Power Amplifiers, and especially bipolar output designs, require output stage protection in the event of a fault, or the presence of a heavy or highly reactive load. Michael Kiwanuka explains the intracacies and the design methodology in this important paper …
This article was published in October of 1952, when Baxandall was 31 years old, the design having already won him a prize 2 years earlier in a competition. His design basically relegated other tone control circuits to the scrap heap, although cheap…
This is my latest power amp, based on the sx-Amplifier topology, but modified for class AB which enables it to deliver 100 W into 8 Ohms. I have kept the design very simple, retaining the CFA topology, providing a very…
A complete relay that is smaller than a Tyco RT series EMR Simple_solid_state_relay_Updated . This design uses a small double sided PCB and some SMD components. Here are the Gerber files SSLR. The recomended mosfets for this design are the PSMN4R3-100PS[1] for…
Here is an error correction technique that can be applied to class A and AB amplifiers to provide distortion reduction of up to 20 dB at 20 kHz. This approach measures the difference between the input (the reference) and the…
The e-Amp is a 180 Watt RMS (conservatively rated into 8 Ω) fully balanced symmetrical (‘FBS’) amplifier featuring an emitter follower triple (EFT) bipolar output stage and beta enhanced VAS stage. The amplifier can be configured using jumpers for TMC…
