BT155K-1200TQ

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Thyristors are semiconductor devices that can be used to control power electronics systems. The BT155K-1200TQ is a commonly used thyristor that is employed in industrial applications. This article will delve into the application field and workings of the BT155K-1200TQ.

A thyristor is an electronic component that is made out of four layers of semiconductor material. It is a type of control device that is used to manage electronic systems. Thyristors typically have two input terminals labelled as anode and cathode and at least two output terminals – gate and emitter. The emitter output terminal is typically connected to either the anode or cathode input depending on the type of thyristor.

The BT155K-1200TQ is a specific type of thyristor known as a SCR (silicon-controlled rectifier). An SCR is based on a four-layer semiconductor structure which is made from an n-type layer sandwiched between two p-type layers. When the voltage between the anode and cathode terminals is sufficient to overcome the voltage barrier between the n and p layers, then the SCR conducts.

The BT155K-1200TQ is utilised in the electric power control systems. It is generally used to control voltage and current in electric motors, generators, power supplies and inverters. The thyristor is designed to handle a maximum current of 1200 amps and it is configured as a three-phase system.

The working principle of the BT155K-1200TQ is based on the electric field effect. When the anode and cathode terminals are connected to a voltage source, an electric field is created between the n and p layers. This electric field causes the n layer to become charged, which in turn affects the conductivity of the thyristor.

When the voltage applied to the anode and cathode terminals exceeds the voltage barrier between the n and p layers, then the thyristor begins to conduct. The magnitude of current that can be conducted depends on the voltage applied between the anode and cathode terminals. The thyristor remains in the conducting state until the voltage between the anode and cathode terminals falls below the voltage barrier.

The BT155K-1200TQ is a popular choice in the industrial applications due to its reliability and high-current carrying capability. It is designed and manufactured to meet the stringent requirements of the industrial environment such as shock, vibration, and elevated temperatures.

In conclusion, the BT155K-1200TQ is a type of SCR (silicon-controlled rectifier) which can be utilised for power control applications. It is configured as a three-phase system and is able to handle a maximum current of 1200 amps. The working principle of the thyristor is based on the electric field effect and it remains conducting until the voltage between the anode and cathode terminals falls below the voltage barrier.

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