Position: Index > Control Circuit >

TV Remote Control Interceptor explain the principle

2015-03-02 18:43  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.

This article is a TV remote control to explain the principles of the interceptor. The principle is simple but effective. For you to more effectively grasp this principle, we recommend that you read the text combines schematic. 555 years 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.


TV remote control Blocker

TV remote control Blocker

VN:D [1.6.9_936]


Reprinted Url Of This Article: