Simple Ir Transmitter Circuit Diagram. Here the audio signal input is applied at the base of the q1 via 1kω resistor. This circuit comprises the following components.
The circuit is divided in to ir transmitter circuit and ir receiver circuit. You can use any tsop but you need to generate ir of respective frequency as tsop. The working of the transmitter circuit is pretty simple the ir light from the ir led acts as a carrier signal and the intensity of the ir light acts as a modulating signal.
Simple ir transmitter schematic circuit diagram.
The ir transmitter and receiver circuit diagram is shown in the following images. This circuit uses just two standard logic ics which with the accompanying receiver forms a four channel remote control and has been designed for use with the audio video switch and the switchbox for loudspeakers shown elsewhere in this issue as is the ir receiver. As we know oscillation frequency of 555 timer is decided by resistor r1 r2 and capacitor c1. This sensor is analogous to human s visionary senses which can be used to detect obstacles and it is one of the common applications in real time.
