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红外遥控器已在家用电器(录像机、电视机等)上普遍采用。但大多数功能复杂,许多还用微机解码,使人不易掌握。而许多设备的控制也无需那么多复杂的功能,尤其是现在使用的大量家用电器没有遥控功能。现在介绍一种简单易行的遥控电路,一般稍有电路常识者不用费大多工夫就能自己动手制成遥控器。该遥控器总共有三块集成电路5 G 9101～5G 9103,可以实现14种遥控功能,包括一种音量遥控,另加四种手控功能。若用两块集成电路5 G 9101和5G 9102也可以,只是仅有10种遥控功能。下面分别介绍其功能特点及应用方法。一、发送编码电路5G 9101图1是用5G 9101构成的编码调制红外发送电路。电源用3 V电池供电,静态(不按键时)耗电流
Infrared remote control has been widely used in household appliances (video recorders, TV sets, etc.). However, most of the functions are complicated, and many of them also use computer decoding, making it hard to grasp. The control of many devices also do not need so many complex functions, especially the large number of household appliances now do not have remote control. Now introduce a simple and easy remote control circuit, the general general knowledge of a little circuit do not have to spend much time to make their own remote control. The remote control has a total of three integrated circuits 5 G 9101 ~ 5G 9103, can achieve 14 kinds of remote control functions, including a volume remote control, plus four kinds of manual functions. With two ICs, the 5 G 9101 and 5G 9102 are also possible, with just 10 remote functions. The following describes the features and application methods. First, send coding circuit 5G 9101 Figure 1 is encoded with 5G 9101 modulation infrared transmitter circuit. Power supply with 3 V battery, static (not key) current consumption