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Showing posts with label LM567 Infrared Transmitter Circuit. Show all posts
Showing posts with label LM567 Infrared Transmitter Circuit. Show all posts

5/28/2015

LM567 Infrared Transmitter Circuit

LM567 Infrared Transmitter Circuit

This infrared transmitter use PWM (pulse width modulation).
The transmitter is equiped with LM567, tone decoder circuit. Audio signal ( at least 50mVvv ) is amplified with T1 and then it is used to modulate IC1. Infrared transmitter frequency is adjusted with P2 between 25 and 40KHz.
LM567 Infrared Transmitter Circuit
LM567 Infrared Transmitter Circuit

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200W Audio Amplifier Circuit

Circuit description: Connecting two TDA2030 thru cheap power transistors we can create a amplifier wich can deliver a higher power. Wi...

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