HT5761

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Thyristors, also known as silicon-controlled rectifiers (SCRs), are solid-state electrical devices that are used to switch electric current by using threshold triggering. DIACs (diode AC switches) and SIDACs (silicon diodel AC switches) are two particular types of thyristors. The HT5761 is a DIAC/SIDAC device that is used in various applications. This article will discuss the various application fields for the HT5761 and its working principle.

HT5761 Application Fields

The HT5761 is a dual, bidirectional, segmented thyristor device that can be used in various applications. It can be used in power-switching circuits or as a triggering device, such as in a solid-state relay. The HT5761 can also be used in AC-to-DC converters, battery chargers and inverters, as well as in temperature controllers. In addition, the HT5761 can be used in digital-control circuits that require transient voltage-protection devices with low voltage levels. In AC control, the HT5761 can be used to control an AC circuit that requires a steady current or voltage.

HT5761 Working Principle

The HT5761 is a two-terminal device with four identical, bidirectional thyristor cells. When a positive or negative voltage is applied across two leads, current is allowed to flow through in both directions. The triggering voltage is typically between 20V to 50V. The HT5761 works by triggering the thyristors when the required triggering voltage is reached. When triggered, the current flows in both directions.

The HT5761 has several operational modes, including parallel, anti-parallel, alternating, and self-triggering. In parallel mode, the current flows through both thyristor cells when the triggering voltage has been reached. In anti-parallel mode, the current flows in opposite directions through the two thyristor cells. In alternating mode, the thyristors switch on and off in alternating directions. In self-triggering mode, the thyristors are triggered automatically when the voltage is applied.

Conclusion

The HT5761 DIAC/SIDAC device is a versatile two-terminal device with four thyristors, each of which can be triggered by a certain voltage. It can be used in power-switching circuits and AC control circuits, as well as in temperature controllers, battery chargers, digital-control circuits, and AC-to-DC converters. The HT5761 operates in various modes, such as parallel, alternating, anti-parallel, and self-triggering. It is an innovative solution for various applications, and is sure to be a reliable option for many customers.

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