Differences Ordinary Diodes and Zener Diodes - Diodes consist of semiconductor materials and have a function to convert AC (alternating current) into DC (direct curent) voltage. Diode structure consists of P and N. one side is a P-type semiconductor and the other side is the N-type structure only so current will flow from the P to the side N.
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| physical form and symbol zener diode |
The working principle is if the pole P diodes in diode (commonly called the anode) is connected to the positive pole of the source, there will be flow of electric current in which free electrons in the N side (the cathode) will move to fill the hole resulting in drainage flow. conversely, if the P is connected to the negative battery / source, the electrons will move towards the positive terminal of the source. In the diode is not transferred electrons.
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| Physical form and symbol ordinary diode |
Overall plain ordinary diodes and zener diodes have differences include:
- by function, serves as a conventional diode rectifier, while the zener diode serves as voltage regulation.
- based on principle, can not be given the usual diode reverse voltage (given positive and negative, are given to the positive and negative) while the zener diode can.
- Zener is unique, if given reverse voltage exceeds the voltage specifications (usually written on the body diodes, for example, 5.6 volts) then he seemed to throw the excess voltage to the ground, and the voltage to parallel there will be only as voltage written on his body. For example voltage 5.6 volt written on her body, given a 9 volts, it is as if a voltage of 3.4 volts (from 9 to 5.6) of its discharged into the ground, he had missed the voltage remains 5.6volt.