P1300ZB Circuit Protection

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Thyristor (Tvs)

Thyristor (TVS) is an electronic device used in electronics, that act as a type of switch controlling the flow of power. In order to understand how TVS functions, it is important to understand its application field and working principle.

Application Field

TVS is primarily used to protect sensitive electronic equipment from electrical overstress, as well as to limit the maximum available current to the circuit. This protection is made possible due to the bi-directional current blocking ability of the thyristor, allowing for greater flexibility and control. TVS can be used for applications such as power switching, overvoltage protection, low-power motor control, and switching applications.

TVS can also be used in power circuits where the current is limited to the maximum available power. This is useful for applications such as LED lighting and motor control, as well as overvoltage protection. TVS can provide protection against short-circuiting and overvoltage by limiting the maximum available current. When an overvoltage occurs, the TVS will immediately turn off, cutting off the power to the circuit and protecting it from further damage.

Working Principle

TVS has a simple working principle, and it is based on the “diode effect”. In a circuit, when a positive voltage is applied to the gate of the thyristor, the current flow will be completely blocked or reduced. In other words, when the current flow is blocked, the circuit is protected from overload. This is the diode effect, and it is the basis of TVS’s working principle.

The device is made up of two electrodes, an anode and a cathode. When the anode is positive and the cathode is connected, it creates a closed or “on” circuit. In this state, the current can flow between the anode and the cathode. When a positive voltage is applied to the gate of the thyristor, the voltage across the device is increased, and the current is reduced. This results in the current being blocked or reduced, thus protecting the circuit from overload or short circuit.

TVS is a very simple yet effective protection device, and it has been used in various applications across various industries. It is one of the most common types of electrical protection, and is often used in power supplies, switching applications, and overvoltage protection.

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