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Class Information
Number: 330/105
Name: Amplifiers > Signal feedback > From impedance in series with output load (e.g., current feedback)
Description: Subject matter wherein the signal feedback is from an impedance in series with the output load which receives the amplified signal, whereby the signal feedback voltage is proportional to the current flowing in the output load.










Patents under this class:

Patent Number Title Of Patent Date Issued
8521105 Transmitter for transmitting a transmission signal Aug. 27, 2013
7949322 Frequency selective amplifier with wide-band impedance and noise matching May. 24, 2011
7679437 Split-feedback technique for improving load regulation in amplifiers Mar. 16, 2010
7512387 Method and control system for controlling the output power of an RF amplifier system Mar. 31, 2009
6501255 Differential current source with active common mode reduction Dec. 31, 2002
5815040 Wide bandwidth, current sharing, MOSFET audio power amplifier with multiple feedback loops Sep. 29, 1998
5796305 Amplifier arrangements with high damping factor Aug. 18, 1998
5781068 Transadmittance amplifier for a motor Jul. 14, 1998
5734728 Portable sound speaker system and driving circuit therefor Mar. 31, 1998
5719526 Internal load monitor for amplifier Feb. 17, 1998
5705951 Method for correction of error signals in a signal amplification system and an apparatus used for that purpose Jan. 6, 1998
5245296 Audio amplifier circuit and method of operation Sep. 14, 1993
5153499 Precision voltage controlled current source with variable compliance Oct. 6, 1992
5036228 Temperature compensation circuit for negative impedance driving apparatus Jul. 30, 1991
4897610 Negative-feedback amplifier with accurately defined input or output impedance combined with high or low output or input impedance respectively Jan. 30, 1990
4797933 Bass amplifier with high frequency response Jan. 10, 1989
4766396 Current source type current output circuit using current mirrors Aug. 23, 1988
4638258 Reference load amplifier correction system Jan. 20, 1987
4628275 Efficient power amplifier for high capacitive devices Dec. 9, 1986
4598212 Driver circuit Jul. 1, 1986
4482866 Reference load amplifier correction system Nov. 13, 1984
4340865 Electric amplifier circuits that respond to an input signal of either polarity to produce an output signal having a polarity corresponding to that of the input signal Jul. 20, 1982
4321552 Amplifier comprising a first and a second amplifier element Mar. 23, 1982
4290024 Voltage-to-current converter circuit Sep. 15, 1981
4274016 Voltage-to-current converter Jun. 16, 1981
4260954 Amplifier load correction system Apr. 7, 1981
4253070 Feedback arrangement Feb. 24, 1981
4236118 Stabilized remote sensing high fidelity apparatus Nov. 25, 1980
4223273 Power amplifying device for driving loudspeakers Sep. 16, 1980
4185249 Bipolar signal to current converter Jan. 22, 1980
4092494 Loud-speaker enclosure with electrical feed-back May. 30, 1978
4001703 Transmission line interface circuit Jan. 4, 1977
3972002 Dual feedback amplifier Jul. 27, 1976
3970953 Distortion-free amplifiers Jul. 20, 1976











 
 
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