FOD4118TV

Optoisolators are devices that use optical techniques to isolate one electric circuit from another. They are used to provide electrical isolation between two circuits so that sparks due to current leakage or induction do not travel between circuits, even if an insulation breakdown occurs. FOD4118TV is a typical device that belongs to the family of optoisolators - Triac, SCR Output.

FOD4118TV is a TRIAC and SCR type transmission output coupler with a proprietary photo-electric coupler, which integrates the TRIAC and SCR output coupler with integral semiconductor switching components or Passive Loads. It also has an optional logic input.

The components of FOD4118TV are mainly composed of an LED, a phototransistor, a triangular wave generator, a semi-controlled rectifier, a load, and optional logic input components. The LED outputs a light signal that is received by the phototransistor, It works as an optocoupler. The phototransistor is then triggered to open, releasing electrons that form the triangular wave generator. The triangular wave generator will control the semi-controlled rectifier, which is connected to the load.

The FOD4118TV is mainly used in switching control circuits and motor control circuits. For example, it can be used in remote control circuits, such as controlling a remote motor or other device from a distance. It can also be used for detectors that detect the presence of metal items. In addition, it can be used in AC phase angle control circuits for controlling motors, as well as for controlling assorted electrical appliances, such as electric fans, air conditioners, electric heaters, and other similar products.

The working principle of the FOD4118TV is simple. When power is applied, the LED diode emits a light signal to the phototransistor. The phototransistor then triggers the opening of the TRIAC or SCR, allowing electrons to move through the circuit. This will in turn control the operation of the load.

The FOD4118TV is a high-efficiency and reliable optoisolator, and can be used for many applications. It is easy to install and maintain, and offers long-term reliability. It can operate at high temperatures and provides excellent insulation between the circuits, making it ideal for use in applications that require electrical isolation.

In summary, the FOD4118TV optoisolator is a useful device that belongs to the family of optoisolators - Triac, SCR Output. It can be used in switching control and motor control circuits, and it works by emitting a light signal that is received by a phototransistor, which then triggers the opening of the TRIAC or SCR, allowing electrons to move through the circuit and controlling the operation of the load. It is reliable and easy to install, and provides excellent insulation between the circuits.