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2. Inductive charging - Wikipedia

   en.wikipedia.org/wiki/Inductive_charging

   The MIT inductive power project, called WiTricity, uses a curved coil and capacitive plates. [33] [34] In 2012 the Russian private museum Grand Maket Rossiya opened featuring inductive charging on its model car exhibits. As of 2017, Disney Research has been developing and researching room-scale inductive charging for multiple devices.

3. Induction generator - Wikipedia

   en.wikipedia.org/wiki/Induction_generator

   An induction generator draws reactive excitation current from an external source. Induction generators have an AC rotor and cannot bootstrap using residual magnetization to black start a de-energized distribution system as synchronous machines do. Power factor correcting capacitors can be added externally to neutralize a constant amount of the ...

4. Doubly fed electric machine - Wikipedia

   en.wikipedia.org/wiki/Doubly_fed_electric_machine

   As a summary, a doubly fed induction machine is a wound-rotor doubly fed electric machine and has several advantages over a conventional induction machine in wind power applications. First, as the rotor circuit is controlled by a power electronics converter, the induction generator is able to both import and export reactive power.

5. Inductance - Wikipedia

   en.wikipedia.org/wiki/Inductance

   The history of electromagnetic induction, a facet of electromagnetism, began with observations of the ancients: electric charge or static electricity (rubbing silk on amber), electric current , and magnetic attraction . Understanding the unity of these forces of nature, and the scientific theory of electromagnetism was initiated and achieved ...

6. Single-ended primary-inductor converter - Wikipedia

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

   The single-ended primary-inductor converter (SEPIC) is a type of DC/DC converter that allows the electrical potential at its output to be greater than, less than, or equal to that at its input. The output of the SEPIC is controlled by the duty cycle of the electronic switch (S1).

7. Electrophorus - Wikipedia

   en.wikipedia.org/wiki/Electrophorus

   Charge conservation while using an electrophorus.. Charge in the universe is conserved. The electrophorus simply separates positive and negative charges. A positive or negative charge ends up on the metal plate (or other storage conductor), and the opposite charge is stored in another object after grounding (in the earth or the person touching the metal plate).