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  2. Series and parallel circuits - Wikipedia

    en.wikipedia.org/wiki/Series_and_parallel_circuits

    If the cells of a battery are connected in parallel, the battery voltage will be the same as the cell voltage, but the current supplied by each cell will be a fraction of the total current. For example, if a battery comprises four identical cells connected in parallel and delivers a current of 1 ampere , the current supplied by each cell will ...

  3. HP 35s - Wikipedia

    en.wikipedia.org/wiki/HP_35s

    The calculator is powered by two CR2032 button cells connected in parallel, which it is advised to replace one at a time, to avoid memory loss. [ 5 ] It was initially supplied with a hard zippered clamshell case with a pocket for notes, and a printed manual, [ 8 ] but this was later changed to a slipcase made of vinyl-covered cardboard with ...

  4. Shunt generator - Wikipedia

    en.wikipedia.org/wiki/Shunt_generator

    Generator separately excited by battery Self exciting generators Series on left, shunt on right. A shunt generator is a type of electric generator in which field winding and armature winding are connected in parallel, and in which the armature supplies both the load current and the field current for the excitation (generator is therefore self excited).

  5. Millman's theorem - Wikipedia

    en.wikipedia.org/wiki/Millman's_theorem

    In electrical engineering, Millman's theorem [1] (or the parallel generator theorem) is a method to simplify the solution of a circuit. Specifically, Millman's theorem is used to compute the voltage at the ends of a circuit made up of only branches in parallel .

  6. Source transformation - Wikipedia

    en.wikipedia.org/wiki/Source_transformation

    Source transformations are easy to compute using Ohm's law.If there is a voltage source in series with an impedance, it is possible to find the value of the equivalent current source in parallel with the impedance by dividing the value of the voltage source by the value of the impedance.

  7. RLC circuit - Wikipedia

    en.wikipedia.org/wiki/RLC_circuit

    The properties of the parallel RLC circuit can be obtained from the duality relationship of electrical circuits and considering that the parallel RLC is the dual impedance of a series RLC. Considering this, it becomes clear that the differential equations describing this circuit are identical to the general form of those describing a series RLC.

  8. Equivalent circuit - Wikipedia

    en.wikipedia.org/wiki/Equivalent_circuit

    The electrical behavior of a Lithium-ion battery cell is often approximated by an equivalent circuit model. Such a model consists of a voltage generator driven by the state of charge , representing the open-circuit voltage of the cell, a resistor representing the internal resistance of the cell, and some RC parallels to simulate the dynamic ...

  9. Miller theorem - Wikipedia

    en.wikipedia.org/wiki/Miller_theorem

    The original Miller effect is implemented by capacitive impedance connected between the two nodes. Miller theorem generalizes Miller effect as it implies arbitrary impedance connected between the nodes. It is supposed also a constant coefficient ; then the expressions above are valid. But modifying properties of Miller theorem exist even when ...