LTL-307GE

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The LTL-307GE is an infrared emitter and photo detector module, designed for use in applications that require discrete LED indication. It has the advantages of low cost, small size, wide range of voltage, and good reliability. It has been used in many applications such as in the automotive industry, telecommunications, lighting and fixture control, industrial control, etc.

Discrete LED Indication Applications

The LTL-307GE has a wide variety of applications in LED indication. In the automotive industry, it can be used to indicate the status of doors, engine speed and acceleration, engine temperature and the presence of headlights. It can also be used to indicate the presence of a fuel tank, the state of the brakes, engine speed and acceleration, and for general communications. In telecommunications, it can be used to indicate the presence of a telephone line, and in lighting and fixture control, it can be used to indicate the presence and status of motion detectors and other lighting fixtures.

In industrial control, the LTL-307GE can be used to indicate the status of motion sensors and other control systems, as well as for general communication and data transmission. In robotics, it can be used for communication and the exchange of data between robots and the central controller.

Working Principle

The LTL-307GE operates on the principle of transmitting an infrared beam of light between an infrared emitter and a photo detector. When a reflected beam of light is detected, an electrical signal is generated, indicating a change in the state of the system. The emitter and detector are mounted on the PCB of the module, and the light beam is directed along a path of circuit boards.

The infrared emitter consists of a small electrical device, usually occupying a space of 1.5mm. It has a quartz crystal that produces an infrared light when voltage is applied to it. The emitted infrared light is monitored by the photo detector, which is also made up of a quartz crystal. When the infrared light is detected, the photo detector generates an electrical current, which is then sent to the controller.

The module is powered by an external voltage source and the photo detector is powered by a resistor connected to the controller board. Both the emitter and the detector require an appropriate supply voltage for optimal operation. The module also includes a diode used to protect the photo detector from any electrical surge.

Conclusion

The LTL-307GE is a cost-effective solution for discrete LED indication applications. It has the advantage of being easy to use and reliable, has a wide range of voltage, and small size. It has been used in many applications such automotive, telecommunications, lighting and fixture control, industrial control, and robotics. The working principle involves an infrared emitter and a photo detector that produce a signal to indicate a change in the system.

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