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Audio optical modulator circuit to explain

2016-01-13 20:15  
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This article is an audio optical modulator circuit theory to explain. The combination of text read schematics would be more effective to grasp this principle. The circuit uses a small portion of the light modulating audio output from the speaker terminals of the audio amplifier. Each speaker audio  amplifier  output terminal connected to the transformer (output transformer for transistor radios) through a non-polarized capacitor. Using a transformer is essential for isolating the audio source circuit sensitivity control potentiometer VR1 provides input transistor T1 may be adjusted as appropriate to ensure that the conduction of atrial fibrillation occurs only above a certain amplitude. This control must be adjusted according to the audio source level. Audio signals properly grounded circuit is very crucial. The diode bridge provides a pulsating DC output protection circuit between the supply voltage, pulsating DC output. Extreme care is necessary to avoid any shock. If you are the first to understand this principle, we might Duokanjibian. The principle is simple but effective.


Audio Light Modulator

Audio Light Modulator

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