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  2. Toroidal inductors and transformers - Wikipedia

    en.wikipedia.org/wiki/Toroidal_inductors_and...

    Small toroidal inductors with ferrite core Traditional transformers wound on rectangular-shaped cores. Interior of a linear power supply with toroidal mains transformer. Toroidal inductors and transformers are inductors and transformers which use magnetic cores with a toroidal (ring or donut) shape.

  3. Transformer types - Wikipedia

    en.wikipedia.org/wiki/Transformer_types

    The power supply toroidal transformer is on right Five audio transformers for various line level purposes. The two black boxes on the left contain 1:1 transformers for splitting signals, balancing unbalanced signals , or isolating two different AC ground systems to eliminate buzz and hum.

  4. Bifilar coil - Wikipedia

    en.wikipedia.org/wiki/Bifilar_coil

    Bifilar wound toroidal transformer, also known as a common-mode choke. A different type of bifilar coil is used in some relay windings and transformers used for a switched-mode power supply to suppress back-emf. In this case, the two wire coils are closely spaced and wound in parallel but are electrically isolated from each other.

  5. Power supply - Wikipedia

    en.wikipedia.org/wiki/Power_supply

    A simple general-purpose desktop power supply used in electronic labs, with power output connector seen at lower-left and power input connector (not shown) located at the rear Interior of high-end linear power supply with toroidal mains transformer. A power supply is an electrical device that supplies electric power to an electrical load.

  6. Transformer - Wikipedia

    en.wikipedia.org/wiki/Transformer

    In electrical engineering, a transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits.A varying current in any coil of the transformer produces a varying magnetic flux in the transformer's core, which induces a varying electromotive force (EMF) across any other coils wound around the same core.

  7. Ferrite core - Wikipedia

    en.wikipedia.org/wiki/Ferrite_core

    The ferrite cores used for power transformers work in the low-frequency range (1 to 200 kHz usually [2]) and are relatively large in size, can be toroidal, shell, or shaped like the letters 'C', 'D', or 'E'.

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