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  2. Equivalent series resistance - Wikipedia

    en.wikipedia.org/wiki/Equivalent_series_resistance

    The DC wire resistance is an important parameter in transformer and general inductor design because it contributes to the impedance of the component, and current flowing through that resistance is dissipated as waste heat, and energy is lost from the circuit. It can be modeled as a resistor in series with the inductor, often leading to the DC ...

  3. ESR meter - Wikipedia

    en.wikipedia.org/wiki/ESR_meter

    A typical ESR Meter. This one also measures capacitance. An ESR meter is a two-terminal electronic measuring instrument designed and used primarily to measure the equivalent series resistance (ESR) of real capacitors; usually without the need to disconnect the capacitor from the circuit it is connected to.

  4. Capacitor types - Wikipedia

    en.wikipedia.org/wiki/Capacitor_types

    R ESR, the equivalent series resistance which summarizes all ohmic losses of the capacitor, usually abbreviated as "ESR" L ESL, the equivalent series inductance which is the effective self-inductance of the capacitor, usually abbreviated as "ESL". Using a series equivalent circuit instead of a parallel equivalent circuit is specified by IEC/EN ...

  5. Dissipation factor - Wikipedia

    en.wikipedia.org/wiki/Dissipation_factor

    In a capacitor made of a dielectric placed between conductors, the typical lumped element model includes a lossless ideal capacitor in series with a resistor termed the equivalent series resistance (ESR) as shown below. [1] The ESR represents losses in the capacitor. In a good capacitor the ESR is very small, and in a poor capacitor the ESR is ...

  6. Series and parallel circuits - Wikipedia

    en.wikipedia.org/wiki/Series_and_parallel_circuits

    A series circuit with a voltage source (such as a battery, or in this case a cell) and three resistance units. Two-terminal components and electrical networks can be connected in series or parallel. The resulting electrical network will have two terminals, and itself can participate in a series or parallel topology.

  7. E series of preferred numbers - Wikipedia

    en.wikipedia.org/wiki/E_series_of_preferred_numbers

    The formula for each value is determined by the m-th root, but unfortunately the calculated values don't match the official values of all E series. = where: is rounded to 2 significant figures (E3, E6, E12, E24) or 3 significant figures (E48, E96, E192),

  8. RLC circuit - Wikipedia

    en.wikipedia.org/wiki/RLC_circuit

    Series RL, parallel C circuit with resistance in series with the inductor is the standard model for a self-resonant inductor. A series resistor with the inductor in a parallel LC circuit as shown in Figure 4 is a topology commonly encountered where there is a need to take into account the resistance of the coil winding and its self-capacitance.

  9. Polymer capacitor - Wikipedia

    en.wikipedia.org/wiki/Polymer_capacitor

    In the special case of resonance, in which the both reactive resistances X C and X L have the same value (X C =X L), the impedance will be determined by only equivalent series resistance ESR, which summarizes all resistive losses of the capacitor. At 100 kHz the impedance and the ESR have nearly the same value for polymer e-caps with ...