Amplifiers – Signal feedback – From impedance in series with output load
Patent
1996-06-14
1998-08-18
Mottola, Steven
Amplifiers
Signal feedback
From impedance in series with output load
330109, 381121, H03F 134
Patent
active
057963053
ABSTRACT:
A circuit for increasing damping factor in an audio amplifier adapted to be coupled to a load by output feed and return leads and components having an impedance causing a reduction in the damping factor, employs a balanced feedback network having first and second inputs and first and second outputs. The first input is coupled to a selected one of the feed and return lead near the output terminal and the second input is coupled to the same lead remote from the output terminal to thereby establish a series impedance between said first and second inputs representative of impedance of the selected output lead. The first output is coupled to the non-inverting input of the amplifier and the second output is coupled to the inverting input of the amplifier. The balanced feedback network positively feeds back a representation of the impedance to compensate therefor and thereby raise the damping factor of the amplifier. In an alternative embodiment, an isolating transformer is employed in the balanced feedback network.
REFERENCES:
patent: 3838352 (1974-09-01), Dolby et al.
patent: 4042889 (1977-08-01), Baker
patent: 4236118 (1980-11-01), Turner
patent: 4260954 (1981-04-01), Crooks
patent: 4320351 (1982-03-01), Brown, Jr. et al.
patent: 4482866 (1984-11-01), Crooks
patent: 5197102 (1993-03-01), Sondemeyer
patent: 5245296 (1993-09-01), Miller et al.
patent: 5268527 (1993-12-01), Waller, Jr.
Mottola Steven
Peavey Electronics Corporation
LandOfFree
Amplifier arrangements with high damping factor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Amplifier arrangements with high damping factor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplifier arrangements with high damping factor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1118190