Edward H.
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
323316, 363 73, G06F 140, G06F 320, H02M 700
Patent
active
060608706
ABSTRACT:
A voltage-current converter includes a signal voltage source (2), a series resistor (4) and an electronic circuit with a first transconductance amplifier (12) and a second transconductance amplifier (22). The corresponding inputs (16, 20; 24, 26) of the transconductance amplifiers (12, 22) are connected to receive a voltage difference (V.sub.A) between a node (18) and a reference terminal (8). The output (14) of the first transconductance amplifier (12) is connected to an input terminal (6) to which the series resistor (4) is connected as well. The output (25) of the second transconductance amplifier (22) is connected to an output terminal (10). Due to feedback around the first transconductance amplifier (12) an input current (i.sub.1) can flow into the input terminal (6). The input current (i.sub.1) is amplified or copied by the second transconductance amplifier (22) and is available at an output terminal (10). The input current (i.sub.1) is not only dependent on the series resistor (4), but also on the voltage difference (V.sub.A) between the node (18) and the reference terminal (8). The distortion caused by the voltage difference is cancelled by measuring (28) this voltage difference and adding (30) this voltage difference to the input voltage signal (V.sub.S) in the proper sense.
REFERENCES:
patent: 4682098 (1987-07-01), Seevinck et al.
patent: 5043652 (1991-08-01), Rybicki et al.
patent: 5493205 (1996-02-01), Gorecki
patent: 5497074 (1996-03-01), Boezen
patent: 5510738 (1996-04-01), Gorecki et al.
patent: 5574678 (1996-11-01), Gorecki
patent: 5617064 (1997-04-01), Gorecki
patent: 5619122 (1997-04-01), Kearney et al.
patent: 5666087 (1997-09-01), Gorecki
Biren Steven R.
Patel Rajnikant B.
Tso Edward H.
U.S. Philips Corporation
LandOfFree
Voltage-to-current converter with error correction 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-to-current converter with error correction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage-to-current converter with error correction will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1068412