Transformers

Electromagnetic Transformers

What is a transformer?

A transformer is a device that transfers electricity from one electrical circuit to another, which is realized by means of mutually inducing wires called coils wound around a core (magnet wire), which can be made of various materials such as iron, steel or ferrite. The principle of such energy transfer in a transformer is known as mutual induction. Transformers are essential components in electrical systems used to convert the voltage, current, or frequency of electrical energy between two or more circuits.

Transformers are the basis for the correct operation of various electrical devices, lighting fixtures, as they receive the correct voltage. This prevents the prerequisites for burning or damage to electrical appliances, and also enables energy savings. They can also serve as protection against electric shocks or exposure to extreme operating conditions of electrical systems.

Toroidal Transformer

A toroidal transformer is a type of transformer that is in a toroidal shape that looks like the shape of a donut (toroid) or ring and is a passive electronic component. Toroidal transformers are made from ferromagnetic materials such as ferrite, laminated iron or iron powder. A wire, usually made of copper, is wound around the ferromagnetic material. The windings can be wound on both the outer and inner parts of the core, allowing for a more compact design and higher efficiency. The magnetic field generated by the primary coil passes through the iron ring and induces a voltage in the secondary coil. The shape and devices as well as a core that helps reduce current dissipation losses and increase efficiency compared to air or ferrite core transformers. They are used in applications where size, efficiency and noise reduction are a priority, such as in telecommunications equipment, computers, industrial controllers and medical equipment.

Advantages of Toroidal Transformers:

• Higher efficiency: Due to the shape and device offering reduced dissipation losses and improved magnetic coupling, toroidal transformers increase the efficiency of electrical devices.
• Compactness: The toroidal donut-like design allows better winding of the windings, which results in minimal transformer dimensions and allows its installation in hard-to-reach places or to be built into electrical appliances.
• Reduced interference: Toroidal transformers produce less electromagnetic interference than other types of transformers because their magnetic fields are tight and compact and do not propagate outside the core.
• Improved Insulation: The secondary windings in toroidal transformers are often encapsulated in oil or polymer insulation, providing additional protection against electrical damage and increasing the safety of the transformer operation and from external mechanical or physical conditions.
• Better regulation: Some toroidal transformers allow better regulation of the output voltage by using different core materials or by changing the number of turns in the windings.

W-shaped Transformers

W-shaped transformers, also known as W-shaped transformers, are a type of transformer used in a variety of voltage conversion and circuit isolation applications. W-shaped transformers are a type whose magnetic core is in the shape of the letter Ш. The magnetoconductor is also called a ferromagnetic magnetoconductor, and it is composed of plates glued together, called lamellas. The power of the transformer, as well as its type (step-down or step-up) is determined by the ratio of the wire section of its primary winding and the number of turns to the wire section of the secondary winding and its number of turns.

• Isolation: Like other transformers, w-type transformers provide electrical isolation between the primary and secondary circuits, preventing current from flowing between them. This is particularly useful in high voltage applications where maintaining insulation is critical to safety.
• Efficiency: The unique W-shape of allows better magnetic coupling between the primary and secondary windings than other types of transformers. This results in higher efficiency, as magnetic stray losses are minimized.
• Reduced losses: Due to improved magnetic coupling, eddy current losses (also known as iron loss) are also reduced in w-shaped transformers. This contributes to their increased efficiency compared to single-phase transformers.
• Flexibility: W-shaped transformers can be used in a variety of applications including power supplies, chargers and power conversion systems. They can be easily adapted to specific requirements by changing the number of windings or using different core materials.
• High power: W-shaped transformers can provide high levels of output power, making them suitable for applications requiring significant amounts of power.

Audio Transformers

Audio transformers are designed for use mainly in audio systems. They can be used to cancel high-frequency interference, combine or split audio signals, or connect circuits of different impedance and resistance. These transformers were originally designed to connect different telephone systems to each other while keeping their respective power supplies isolated, and are still often used to connect professional audio systems or system components. As magnetic devices, audio transformers are susceptible to external magnetic fields, such as those generated by wires carrying alternating current. Audio transformers using very weak signals, such as microphone signals, are often magnetically shielded to prevent unwanted influences from the magnetic nature of the mains.

Print Mount Transformers

With us you will find a variety of potted transformers for PCB mounting, with one or more secondary voltages intended for electronics. Their way of connecting is through pins to printed circuit boards. The technical parameters, such as secondary voltage and power, are indicated in the description of each of the transformers.

DIN rail transformers

DIN bus transformers are a type of mains transformers for installation in DIN bus panels. These are die-cast X-shaped high-quality fused transformers with a tool for quick installation on the busbar.