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  2. Phantom power - Wikipedia

    en.wikipedia.org/wiki/Phantom_Power

    This results in a 12-volt potential difference with significant current capability across pins 2 and 3, which would likely cause permanent damage if applied to a dynamic or ribbon microphone. Plug-in-power (PiP) is the low-current 3–5 V supply provided at the microphone jack of some consumer equipment, such as portable recorders and computer ...

  3. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    There were two ⌀3.2 mm negative pins spaced 9.5 mm apart and two ⌀4.0 mm positive pins spaced 14.3 mm apart. Negative and positive pins were spaced 18.1 mm apart. It was used in some early transistor radio amplifiers with a Class B output stage, allowing the loud speaker to be connected between the amplifier output and the battery center tap.

  4. Power supply - Wikipedia

    en.wikipedia.org/wiki/Power_supply

    Some SMPSs have an absolute limit on their minimum current output. [2] They are only able to output above a certain power level and cannot function below that point. In a no-load condition the frequency of the power slicing circuit increases to great speed, causing the isolated transformer to act as a Tesla coil , causing damage due to the ...

  5. Electric battery - Wikipedia

    en.wikipedia.org/wiki/Electric_battery

    Lithium (lithium–iron disulfide) LiFeS 2: Li FeS 2: 1.8 1.5 1070 Expensive. Used in 'plus' or 'extra' batteries. 337 [47] Lithium (lithium–manganese dioxide) LiMnO 2: Li MnO 2: 3.0 830–1010 Expensive. Used only in high-drain devices or for long shelf-life due to very low rate of self-discharge. 'Lithium' alone usually refers to this type ...

  6. DC connector - Wikipedia

    en.wikipedia.org/wiki/DC_connector

    Often pins 1 and 2 will be negative, 3 and 4 positive for a higher current rating. Female connectors are used as supply and male connectors are used on loads. Most battery belts and power supplies output 13.2 V, but equipment can usually handle a range of 11–18 volts to accommodate battery packs of varying voltages and charging while operating.

  7. 78xx - Wikipedia

    en.wikipedia.org/wiki/78xx

    These devices support an input voltage anywhere from around 2.5 volts over the intended output voltage up to a maximum of 35 to 40 volts depending on the model, and typically provide 1 or 1.5 amperes of current (though smaller or larger packages may have a lower or higher current rating).

  8. ISO standards for trailer connectors - Wikipedia

    en.wikipedia.org/wiki/ISO_standards_for_trailer...

    Toggle Trailer connectors between the trailer and passenger car, light truck or heavy trucks with 12V systems subsection 1.1 13-pin trailer connector (ISO 11446) 1.2 7-pin trailer connector for ABS/EBS (ISO 7638-2)

  9. Voltage reference - Wikipedia

    en.wikipedia.org/wiki/Voltage_reference

    A bandgap-based reference (commonly just called a 'bandgap') uses analog circuits to add a multiple of the voltage difference between two bipolar junctions biased at different current densities to the voltage developed across a diode. The diode voltage has a negative temperature coefficient (i.e. it decreases with increasing temperature), and ...