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  2. Bifilar coil - Wikipedia

    en.wikipedia.org/wiki/Bifilar_coil

    A bifilar coil is an electromagnetic coil that contains two closely spaced, parallel windings. In electrical engineering, the word bifilar describes wire which is made of two filaments or strands. It is commonly used to denote special types of winding wire for transformers. Wire can be purchased in bifilar form, usually as different colored ...

  3. Ayrton–Perry winding - Wikipedia

    en.wikipedia.org/wiki/Ayrton–Perry_winding

    An Ayrton–Perry winding (named for William Edward Ayrton and John Perry) is a type of bifilar winding pattern used in winding wire on forms to make RF resistors. Its advantage is that the resulting coil of wire has low values of parasitic inductance and parasitic capacitance. [1] Ayrton–Perry windings of resistance wire are used to make ...

  4. Coil winding technology - Wikipedia

    en.wikipedia.org/wiki/Coil_winding_technology

    Coil winding technology. In electrical engineering, coil winding is the manufacture of electromagnetic coils. Coils are used as components of circuits, and to provide the magnetic field of motors, transformers, and generators, and in the manufacture of loudspeakers and microphones. The shape and dimensions of a winding are designed to fulfill ...

  5. Electromagnetic coil - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_coil

    Electromagnetic coil. The magnetic field lines (green) of a current-carrying loop of wire pass through the center of the loop, concentrating the field there. An electromagnetic coil is an electrical conductor such as a wire in the shape of a coil (spiral or helix). [1][2] Electromagnetic coils are used in electrical engineering, in applications ...

  6. Error amplifier (electronics) - Wikipedia

    en.wikipedia.org/wiki/Error_amplifier_(electronics)

    This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations.

  7. Common-mode signal - Wikipedia

    en.wikipedia.org/wiki/Common-mode_signal

    For sensors with very high output impedance that require very high common-mode rejection ratio, a differential amplifier is combined with input buffers to form an instrumentation amplifier. An inductor where a pair of signaling wires follow the same path through the inductor, e.g. in a bifilar winding configuration such as used in Ethernet ...

  8. Negative-feedback amplifier - Wikipedia

    en.wikipedia.org/wiki/Negative-feedback_amplifier

    A negative-feedback amplifier (or feedback amplifier) is an electronic amplifier that subtracts a fraction of its output from its input, so that negative feedback opposes the original signal. [1] The applied negative feedback can improve its performance (gain stability, linearity, frequency response, step response) and reduces sensitivity to ...

  9. Impedance matching - Wikipedia

    en.wikipedia.org/wiki/Impedance_matching

    Impedance matching. Source and load impedance circuit. In electrical engineering, impedance matching is the practice of designing or adjusting the input impedance or output impedance of an electrical device for a desired value. Often, the desired value is selected to maximize power transfer or minimize signal reflection.