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本次设计采用TL0038BD一体化红外接收器,该器件具有低功耗,高灵敏度及较强的抗干扰能力,广泛应用于家用电器,遥控玩具等红外遥控接收。通过AT89C51单片机控制LED灯亮度的分级水平,采用典型的自制运放电路达到适合的输出,经过实际试验,发现该红外感应PWM亮度控制高亮度LED灯能较好地达到预期要求。经过改进后,该器件可以用来改进目前的主流触摸屏、照明设施,嵌入式电器等等设备,通过红外智能控制发光的亮度,使操作更为便捷。
The design uses TL0038BD integrated infrared receiver, the device has low power consumption, high sensitivity and strong anti-interference ability, widely used in household appliances, remote control toys and other infrared remote control receiver. By AT89C51 MCU control LED lighting brightness grading level, using a typical homemade op amp circuit to achieve the appropriate output, after an actual test and found that the infrared sensor PWM brightness control of high brightness LED lights can better meet the expected requirements. Improved, the device can be used to improve the current mainstream touch screen, lighting, embedded appliances and so on, through the intelligent infrared light control brightness, making the operation more convenient.