TCR22-8

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Thyristors - SCRs

Thyristors, also known as SCRs, are semi-conductor four-layer devices that act as electrical switches for controlling electrical current and are widely used in many applications. The TCR22-8 is a popular model of thyristor used in a variety of applications, due to its reliability and cost-effectiveness. This article will discuss the application field and working principle of the TCR22-8.

Application Field

The TCR22-8 is suitable for applications that require fast switching of pulses, such as for power supplies and control circuits. It is also widely used in motor control and switching circuits, as it allows for precise control of power to small motors.

The TCR22-8 is also used by large-scale industries, such as steel and iron works, where the pulse-switching capabilities of the SCR come into play. Since the thyristor is capable of carrying large currents, it is capable of providing reliable solutions for controlling high-power loads, such as furnaces and motors used in industrial settings.

Working Principle

As a four-layer device, the TCR22-8 consists of two PN junctions that are positioned in series. The PN junctions are connected to a control electrode, which triggers the thyristor to switch on or off. When a negative voltage is applied to the control electrode, the thyristor is triggered and current flows through it. If the negative voltage is removed, the thyristor switches off and the current stops flowing.

The TCR22-8 is capable of carrying high currents, and its voltage ratings can range up to 800 volts. Once triggered, it will remain in its on state until the current is removed or its gate voltage is exceeded. The capacity of the thyristor to stay in its on state even after the triggering voltage is removed makes it an ideal choice for motor control and switching applications.

Conclusion

The TCR22-8 is a widely used thyristor due to its reliability, cost-effectiveness, and versatility. It can be used in a variety of applications, ranging from power supplies and motor control to industrial settings. Its four-layer construction and gate voltage control enable it to carry high currents and remain in its on-state until the current is removed or the gate voltage is exceeded.

For a variety of electrical applications, the TCR22-8 is an ideal choice, as it offers reliable, durable and cost-effective solutions. It is important to understand how the thyristor works in order to properly utilize it in various applications.

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