JFET

Headphone amplifier (12v single power supply to -12V)

Overview

Using a 12V single power supply, a 5/2.1 standard power interface, and an internal -12V conversion circuit, dual 12V power supplies are obtained to power the 5532 op amp. The front stage amplifies about 2 times, and the rear stage operates the radiation output to drive the headphones. The circuit has been completed, and the sound after welding is quite satisfactory, with no background noise at all. Pay attention to the amplitude of the audio signal input from the front stage. If it is too large, it may cause clipping.

Design Files

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Update:2025-06-19 19:04:27

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