Cores and Other Inductive Components

High-Quality Inductive Components

Inductive components are one of the main groups of electronic components used in the design, construction, and production of modern electronic devices.

The company DACPOL offers pulse transformers for controlling thyristors, triacs, and IGBT transistors, as well as current transformers and cores for building transformers and chokes.

Transformers for Controlling Thyristors and Triacs

Transformers for controlling thyristors and triacs are produced for operating voltages between windings of 380V, 500V, and 750V, and are available in several winding design variants. There are versions of transformers with one primary winding and one secondary winding, as well as with two secondary windings. The winding ratios of the transformers also vary; for example, transformers with one secondary winding have ratios such as 1:1; 2:1; 3:1. The transformers are encapsulated with special resin and have a rectangular cuboid shape with leads for through-hole mounting on printed circuit boards.

They are characterized by very low capacitance between the primary and secondary windings, providing high resistance to uncontrolled thyristor triggering. They can be used for controlling thyristors in DC circuits, in AC circuits operating at mains frequency, or in converter circuits operating at elevated frequencies up to several kilohertz, e.g., in induction heating generators.

Pulse Transformers

Pulse transformers for controlling power transistors are designed for driving power transistors such as MOSFETs or IGBTs operating at high frequencies. Depending on the transformer type, the maximum operating frequency ranges from 20kHz to 500kHz. The transformers are encapsulated with special resin, forming a rectangular cuboid with leads for through-hole mounting on printed circuit boards.

Current Transformers

Current transformers can be used to measure currents at frequencies of 50Hz and 60Hz in the range of 25A to 600A. The secondary currents of these transformers, depending on the type, range from 0.05A to 0.6A. There are two versions of the transformers: with one secondary winding and with one secondary winding with two taps. The version with the tapped secondary winding is useful in systems with three ranges of measured currents. Transformers are manufactured in housings encapsulated with special resin with a hole for the cable serving as the primary winding of the transformer, with connector leads or through-hole mounting leads. The latter type of leads and the very low secondary current make them suitable for direct mounting on electronic boards.

Cores for Building Transformers and Chokes

Cores for building transformers and chokes are made of nanocrystalline and amorphous materials from HITACHI, such as METGLAS, METGLAS MAGNAPERM, METGLAS MICROLITE, and amorphous materials from VAC such as VITROVAC 6030F and VITROVAC 500F in the shape of the letter C or toroids. The materials differ in their hysteresis shape and can be used to build transformers and chokes with power up to 200kW and operating frequencies up to 40kHz.

Additionally, we offer powdered and amorphous core materials from AMS. They are made in the shape of the letter C or as toroids. They can be used to build transformers and chokes with power above 100 kW and frequencies up to 500 kHz.
Also check out electrical transducers available in our offer.