The sound of a photoelectric conversion circuit

Posted on Mar 28, 2007

Circuit works as follows: The electrical circuit is a light, a light electric sound conversion circuit with two simple fiber optic connector for experimental play is shown. f W

The sound of a photoelectric conversion circuit
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hat the electrical diagram showing a conversion circuit. Audio radio, music and other audio Xin headphone jack output from the input socket xs, after VT amplified by the drive LED light signals emitted by audio signals modulated complete electro-optical conversion. Circuit Ri is the role of the circuit input impedance of the radio, Walkman and other audio output impedance matching. Figure showing b} sound power conversion circuit. LED light signal emitted after the optical fiber transmission received by the photodiode f Ran, VLS converting the received optical signal into an electrical signal weak. This pre-amplifier via the transistor VT and other electrical components of the composition of an enlarged and then sent people LM386 IC power amplifier, speaker BL push restore the sound to achieve a light electric sound conversion. Circuit RP is the volume adjustment potentiometer.

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