This power amp design is based on the sx-Amplifier topology, but with the TIS and output stage re-configured for class AB operation, enabling it to deliver 100 W into 8 Ohms. I have kept the design very simple, retaining…
Ever wondered how we got to ‘feedback is bad’, ‘ . . . sampling destroys the music’ or ’ . . . analog is, like, 40 bits resolution man’ , ‘we need damping factors of 1000′ and ‘ . . ….
nx-Amplifier Double sided through hole plated plus gold plating PCB sets (2 off amplifier boards plus 1 off PSU +Protection) are now available from Jim’s Audio on ebay.
A brief summary of the differences of these two topologies with the emphasis on their applicability to practical audio power amplifier design. Updated with additional graphs and information 27th November 2013:- CFA vs classic Lin VFA topology V1.0
This National Semiconductor application note was written by Hans Palouda and published in 1989. It explains basic CFA operation clearly and concisely. AN-597 Current Feedback Amplifiers
This is the famous analysis of class B amplifier cross-over distortion by the then head of HP Reasearch Labs, Dr. Barney Oliver, published in the February 1971 edition of the HP Journal. The ideal bias current Iq for a class…
