Peter Walker’s ‘Current Dumping’ Amplifier from 1975
in Power amplifiers, Technical
Peter Walker – Founder of Quad 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, […]
Michael Kiwanuka: SOA Protection for Audio Power Amplifiers
in Power amplifiers, Technical
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 his paper here soaprot_12-03-2012
Noise in Current Sources and Current Mirrors
in Preamplifiers, Technical
Einstein’s path to relativity
in Technical
Philosophical musings
in Technical
The low down on understanding the truth.