The most important element of thyristor power electronics. Although many years passed since the discovery of the use has continued to increase. Currently, rectifier, is widely used in devices such as drive.

Thyristor, basically similar to the diodes. Revision of the diode circuit is connected to the difference in the direction is allowed to flow through the flow. Revision connects to the direction of the diode behaves like a thyristor, but even before the trigger signal does not allow current to pass.With this feature, some applications for both the rectification and voltage setting can be saved the cost of using the extra diode. A two-phase inverse parallel thyristor control is performed using the AC.

Thyristor controlled entry systems group was used to adjust the voltage transformer input current output current of the device should be used because it is a very low level compared to the power thyristor is reduced. In this way, the control element and consequently, the device reveals the lost heat energy is also reduced.This means lower cooling costs. Thyristor-controlled systems, the output of the group works with low voltage transformer to the next section. However, a larger current is passed through the material will be used for more powerful thyristors. This means that the increase in losses of control will occur. Therefore, depending on the device input or output control method is preferred.

Thyristor control unit to a group by a suitable driver circuit which spreads out in accordance with the current / voltage to the desired value is provided. The biggest advantage of thyristor systems are extremely fast output voltage can be controlled more stable.Ramp function, or pulse-base flow control functions can easily be performed as desired. Mechanical wear is not a part of that for the many years of work as the first day. Disadvantages of the more sensitive to factors such as high current and heat.In addition, more complex control systems. Voltage adjust the power factor of the system for breaking the negative effects of network signal form. DC output voltage according to the value of the maximum voltage values​​, especially when there is a small roughness factor of the DC voltage (ripple) is very poor, however, and developed control techniques have become an integral part of the protection measures rectifiers.