Tripath Class-T technology uses both analog circuitry and Tripath’s Digital Power
Processing algorithms that modulate the input signal with a high-frequency switching
pattern. Tripath’s proprietary algorithms are derivatives of adaptive and predictive
algorithms used in telecommunications processors. The modulated signal is sent to output
transistors then through a low-pass filter (external to the Tripath amplifier) that demodulates
it to recover an amplified version of the audio input.
In a Tripath amplifier there is an input stage that provides analog input signal buffering. The
output of this stage drives the Digital Power Processing
TM
block. This block contains an
adaptive signal conditioning processor, a digital conversion function, mute control, overload
handling, fault detection, predictive processing and qualification logic functions. The output
of the DPP
TM
block controls a power output stage that drives a speaker through an output
filter.