Most power electronics designers and high-powered drives use multi-pulse rectifiers in the input section to achieve the requirements stated in IEEE519. These rectifiers are divided into 12, 18 and 24 pulse models and are powered by phase shifted transformers.

Fully controlled three-phase bridge rectifiers are known as the most common AC to DC converters. Fully controlled bridge converters are widely used in controlling the output voltage of power exchangers by electrochemical processes and can be formed simply by placing six thyristors instead of six rectifier diodes. Thyristors are three-ended semiconductor components that conduct current when a suitable trigger pulse is applied to their gate and their anode-cathode voltage is positive.

Twelve-pulse rectifiers with saturable reactors are the most durable and accurate option for electrochemical processes, which are controlled by saturable reactors with the ability to connect to the PLC unit, in which case their adjustment and monitoring is done by HMI. Saturable reactor technology is the safest

Based on the power electronics knowledge of research and development engineers, for the first time in Khazar Transfo Company, a switching power supply system with a cool air cooling system was produced. One of the major challenges of this product, which has not been made available to other competitors, is the design and construction of high-frequency transformer, the choice of core and type of wiring, as well as the cooling technique using only the air-cooled system in the current range of several thousand amps. - Input power supply: 3Ph, 400V, 50Hz

In a half-controlled three-phase rectifier, three diodes and three thyristors are used to generate a constant average output voltage according to the amount of input AC voltages

Double Star topology is a suitable product for high power DC power supplies due to the presence of interphase transformer (IPT). This transformer reduces the current peak and, like the parallelism of the two sources, creates a path for the current to pass and divides the peak between the two parts. Reduction of THD and a series of harmonics, no current flow in the device idle and only reactive power transmission are the features of IPT.