Infrared remote control transmitter/receiver circuit
Source: InternetPublisher:狂妄火龙果 Keywords: Amplifiers power supplies and other power circuits Updated: 2021/03/21
The operating frequency of this circuit is 25kHz. Whether the data stream turns the 2N4401 on or off is determined by the encoding status. In turn, it determines whether the series infrared light-emitting diodes are bright or not. The reception circuit consists of a third-order amplifier whose photodiodes are arranged over the largest area in the reception area.
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