目前,很多家用电器的功能控制键都采用轻触式,虽然比机械式按键优越,但仍然觉得不如遥控方便。本文介绍的通用遥控电路,可以方便地将轻触式控制的各种家用电器改装成遥控控制,而不改动原机线路。 工作原理 图1是BA5101组成的红外线遥控发射电路,工作电压为3V,正好采用两节五号电池,按键AN1～AN8分别独立控制8个通道,每当按下AN1～AN8中的任一键时,经过编码调制的一串38kHz信号经三极管V1和V2放大后由红外线发射管向外界发射,控制距离大于6米,如果在红外线发射和接收管前面各加一片凸透镜,遥控 At present, many home appliances function control keys are used touch, although superior than the mechanical keys, but still feel better than remote control. This article describes the universal remote control circuit, you can easily touch control of various household appliances converted into remote control, without changing the original line. Working principle Figure 1 is composed of BA5101 infrared remote control transmitter circuit, the working voltage of 3V, just use two AA batteries, buttons AN1 ~ AN8 were independently controlled 8 channels, each time you press AN1 ~ AN8 of any key, through A modulated 38kHz signal modulated by the transistor V1 and V2 amplified by the infrared emission control launched to the outside world, the control distance greater than 6 meters, if the infrared emission and receiving tube in front of each plus a convex lens, remote control