TV power saving remote control shutdown circuit (CIC2851)

Published:2011/8/26 1:52:00 Author:TaoXi | Keyword: TV, power saving, remote control, shutdown circuit | From:SeekIC

The TV power saving remote control shutdown circuit is as shown in the figure. This circuit is composed of the power supply circuit, the infrared receiver circuit, the music integrated circuit and the IC(CIC2851). When the handheld remote controller sends the signal to the TV, the phototransistor BG1 receives this signal. This signal is the pulse modulated signal, the average power is small. This signal is amplified by the BG2 to trigger the IC and makes the IC sends out the audio signal, this audio signal is rectified by D5 and D6 to produce the bias current, the bias current makes the BG5 conduct, and the relay J will close to connect the power supply of the TV.



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