Audio earphone amplifier
A technology of audio earphones and amplifiers, applied in the direction of sensors, transducer circuits, sensor components, etc., to achieve the effects of easy mass production, high reliability, and high cost performance
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[0030] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0031] figure 1 It is a schematic circuit diagram of the present invention. An audio headphone amplifier, the audio headphone amplifier includes an audio input signal connection potentiometer, the center tap of the potentiometer is connected to the non-inverting input terminal of the first integrated operational amplifier, and the other end of the potentiometer is grounded; the non-inverting input terminal of the first integrated operational amplifier is connected to the Connect resistor RR1 and capacitor CR2 between ground;
[0032] The output terminal of the first integrated operational amplifier is connected to the inverting input terminal; the first integrated operational amplifier is connected to ±12V voltage; the output terminal of the first integrated operational amplifier is connected to the non-inverting input terminal of the first integrated power amplifi...
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