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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.
The following other wikis use this file: Usage on beta.wikiversity.org Doğru Akım Devre Analizi/Devre Sembolleri; Usage on ca.wikipedia.org Efecte Zener
The symbol used to represent a particular type of diode in a circuit diagram conveys the general electrical function to the reader. There are alternative symbols for some types of diodes, though the differences are minor. The triangle in the symbols points to the forward direction, i.e. in the direction of conventional current flow.
The symbol as shown here is acceptable but could be confused with a Schottky Barrier Diode, which is a different kind of diode, and not a Zener diode. The bends on the cathode bar are different. See the Schottky diode page . To be technically correct we should also show the ISO standard symbol which has only one bend, at 90-degrees.
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Wire crossover symbols for circuit diagrams. The CAD symbol for insulated crossing wires is the same as the older, non-CAD symbol for non-insulated crossing wires. To avoid confusion, the wire "jump" (semi-circle) symbol for insulated wires in non-CAD schematics is recommended (as opposed to using the CAD-style symbol for no connection), so as to avoid confusion with the original, older style ...
Zener diode Nickname for "voltage regulator diodes" which may rely either on the Zener effect or avalanche breakdown to maintain a roughly constant voltage; the two effects have opposite temperature coefficients of voltage. Ziegler-Nichols tuning method It is a heuristic method of tuning a PID controller. zigzag transformer
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