Electric power conversion systems – Current conversion – Constant current to constant voltage or vice versa
Patent
1998-10-08
2000-05-02
Wong, Peter S.
Electric power conversion systems
Current conversion
Constant current to constant voltage or vice versa
323315, 323313, 323300, H02M 700, G05F 316, G05F 304
Patent
active
06058033&
ABSTRACT:
A voltage to current (V-I) converter includes a low pass filter, a first converting element, a second converting element, and an output. The low pass filter receives an input voltage signal and outputs a filtered voltage signal. The output of the low pass filter is fed to the first converting element, which converts the filtered voltage signal into a corresponding output current which is fed to the output of the V-I converter. Preferably, the voltage to current gain of the first converting element is high. The low pass filter and the first converting element form a low frequency or DC signal path. The V-I converter further includes a second converting element, which receives the input voltage signal and converts it into a corresponding output current which is also fed to the output of the V-I converter. This current is combined with the output current from the first converting element to produce an overall output current. Preferably, the second converting element has a substantially flat frequency response and a low voltage to current gain relative to the voltage to current gain of the first converting element. The second converting element forms the high frequency or alternating current (AC) signal path. By implementing a high gain on the low frequency path and a low gain on the high frequency path, the high frequency noise components are insignificant relative to the low frequency components. Thus, a relatively mall input voltage range is converted into a relatively large output current range without suffering increased sensitivity to noise.
REFERENCES:
patent: 5459653 (1995-10-01), Seto et al.
patent: 5619125 (1997-04-01), Lakshmikumar
patent: 5754039 (1998-05-01), Nishimura
patent: 5815390 (1998-09-01), Lakshmikumar
Henricks Timothy
Hufford Michael
Naviasky Eric
Williams Stephen T.
Cadence Design Systems Inc.
Truong Bobby K.
Vu Bao Q.
Wong Peter S.
LandOfFree
Voltage to current converter with minimal noise sensitivity 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 minimal noise sensitivity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage to current converter with minimal noise sensitivity will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1599046