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  2. Power inverter - Wikipedia

    en.wikipedia.org/wiki/Power_inverter

    A power inverter, inverter, or ... Waveform produced by a cigarette lighter 12 volt DC to 120 V AC 60 Hz inverter. The modified sine wave is the sum of two square ...

  3. Automobile auxiliary power outlet - Wikipedia

    en.wikipedia.org/wiki/Automobile_auxiliary_power...

    The use of cigarette lighter receptacles to supply 12 volt DC power is an example of backward compatibility to a de facto standard. As a power connector, the lighter receptacle is larger, harder to use and less reliable than other DC connectors [citation needed]. Cigarette lighter receptacles are in widespread use in many highway vehicles and ...

  4. AC adapter - Wikipedia

    en.wikipedia.org/wiki/AC_adapter

    An AC adapter or AC/DC adapter (also called a wall charger, power adapter, power brick, or wall wart) [1] is a type of external power supply, often enclosed in a case similar to an AC plug. [2] AC adapters deliver electric power to devices that lack internal components to draw voltage and power from mains power themselves.

  5. DC connector - Wikipedia

    en.wikipedia.org/wiki/DC_connector

    A 12–Volt cigar lighter plug. The automobile auxiliary power outlet is also called a cigarette lighter receptacle, or cigar lighter receptacle, since it was originally designed as a lighter for cigars—hence its rather large size. Nowadays, it is used to power automotive accessories such as portable inverters, mobile phone chargers and ...

  6. Rectifier - Wikipedia

    en.wikipedia.org/wiki/Rectifier

    Converting DC power from one voltage to another is much more complicated. One method of DC-to-DC conversion first converts power to AC (using a device called an inverter), then uses a transformer to change the voltage, and finally rectifies power back to DC. A frequency of typically several tens of kilohertz is used, as this requires much ...

  7. Split-phase electric power - Wikipedia

    en.wikipedia.org/wiki/Split-phase_electric_power

    In a so-called balanced power system, sometimes called "technical power", an isolation transformer with a center tap is used to create a separate supply with conductors at balanced voltages with respect to ground. The purpose of a balanced power system is to minimize the noise coupled into sensitive equipment from the power supply.

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