VVZ70-14IO7

Thyristors - SCRs - Modules

VVZ70-14IO7 is a bidirectional thyristor-switched power module with a blocking voltage of 700V and it is widely used in various applications, such as rectifying circuits, inverters, switching DC to AC in AC motors, etc. This article will discuss the application fields and working principle of the VVZ70-14IO7.

Application Fields

The VVZ70-14IO7 can be used in rectifying and power factor correction circuits as both AC/DC converters, and DC/AC converters. In these types of circuits, the thyristor-switched power modules can control the power flow directionally, thus ensuring maximum efficiency in the distribution and usage of electrical power.

The VVZ70-14IO7 can also be used in special electronic circuits, like brushless DC motors. This type of motor requires the use of power electronics in order to control the rotation of its own shaft. By using the VVZ70-14IO7, the circuits of the brushless DC motors can realize the fast and efficient switching from DC to AC, thus being able to drive the motor with the proper control.

In addition, the VVZ70-14IO7 is suitable for use in soft-start applications. Soft-start is an important part of power electronics, used for avoiding large inrush currents when turning on electrical devices. The thyristor-switched power module VVZ70-14IO7 can be used to control the start-up current of the devices.

Working Principle

The VVZ70-14IO7 is a bidirectional thyristor-switched power module, using two thyristors that work together as both a switch and a rectifier. The thyristors are interconnected in a way that one of them can act as a gate and the other as a controlled rectifier. The thyristors create an AC/DC with a reverse blocking voltage of 700V. This is beneficial for the operation of AC-DC and DC-AC converters, as the 700V reverse blocking voltage helps guarantee that the chosen circuit can handle the required voltages.

When the VVZ70-14IO7 is used as an AC/DC converter, the two thyristors form a rectifier. The two thyristors are connected in series with the load and the AC voltage source. When the voltage of the AC source is larger than the voltage of the load, the thyristors act as a rectifier and allow electric current to flow through the load. On the other hand, if the voltage of the AC source is smaller than the voltage of the load, the thyristors act as a switch and electric current is blocked.

When the VVZ70-14IO7 is used as a DC/AC converter, the two thyristors form a switch. This means that when the voltage of the DC source is larger than the voltage of the load, the thyristors act as a switch and allow electric current to flow through the load. When the voltage of the DC source is smaller than the voltage of the load, the thyristors act as a rectifier and block electric current.

The bidirectional behavior of the thyristors makes the VVZ70-14IO7 suitable to be used in both AC and DC circuits, thus allowing a versatile and efficient usage of energy in various electronic circuits and applications.

Conclusion

VVZ70-14IO7 is a bidirectional thyristor-switched power module with a blocking voltage of 700V, which is widely used in various applications as both AC/DC and DC/AC converters. This module is quite efficient in controlling the power flow by using the two thyristors as a controlled rectifier and a switch.

The VVZ70-14IO7 can be used in rectifying and power factor correction circuits, in brushless DC motors, and in soft-start applications. As it is bidirectional, it can be used in both AC and DC circuits. This makes the VVZ70-14IO7 a great option for a wide range of industrial and commercial applications.