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  2. Voltage doubler - Wikipedia

    en.wikipedia.org/wiki/Voltage_doubler

    Figure 2.Greinacher circuit. The Greinacher voltage doubler is a significant improvement over the Villard circuit for a small cost in additional components. The ripple is much reduced, nominally zero under open-circuit load conditions, but when current is being drawn depends on the resistance of the load and the value of the capacitors used.

  3. Synchronous condenser - Wikipedia

    en.wikipedia.org/wiki/Synchronous_condenser

    A synchronous condensor operates at nearly zero real power (the bottom curve). As the machine passes from underexcited to overexcited, its stator current passes through a minimum. A rotating coil [8] in a magnetic field tends to produce a sine-wave voltage. When connected to a circuit, some current will flow depending on how the voltage on the ...

  4. Charge pump - Wikipedia

    en.wikipedia.org/wiki/Charge_pump

    A charge pump is a kind of DC-to-DC converter that uses capacitors for energetic charge storage to raise or lower voltage. Charge-pump circuits are capable of high efficiencies , sometimes as high as 90–95%, while being electrically simple circuits.

  5. Parasitic capacitance - Wikipedia

    en.wikipedia.org/wiki/Parasitic_capacitance

    This equivalent circuit of part of a Tesla coil has stray capacitance between each winding and one to ground. Parasitic capacitance or stray capacitance is the unavoidable and usually unwanted capacitance that exists between the parts of an electronic component or circuit simply because of their proximity to each other.

  6. Water dispenser - Wikipedia

    en.wikipedia.org/wiki/Water_dispenser

    Bottled water dispensers can be top-mounted or bottom-loaded, depending on the design of the model. Bottled water dispensers typically use 11- or 22-liter (5- or 10-gallon) dispensers commonly found on top of the unit. Pressure coolers are a subcategory of water dispensers encompassing drinking water fountains and direct-piping water dispensers ...

  7. Water capacitor - Wikipedia

    en.wikipedia.org/wiki/Water_capacitor

    Unlike many large, industrial, high voltage capacitors, water capacitors do not require oil. Oil found in many older designs of capacitors can be toxic to both animals and humans. If a capacitor breaks open and its oil is released, the oil often finds its way into the water table, which can cause health problems over time. [13]