VSKH170-12

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Thyristors have become an indispensable part of electrical and industrial automation, playing an important role in controlling and regulating power supplies. Thyristors are solid state devices that bridge the gap between manual and automated control systems, reducing the possibility of error. They are also used to manage advanced power-conversion systems, prevent circuit overloading, and offer enhanced reliability in power delivery. One of the most popular thyristors is the VSKH170-12: a high voltage, Phase-Controlled Rectifier Module. In this article, we explore the application fields and working principle of the VSKH170-12.

Applications

The VSKH170-12 is an ideal choice for a variety of applications. As an advanced rectifier module, it is capable of delivering high performance in hostile environments with wide operating temperatures (-40 to +85 Celsius). It can also accommodate voltage inputs of 500 to 800V, with a blocking voltage of 1200V. The module also has inbuilt snubber circuits, allowing it to cope with high frequency applications. In addition, its excellent dielectric strength ensures its longevity.

The VSKH170-12 can be used in a wide range of electrical applications, including AC control systems, switched mode power supplies, motor controls, automated control systems, and solar inverters. It is also used in high-end manufacturing, minimizing failure probability and managing large power-conversion systems. This module is designed with a very low switching loss, providing an enhanced performance and reliability.

Working Principle

The VSKH170-12 is a high-voltage, phase-controlled rectifier module. In simple terms, its main purpose is to control the flow of electric current by responding to a control voltage. The module is typically composed of a main semiconductor element and several other components, such as a diode, resistor and capacitor. The main semiconductor element is typically a silicon-controlled rectifier (SCR). It is divided into three terminals which are an anode, cathode and gate.

The anode terminal is connected to the positive side of the power supply and the cathode terminal is connected to the negative side. The gate is connected to the control signal, which dictates the power flow through the SCR. When an appropriate control signal is applied to the gate terminal, the SCR will turn ‘on’ and the power supply current will flow from the anode to the cathode. When the signal is removed, the SCR will be ‘off’ and the current flow will cease.

The rectifier module is equipped with several safety features, including over temperature and over current protection, making it a reliable and safe device. It also features an adjustable turn-off time to meet specific application needs. A built-in snubber circuit also helps protect the module from high-frequency fluctuations.

Conclusion

The VSKH170-12 is a high-voltage, phase-controlled rectifier module that can handle a variety of electrical and industrial automation applications. It is composed of a main semiconductor element (SCR), as well as various other components, and is capable of controlling the electric current flow in response to a control voltage. It also features several safety features, including over temperature and over current protection, making it a reliable and safe device. The module is designed with a very low switching loss, providing an enhanced performance and reliability. All in all, the VSKH170-12 is an ideal choice for a variety of electrical and industrial applications.

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