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No. 158 Chengsi Road, Lili Town, Wujiang District, Suzhou City
Hengtai Liance Instrument Manufacturing (Suzhou) Co., Ltd
No. 158 Chengsi Road, Lili Town, Wujiang District, Suzhou City



thatinfraredtransformerIntended to work with infraredreceiver.
It is suitable for 2-1.5V batteries or 3VLithium batteryIn order to provide compact infrared device components while still maintaining good frequency stability, this circuit uses an external cameranetworkofoscillator.currentConsumption depends onpower supplyThe duration of holding down S1. When Ub=2V and the frequency is 29.3kHz,LEDThe current is 25mA, and the total current consumption is 27mA.
When Ub=3.2V and frequency is 30.4kHz, the current through each LED is 64mA, and the total current consumption is 67mA. At this voltage, the distance between the receiver and transmitter prototype is 13 meters.
By connecting S1 in series and parallel in RC, the current consumption can be reduced (R=10k Ω; C=1000uF/6.3V).
By pressing S1, only short current pulses can be generated. Even if S1 remains pressed down, the current cannot exceed 300uA.
infraredtransmitterPrinciples of Electric Circuitspicture