Toroidal transformers

The toroidal transformer owes its name to the construction of the core, which has a characteristic, ring-like shape. This type of transformer consists of two or more windings which are placed on said core. A characteristic feature of this device is its compact design, which distinguishes it from other transformers. In addition, thanks to the use of an oval-shaped core, less materials are required for its construction. Toroidal transformers can transform large amounts of power, because the core used in them allows to achieve significantly higher switching current values than in a classic transformer. It is worth noting that the toroidal transformer is characterized by a low dissipation reactance, thanks to which it can be used in structures where the inductance may exceed the tolerance threshold of the device. An additional advantage is that the use of a closed loop in the core leads to reduced power losses, and the transformer is much quieter. The toroidal transformer is mainly used in lighting installations. It is used as a power source for halogen bulbs with a nominal power supply of 12V, for powering LED strips, but also in amplifiers used, for example, in monitors, audio equipment and TV sets. Single-phase and two-phase toroidal transformers are distinguished. Individual models have additional features, i.e. they can be equipped with thermal protection, encapsulated with epoxy mass, as well as equipped with electrostatic and magnetic screens. Some of the transformers in the EL12 offer also have the so-called a soft start system that gradually increases the voltage and current when the device is switched on, thus preventing short circuits. When switching off the equipment, a similar situation occurs - the system leads to a gradual decrease in both values.