F.H.T.S. AUDIO POWER AMPLIFIER DEVELOPMENT

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FHTS-150W-4L

This is a model design of a high-end 150-watts audio power amplifier main-circuit for 4-ohms output-load. This model has a modern circuit topology with the advanced LTP circuit model to achieve very low output offset, symmetrical high-speed high-gain VAS, and advanced solid-state output-overload protection.

FHTS-150W-4L is designed to have capability to produce approximately 36V-peak output amplitude without clipping or produce averagely 25V RMS output if the input level reaching at averagely 0.775V RMS or 0dBU. Its optimal power handling capability is approximately 150 watts, with the output signal averagely in 25V RMS at 4-ohms output-load.

Circuit Board Design For FHTS-150W-4L

FHTS-100W-4L design came with single-sided PCB with size in 146 cm x 10 cm. The average copper trace width is 0.889 mm, in which should be able for handling approximately 100 mA DC current. The copper traces in particular parts have width in 3.81 mm, for handling approximately 10A DC peak current.

Repository & Source Downloads

Project Repository URL:
https://gitlab.com/fhts-audio-power-amplifier/fhts-150w-4l

Schematic & PCB design files bundle download URL:
https://gitlab.com/fhts-audio-power-amplifier/fhts-150w-4l/-/archive/main/fhts-150w-4l-main.zip?ref_type=heads