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  2. File:Cold cathode voltage regulator tube (schematic diagram ...

    en.wikipedia.org/wiki/File:Cold_cathode_voltage...

    This SVG diagram contains embedded raster graphics. Such images are liable to produce inferior results when scaled to different sizes (as well as possibly being very inefficient in file size). If appropriate to do so, they should be replaced with images created using vector graphics.

  3. Charge controller - Wikipedia

    en.wikipedia.org/wiki/Charge_controller

    In solar applications, charge controllers may also be called solar regulators or solar charge controllers. Some charge controllers / solar regulators have additional features, such as a low voltage disconnect (LVD), a separate circuit which powers down the load when the batteries become overly discharged (some battery chemistries are such that ...

  4. Solar controller - Wikipedia

    en.wikipedia.org/wiki/Solar_controller

    The simplest solar controller circuit uses a comparator with two temperature inputs, one at the solar panel and one at the thermal store's heat exchanger, and an output to control the pump. Commercial controllers use a microprocessor usually with a LCD display and simple user interface with a few pushbuttons.

  5. Voltage regulator - Wikipedia

    en.wikipedia.org/wiki/Voltage_regulator

    An integrated circuit voltage regulator. A voltage regulator is a system designed to automatically maintain a constant voltage. It may use a simple feed-forward design or may include negative feedback. It may use an electromechanical mechanism, or electronic components. Depending on the design, it may be used to regulate one or more AC or DC ...

  6. Voltage-regulator tube - Wikipedia

    en.wikipedia.org/wiki/Voltage-regulator_tube

    Some voltage-regulator tubes contained small amounts of radionuclides to produce a more reliable ionization. [ 1 ] The Corona VR tube is a high-voltage version that is filled with hydrogen at close to atmospheric pressure, and is designed for voltages ranging from 400 V to 30 kV at tens of microamperes.

  7. Reference designator - Wikipedia

    en.wikipedia.org/wiki/Reference_designator

    voltage regulators are often "U" for IC, pots and trimmers often "R" for resistor X: Socket connector for another item not P or J, paired with the letter symbol for that item (XV for vacuum tube socket, XF for fuse holder, XA for printed circuit assembly connector, XU for integrated circuit connector, XDS for light socket, etc.) X, XTAL, Y

  8. ‘Alcohol gene’ could predict how cocktails may affect you ...

    www.aol.com/news/alcohol-gene-could-predict...

    If you have an inherited intolerance to alcohol, a mutated gene could be the culprit. An at-home DNA test could detect whether you have the mutation, but doctors say there could be some drawbacks.

  9. Zener diode - Wikipedia

    en.wikipedia.org/wiki/Zener_diode

    In this circuit, a typical voltage reference or regulator, an input voltage, U in (with + on the top), is regulated down to a stable output voltage U out. The breakdown voltage of diode D is stable over a wide current range and holds U out approximately constant even though the input voltage may fluctuate over a wide range.