The Making of Computer Infrared Remote Control Receiver Circuit

According to the experiment, a receiving circuit matching with the simple plastic-sealed integrated infrared receiving head was made. The figure above is the circuit schematic diagram. In the figure, U1 is the simple plastic-sealed integrated infrared receiving head. Q1 is the PNP transistor 9015, and DC is the battery pack (it can be composed of 4 1.2V rechargeable batteries or 4 1.5V dry batteries. If you don’t want to use batteries, you can also take a +5V power supply from the mainboard as an auxiliary power supply.) The characteristics of this circuit are that Q1 is used to amplify the pulse coding signal of the infrared receiving head, and the auxiliary power supply is used to ensure that the simple plastic-sealed integrated infrared receiving head can work normally in the circuit. The figure below is the corresponding printed circuit board PCB diagram.