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AES E-Library » Current Dumping Audio Amplifier
https://www.aes.org/e-lib/browse.cfm?elib=2440#:~:text=Current%20Dumping%20Audio%20Amplifier%20A%20new%20audio%20amplifier,eliminated.%20Authors%3A%20Walker%2C%20P.%20J.%3B%20Albinson%2C%20M.%20P.
AES E-Library » Current Dumping Audio Amplifier
https://www.aes.org/e-lib/browse.cfm?elib=2440
Current Dumping Audio Amplifier A new audio amplifier output stage in which the linearity of the main current carrying output transistors has no bearing on the …
US8988145B2 - High fidelity current dumping audio ...
https://patents.google.com/patent/US8988145B2/en
The voltage structure of the amplifier contains an operational voltage amplifier, a low power amplifier operating in “A” class, and a power stage operating in “B” class. A high fidelity current...
Peter Walker’s ‘Current Dumping’ Amplifier from 1975
http://hifisonix.com/peter-walkers-current-dumping-amplifier-from-1975/
The famous Quad ‘Current Dumping’ amplifier launched in the mid 1970’s, and featured feed forward error correction that effectively removed the class B cross over distortion that plagues this type of output circuit structure. The design featured no adjustments in production, but the circuit components around the output (L2, R36, R38) had to be accurately …
The QUAD 405 Current Dumping Amplifier | Hifi Pig
https://hifipig.com/the-quad-405-current-dumping-amplifier/
Their current dumping philosophy has been handed down to later power amps, such as the 606 and now their Artera stereo amplifier. So, too will Peter J Walker live on in the minds of audiophiles. He might have met his grave in 2003 but his products, particularly those in the first 50 years before being sold to Verity Group and then IAG, will live on for ever, if perhaps needing …
Current Dumping Amplifier | diyAudio
https://www.diyaudio.com/community/threads/current-dumping-amplifier.243345/
Current Dumping Amplifier. Thread starter apexaudio; ... I've been trying to find the current dumping bridge elements and not sure which ones they are (apart from the obvious 1uH and R13 I believe). ... Current-dumping-audio-amplifier-A …
High Fidelity Current Dumping Audio Amplifier With ...
https://www.freepatentsonline.com/y2013/0181778.html
A symmetric current dumping audio amplifier circuit comprising: an operational amplifier having a non-inverting input and a inverting input, a positive bias port, a negative bias port and an output connected to the ground thru a resistor. a first low power amplifier in class “A” having an inverting input connected to the negative bias port of the said operational amplifier. a second low power …
Currentÿþýüßœøłÿ÷ýþœöÿ÷ ... - Audio Circuit
http://www.audiocircuit.com/A-PDF/AA-Brands/Q/Quad-QUA/Current-dumping-audio-amplifier-A-EN2-920-QUA.pdf
current with the values suggested will be 1.01 amps/volt because the second term in the brackets is zero (no I4 current from the dumpers). When half a volt or thereabouts appears across Z3, one or other of the dumpers Tr1 or Tr2 willbegintoturnonand pass some current I4 into the load. We have selected resistor values such that Z4Z2/Z1Z3 is
What is a "Current Dumping amp ... - Audiogon Marketplace
https://forum.audiogon.com/discussions/what-is-a-quot-current-dumping-amp-quot-and-pros-cons
Quad Audio's 909 amp uses a "current dumping" design. What exactly is the advantage or disadvantage of such a design?? The TAS reviewof the amp in issue #207 claimed that this might not be the amp for buyers,looking for deep or tight bass. I have seen several of these amps on sale over the last year.
Current Dumping revisited | diyAudio
https://www.diyaudio.com/community/threads/current-dumping-revisited.343136/
Mark, there is no bias in a current dumper amplifier, that's the whole idea of current dumping. The class A low power drives the output at all times, and when the dumpers come in, the bridge feedback lowers the loop gain to avoid a kink in the transfer due to the additional gain provided by the dumpers.
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