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An Introduction to Current Feedback Amplifiers for Audio
https://www.ovationhifidelity.com/wp-content/uploads/2019/05/An-Introduction-to-CFA-Amplifiers-for-Audio.pdf
An Introduction to Current Feedback Amplifiers for Audio www.ovationhifidelity.com Page 1 Introduction. CFA topology amplifiers have been around in the IC industry for 30 years. Following a patent claim by David Nelson, the earliest commercial offering was a module from Comlinear in 1982 and a few years later, I’s from both omlinear and Elantec.
The Alexander Current-Feedback Audio Power …
https://www.analog.com/media/en/technical-documentation/application-notes/58052492001115525484056221917334AN211.pdf
Title: The Alexander Current-Feedback Audio Power Amplifier Application Note (AN-211) Author: Analog Devices, Inc. Created Date: 0-01-01T00:00:00Z
AES E-Library » A Current-Feedback Audio Power Amplifier
https://www.aes.org/e-lib/browse.cfm?elib=5792
A new low cost, high performance audio power amplifier topology that uses current-feedback in the main gain stage is described. This technique, which has previously been restricted mainly to wideband and video amplifier circuit design, improves on the more common, voltage-feedback amplifier topology by providing a wide closed-loop bandwidth relatively …
Current Feedback Amplifiers I | Analog Devices
https://www.analog.com/en/analog-dialogue/articles/current-feedback-amplifiers-1.html
Current-feedback device data sheets will list specific optimum values of R F for various gain settings. Current feedback amplifiers have excellent slew-rate capabilities. While it is possible to design a voltage-feedback amplifier with high slew rate, the current-feedback architecture is inherently faster.
In defense of the current-feedback amplifier - EDN
https://www.edn.com/in-defense-of-the-current-feedback-amplifier/
In defense of the current-feedback amplifier. The current-feedback amplifier (CFA) started to gain wide exposure some three decades ago, when it became available in integrated-circuit form from Comlinear, Elantec, and Analog Devices. Since then, a body of expertise has been developed, which has allowed for the CFA’s application in myriad systems.
Current Feedback Amplifier - diyAudio
https://www.diyaudio.com/archive/blogs/rjm/828-current-feedback-amplifier.html
Current Feedback Amplifier. Found this today: DC Coupled Amplifiers for Audio from an 11 year old web page by one Knut Harald Nygaard. I've taken some minor liberties with the circuit, shown in the second, color image below. Replaced the current sources with resistors and moved the output buffer out of the feedback loop.
AN-597 Current Feedback Amplifiers - hifisonix.com: Audio ...
http://hifisonix.com/an-597-current-feedback-amplifiers/
AN-597 Current Feedback Amplifiers. This National Semiconductor application note was written by Hans Palouda and published in 1989. It explains basic CFA operation clearly and concisely. Here are some other useful application notes and articles that may help in developing an understanding of amplifier topologies and their associated trade-offs.
Pros and Cons of current feedback amplifier. | diyAudio
https://www.diyaudio.com/community/threads/pros-and-cons-of-current-feedback-amplifier.208416/
Simaudio MOON W-8 Dual-Mono Power Amplifier Now I have done a current feedback amplifier design, but not so sure how it sounding. Can you please share what the advantage of current feedback circuit? My new integrate amplifier is like below. Buffer Amp-->Low impedance volume control-->Voltage gain-->Current based amplifier.
Ovation sx-Amplifier: A 15 W Class A Current Feedback ...
http://hifisonix.com/sx-amplifier-audio-power-amplifier/
sx-Amplifier DSTHP Gold Flashed PCB Set. If you are having problems wiring up your sx-Amp, simply put your question up on the sx and nx thread on DIY Audio. The Ovation sx-Amplifier is a low component count current feedback topology (CFA) design that delivers 15W RMS in class A into an 8 Ohm load, about 25W peak in class A and 50W peak into 4 ...
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