Audio amplifier circuit

A method for producing amplification of an analog audio signal, the method comprising:

• supplying a first audio signal and a first triangle wave signal to a first audio to pulse train converter;
• generating, by the first audio to pulse train converter, based on the received first audio signal and the first triangle wave signal, a first pulse train signal indicative of the first audio signal;
• supplying a second audio signal and a second triangle wave signal to a second audio to pulse train converter;
• generating, by the second audio to pulse train converter, based on the received second audio frequency signal and the second triangle wave signal, a second pulse train signal indicative of the second audio signal, the first and second pulse trains comprising a complementary train of pulses;
• amplifying, by a circlotron, the complementary train of pulses thereby producing an amplified version of the analog audio signal based on a difference between the first pulse train signal and the second pulse train signal;
• and
• outputting, from the circlotron, the amplified version of the analog audio signal.

A system for producing amplification of a stereo audio signal, the system configured to amplify a left analog audio signal and a right analog audio signal, the system including a left channel amplifier and a right channel amplifier, each of the two channel amplifiers comprising:

• an analog to pulse train converter configured to convert an analog audio signal to a complementary train of pulses indicative of the analog audio signal, the analog to pulse train converter receiving the analog audio signal at an input port and providing the complementary train of pulses at an output port;
• and
• a circlotron having two active devices, two power supplies, two complementary input terminals, and two complementary output nodes, wherein each of the active devices has a control node in conductive communication with a respective one of the complementary input terminals, wherein the complementary input terminals are configured to receive the complementary train of pulses;
• wherein the circlotron is configured to amplify the complementary train of pulses, thereby producing an amplified version of the analog audio signal at the two output nodes.