CQ92D

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Thyristors are a type of semiconductor that are widely used in electronics and power switching applications. TRIAC is a type of thyristor that is a precise and efficient form of three-terminal switching device.CQ92D is a type of TRIAC thyristor widely used in the industrial, commercial and residential sectors for many applications.

Application Field

The CQ92D TRIAC has a wide range of applications in industrial and residential markets. It is widely used as a switching device due to its simple control and high efficiency. The most common applications of the CQ92D include motor starters, lighting control, power switching, and relay control. It is also used in a variety of other applications such as the control of solenoids, resistors, induction motors and transformers.

One of the major advantages of the CQ92D is its ability to control AC current. This makes it suitable for controlling high voltage, high current electrical systems such as those used in industrial applications. The CQ92D also features a very high current rating, which makes it suitable for high-power applications. Its low on-state voltage drop ensures that it can be used in a variety of solutions where higher voltage is needed.

Working Principle

The CQ92D is a three-terminal thyristor that can be activated by a gate-signal applied to its gate terminal. The current through the device is controlled by a voltage at its gate terminal, allowing it to be used as an AC current switch. When the voltage applied to the gate terminal is sufficient, the thyristor switches from its off-state to its on-state. This allows the current to flow through the thyristor. The current flows through the device until the applied voltage is no longer sufficient to keep the thyristor in its on-state.

The CQ92D features an innovative multi-stage circuit architecture that can be used to implement an active or passive zero-crossing detection and commutation scheme. This scheme is used to precisely control the on-state current and turn off the device at a predetermined point in an AC cycle. This allows the CQ92D to be used in solutions where higher power is needed, while also preventing the formation of any destructive overcurrrent pulses or dv/dt pulses.

The CQ92D is available in a variety of package types and its easy-to-implement gate driving circuitry makes it suitable for many industrial, commercial and residential applications. Its high efficiency, low on-state voltage drop and low EMI ensures that it can be used in a variety of solutions with minimal power losses and minimal interference.

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