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  2. Direct coupling - Wikipedia

    en.wikipedia.org/wiki/Direct_coupling

    In electronics, direct coupling or DC coupling (also called conductive coupling [1] and galvanic coupling) is the transfer of electrical energy by means of physical contact via a conductive medium, in contrast to inductive coupling and capacitive coupling.

  3. Coupling (electronics) - Wikipedia

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

    Coupling can be deliberate as part of the function of the circuit, or it may be undesirable, for instance due to coupling to stray fields. For example, energy is transferred from a power source to an electrical load by means of conductive coupling , which may be either resistive or direct coupling .

  4. Capacitive coupling - Wikipedia

    en.wikipedia.org/wiki/Capacitive_coupling

    Capacitive coupling is the transfer of energy within an electrical network or between distant networks by means of displacement current between circuit(s) nodes, induced by the electric field. This coupling can have an intentional or accidental effect. Capacitive coupling from high-voltage power lines can light a lamp continuously at low intensity.

  5. Output transformerless - Wikipedia

    en.wikipedia.org/wiki/Output_transformerless

    Output transformerless (OTL) is a type of vacuum tube audio power amplifier, which omits an output transformer for the purpose of greater linearity and fidelity. Conventional vacuum tube amplifier designs rely upon an output transformer to couple the amplifier's output stage to the loudspeaker.

  6. Capacitor - Wikipedia

    en.wikipedia.org/wiki/Capacitor

    Polyester film capacitors are frequently used as coupling capacitors. Because capacitors pass AC but block DC signals (when charged up to the applied DC voltage), they are often used to separate the AC and DC components of a signal. This method is known as AC coupling or "capacitive coupling".

  7. Applications of capacitors - Wikipedia

    en.wikipedia.org/wiki/Applications_of_capacitors

    This method is known as AC coupling or "capacitive coupling". Here, a large value of capacitance, whose value need not be accurately controlled, but whose reactance is small at the signal frequency, is employed.

  8. Coupling coefficient of resonators - Wikipedia

    en.wikipedia.org/wiki/Coupling_coefficient_of...

    Summation of the inductive and capacitive coupling coefficients is performed by formula [3] = + +. (8) This formula is derived from the definition (6) and formulas (4) and (7). Note that the sign of the coupling coefficient itself is of no importance. Frequency response of the filter will not change if signs of all the coupling coefficients ...

  9. Distributed-element circuit - Wikipedia

    en.wikipedia.org/wiki/Distributed-element_circuit

    The coupling can be direct or indirect. In indirect coupling, the two lines are run closely together for a distance with no screening between them. The strength of the coupling depends on the distance between the lines and the cross-section presented to the other line. In direct coupling, branch lines directly connect the two main lines ...