Q2015L5

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Thyristors are semiconductor devices that, once initialized, can control the flow of current in a device in both directions. Thyristors are commonly used in a variety of applications, such as motor control, energy conversion, light-dimming, etc. The Thyristor can be broadly classified into four types – SCRs, DIACs, TRIACs and UJTs.

One of the most widely used thyristors is the TRIAC, which stands for Triode for Alternating Current. The TRIAC is a solid state switch that can be used to control AC currents in either direction. Unlike SCRs, which are unidirectional, TRIACs can be used to switch both polarities of AC current.

Therefore, the Q2015L5 application field and working principle are related to the TRIAC. TRIACs are used to efficiently control the AC current in applications such as fan regulators, light dimmers, and AC motor controllers. The Q2015L5 is a TRIAC with an insulated gate, which makes it more reliable in switching applications.

The basic principle of a TRIAC can be understood by looking at the diagram below. It consists of two thyristors that are connected inside a single package. Each thyristor will conduct current in only one direction, and when a voltage is applied to the gate of one of the thyristors, it will start to conduct and turn on. The current will then be able to flow through the other thyristor, and the device will become conducting in both directions. When the voltage at the gate is removed, both thyristors will turn off, and the device will be non-conducting.

The working principle of the Q2015L5 is similar to the basic TRIAC. It has an embedded insulated gate technology (IGT) which increases its reliability when conducting current in both directions. The IGT ensures that the gate current flows in only one direction, and the TRIAC will stay on until the gate voltage is removed.

In conclusion, TRIACs are useful and versatile devices, and the Q2015L5 is an improved version of the standard TRIACs due to its insulated gate. The TRIACs are used in many applications such as motor control, energy conversion, light-dimming, etc. The working principle of the Q2015L5 is similar to the basic TRIAC with the additional benefit of improved reliability as its gate current only flows in one direction.

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