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Simple television remote control circuit interceptor

2015-01-12 20:24  
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This article shows that the TV remote control blocker circuit. To better grasp this principle, you can combine text understandable that circuit. For a more thorough grasp of this principle, you can also learn about the importance of the circuit components, such as: 1N4148, BC557 .555  as an astable multivibrator frequency close to 38 kHz. This is the frequency, most modern TV receivers infrared beam. Transistor as a current source provides about 25 horses to the infrared light emitting diode. Increase the range of the circuit only reduce the value of 180 ohms resistance is not less than 100 ohms. It is the need to adjust the potentiometer 10 k while pointing the device at your TV screen infrared rays from the remote. This test can be repeated until the remote is no longer responding. The circuit is very simple, but effective. Welcome to explore the principle. I hope for your help. 

TV remote control Blocker




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