The remote control e-hoist circuit (1)

Published:2011/7/22 20:13:00 Author:qqtang | Keyword: remote control, e-hoist circuit | From:SeekIC

The infrared emitter circuit consists of the infrared emitter encoding integrated circuit IC1 and the external elements, see as figure 8-113. The control key S1-S4, diode VDl-VD3, capacitor C3-C8 and 4-13 pin of IC1 compose the key control input circuit; the capacitors of C1 and C2, quartz crystal oscillator BC and the 2- and 3-pin of IC1 compose the oscillator circuit; the resistor Rl-R4, transistors of V1 and V2, infrared LED VL1-VL3 and 15-pin of IC1 compose the infrared drive circuit.



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