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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. Single-ended primary-inductor converter - Wikipedia

    en.wikipedia.org/wiki/Single-ended_primary...

    Inductors with lower series resistance allow less energy to be dissipated as heat, resulting in greater efficiency (a larger portion of the input power being transferred to the load). Capacitors with low equivalent series resistance (ESR) should also be used for C1 and C2 to minimize ripple and prevent heat build-up, especially in C1 where the ...

  5. 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 ...

  6. Electrolytic capacitor - Wikipedia

    en.wikipedia.org/wiki/Electrolytic_capacitor

    The equivalent series resistance (ESR) summarizes all resistive losses of the capacitor. These are the terminal resistances, the contact resistance of the electrode contact, the line resistance of the electrodes, the electrolyte resistance, and the dielectric losses in the dielectric oxide layer. [59]

  7. 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.

  8. ESR - Wikipedia

    en.wikipedia.org/wiki/ESR

    Equivalent series resistance, the resistive parts of the impedance of certain electrical components; Emergency sun reacquisition, an attitude control mode of the Solar and Heliospheric Observatory; Extended-support release, software that receives official security updates for an extended period of time

  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 ...