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  2. Zener diode - Wikipedia

    en.wikipedia.org/wiki/Zener_diode

    A Zener diode is a special type of diode designed to reliably allow current to flow "backwards" (inverted polarity) when a certain set reverse voltage, known as the Zener voltage, is reached. Zener diodes are manufactured with a great variety of Zener voltages and some are even variable.

  3. Electronic component - Wikipedia

    en.wikipedia.org/wiki/Electronic_component

    Zener diode – allows current to flow "backwards" when a specific set voltage is reached. Transient voltage suppression diode (TVS), unipolar or bipolar – used to absorb high-voltage spikes; Varicap, tuning diode, varactor, variable capacitance diode – a diode whose AC capacitance varies according to the DC voltage applied.

  4. Diode - Wikipedia

    en.wikipedia.org/wiki/Diode

    In the Zener diode, the concept of PIV is not applicable. A Zener diode contains a heavily doped p–n junction allowing electrons to tunnel from the valence band of the p-type material to the conduction band of the n-type material, such that the reverse voltage is "clamped" to a known value (called the Zener voltage), and avalanche does not ...

  5. p–n junction - Wikipedia

    en.wikipedia.org/wiki/P–n_junction

    Zener diodes have a low breakdown voltage. A standard value for breakdown voltage is for instance 5.6 V. A standard value for breakdown voltage is for instance 5.6 V. This means that the voltage at the cathode cannot be more than about 5.6 V higher than the voltage at the anode (though there is a slight rise with current), because the diode ...

  6. Rectifier - Wikipedia

    en.wikipedia.org/wiki/Rectifier

    An aspect of most rectification is a loss from the peak input voltage to the peak output voltage, caused by the built-in voltage drop across the diodes (around 0.7 V for ordinary silicon p–n junction diodes and 0.3 V for Schottky diodes). Half-wave rectification and full-wave rectification using a center-tapped secondary produces a peak ...

  7. Which of his family members is Trump tapping for key ... - AOL

    www.aol.com/family-members-trump-tapping-key...

    Although President-elect Donald Trump's children don't currently have White House roles in his second term, he's recently announced picks from his extended family by marriage to manage foreign ...

  8. AOL Mail - AOL Help

    help.aol.com/products/aol-webmail

    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

  9. Bipolar junction transistor - Wikipedia

    en.wikipedia.org/wiki/Bipolar_junction_transistor

    A PNP BJT will function like two diodes that share an N-type cathode region, and the NPN like two diodes sharing a P-type anode region. Connecting two diodes with wires will not make a BJT, since minority carriers will not be able to get from one p–n junction to the other through the wire.