1、 毕业设计 外文翻译 多 红外遥控及芯片介绍 学 院： 电气与电子工程学院 专 业： 电子信息工程 学生姓名 ： 学 号： 指导教师 ： 2011 年 6 月Infrared Remote And Chips Are Introduced 1 Infrared Remote And Chips Are Introduced Peoples eyes can see the visible wavelength from long to short according to the arrangement, in order to red, orange, yellow, green, gree
2、n, blue, violet. One of the red wavelengths for 0.62 0.76 muon m, Purple is 0.38 wavelength range muon m. Purple is shorter than the wavelength of light called ultraviolet ray, red wavelengths of light is longer than that of infrared light. Infrared remote control is to use wavelength for 0.76 1.5 m
3、uon m between the near infrared to transfer control signal. Commonly used infrared remote control system of general points transmit and receive two parts. The main component part for the launch of infrared light emitting diode. It is actually a special light emitting diode, due to its internal mater
4、ial differs from ordinary light emitting diode, resulting in its ends on certain voltage, it is a rather infrared light. Use of infrared light emitting diode the infrared wavelengths, for 940nm appearance and ordinary, just the same light emitting diode five different colors. Infrared light emitting
5、 diode generally have black and blue, transparent three colors. Judgement of infrared light emitting diode and judgment method, using a multimeter to ordinary diode electric block measure of infrared light emitting diode, reverse resistance. The infrared light emitting diode luminescence efficiency
6、to use special instrument to measure precise, and use only spare conditions to pull away from roughly judgement. Receiving part of infrared receiving tube is a photosensitive diode. In actual application of ir receiving diode to reverse bias, it can work normally, i.e., the infrared receiving circui
7、t application in diode is used to reverse, higher sensitivity. Infrared receiving diode usually have two round and rectangular. Due to the power of infrared light emitting diode (or less commonly 100mW), so ir receiving diode received signals is weak, so will increase high-gain ones.the amplifier ci
8、rcuit. In common CX20106A, etc PC1373H muon infrared receiving special amplifier circuit. In recent years both amateur or formal products, mostly using infrared receiving head finished. The head of infrared receiving product packages generally has two kinds: one kind USES sheet shielding, A kind of
9、plastic packaging. There are three pin, namely the power is (VDD), power negative (GND) and data output (VO or OUT). Infrared receiving head foot arrangement for types varied, manufacturers instructions. Finished the advantages of infrared receiving head is not in need of sophisticated debugging and shell screen, use rise as a transistor, very convenient. But
