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  2. Operational amplifier - Wikipedia

    en.wikipedia.org/wiki/Operational_amplifier

    Pins are labeled as listed above. An operational amplifier (often op amp or opamp) is a DC-coupled electronic voltage amplifier with a differential input, a (usually) single-ended output, [ 1] and an extremely high gain. Its name comes from its original use of performing mathematical operations in analog computers.

  3. Ampere-hour - Wikipedia

    en.wikipedia.org/wiki/Ampere-hour

    An ampere-hour or amp-hour (symbol: A⋅h or A h; often simplified as Ah) is a unit of electric charge, having dimensions of electric current multiplied by time, equal to the charge transferred by a steady current of one ampere flowing for one hour, or 3,600 coulombs. [ 1][ 2] The commonly seen milliampere-hour (symbol: mA⋅h, mA h, often ...

  4. Op amp integrator - Wikipedia

    en.wikipedia.org/wiki/Op_amp_integrator

    Op amp integrator. The operational amplifier integrator is an electronic integration circuit. Based on the operational amplifier (op-amp), it performs the mathematical operation of integration with respect to time; that is, its output voltage is proportional to the input voltage integrated over time.

  5. Inrush current - Wikipedia

    en.wikipedia.org/wiki/Inrush_current

    Inrush current. Inrush current, input surge current, or switch-on surge is the maximal instantaneous input current drawn by an electrical device when first turned on. Alternating-current electric motors and transformers may draw several times their normal full-load current when first energized, for a few cycles of the input waveform.

  6. Instrumentation amplifier - Wikipedia

    en.wikipedia.org/wiki/Instrumentation_amplifier

    Instrumentation amplifier. An instrumentation amplifier (sometimes shorthanded as in-amp or InAmp) is a type of differential amplifier that has been outfitted with input buffer amplifiers, which eliminate the need for input impedance matching and thus make the amplifier particularly suitable for use in measurement and test equipment.

  7. Ampere-turn - Wikipedia

    en.wikipedia.org/wiki/Ampere-turn

    Ampere-turn. The ampere-turn (symbol A⋅t) is the MKS (metre–kilogram–second) unit of magnetomotive force (MMF), represented by a direct current of one ampere flowing in a single-turn loop. [ 1] Turns refers to the winding number of an electrical conductor composing an electromagnetic coil. For example, a current of 2 A flowing through a ...

  8. Input offset voltage - Wikipedia

    en.wikipedia.org/wiki/Input_offset_voltage

    Input offset voltage. The input offset voltage ( ) is a parameter defining the differential DC voltage required between the inputs of an amplifier, especially an operational amplifier (op-amp), to make the output zero (for voltage amplifiers, 0 volts with respect to ground or between differential outputs, depending on the output type). [ 1]

  9. Operational amplifier applications - Wikipedia

    en.wikipedia.org/wiki/Operational_amplifier...

    Operational amplifier applications. This article illustrates some typical operational amplifier applications. A non-ideal operational amplifier's equivalent circuit has a finite input impedance, a non-zero output impedance, and a finite gain. A real op-amp has a number of non-ideal features as shown in the diagram [clarification needed], but ...

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