ACT108-800EQP

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Thyristors - TRIACs is a type of semiconductor device which acts as a switch. It is primarily used in AC applications and it consists of two PN junction gates connected together in a reverse blocking or anti-parallel configuration. The ACT108-800EQP is a three terminal thyristor intended for use in AC circuits from 600 to 800 volts.

In order to protect the semiconductor from damage due to over-current or voltage surge, it contains a series of protective features. These features include over voltage protection, temperature protection and current limit protection. The current limit protection is usually implemented in the form of a circuit breaker.

The ACT108-800EQP is designed to provide a simple, yet effective switching solution for controlling an AC power supply. The device is capable of handling current up to 10 Amps at both linear and zero-voltage switching applications. The output current is limited by a maximum output voltage of 800V. The device also includes a zero-crossing feature that is triggered at a specific detected voltage level. The zero-crossing feature ensures that the output is switched at a point in the cycle where the current is minimum, thereby minimizing the electrical noise created by the switching process.

The main application of the ACT108-800EQP is as a power supply and motor control switch in industrial applications. It is well suited for use in applications such as AC motors, pumps and air conditioning systems. In addition to its use as a power supply and motor control device, the ACT108-800EQP is also used in Dimming Light Control applications, Electric Fence and Arc Welding applications. Moreover, it can also be used in Variable Speed Drives, Lighting Ballasts and Heating Elements.

The working principle of the ACT108-800EQP is based on the fact that it consists of two terminals connected in an anti-parallel manner. The forward bias current of one junction gate turns the TRIAC on, while the reverse bias current of the other junction gate turns it off. Since the two junction gates are connected in an anti-parallel configuration, both the forward and reverse bias current must be applied to turn the TRIAC on and off. The gate current is limited to 1 to 8V and is typically provided by an external current limited device.

When the AC load is connected across the TRIC, AC current passes though the device when it is in the ‘on’ state, and it is interrupted when it is in the ‘off’ state. The device is usually triggered by a zero-crossing circuit which detects the beginning and end of each of the positive and negative half-cycles of the AC cycle. This allows the device to switch on and off, while protecting the device and the connected load from damage due to over- current and voltage surge.

The ACT108-800EQP is a highly efficient and reliable three terminal thyristor and can be used in a wide range of AC applications. It is capable of providing a simple and effective switching solution for controlling an AC power supply, motor or lighting circuit. Additionally, it is designed with safety features such as over voltage and temperature protection and current limit protection.

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