Homemade TV remote control off electrical power supply circuit

Posted on Nov 10, 2015

When the infrared receiver tube PH302 receives a signal from the remote control, the CX20106A selected frequency amplifier output

Homemade TV remote control off electrical power supply circuit
Click here to download the full size of the above Circuit.

a low-frequency signal, the low-level signal by the D and R charges C, so C negative side potential falls below 1 / 3Vcc , .png">555 circuit discharge cutoff relay shock release, cut off the power supply. RC circuit sensitivity can be set to the action, press the remote control is generally 3-5 seconds. Press S1 relay circuit namely self-locking when powered on.

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