Basic Tutorial: "Biasing a Diode"
utopian-io·@morbyjohn·
0.000 HBDBasic Tutorial: "Biasing a Diode"
#### What Will I Learn? In this video tutorial, you will learn some information about one of the basic components in electronics, the *DIODE*. ♦ Knowing more what is a diode ♦ Learning the two types of biasing a diode #### Introduction The video below shows you on how to properly bias a diode, no requirements needed since I just explained it in written form. #### Difficulty - Basic #### Description > Knowing more the basic electronic devices which are used since now and then. One of the basic electronic device which have greatly cultivated in the world of electronics is the DIODE. ## What is a Diode? A diode is a semiconductor device with two terminals. It is use to control the direction of current in an electronic circuits. It is a bidirectional and nonlinear device which can either pass or block current, formed by merging P and N type materials. The negative side of this component is the kathode while the positive side known to as the anode When we say bidirectional, it means to move or take place in two usual directions. It is also nonlinear due to its operation, unlike the other devices that follows a linear curve, diodes operates once it reaches its threshold voltage. Threshold voltage is the desired value to operate a diode.  [Image Credit](https://www.electrical4u.com/diode-working-principle-and-types-of-diode/) Note : *silicon diode's threshold voltage = 0.7V* *germanium diode's threshold voltage = 0.3V* ## Construction of a Diode. The boundary of the merged P and N type materials is called PN Junction. The PN Junction is also referred to as the depletion region, the region in the diode that separates the P and N type. It is a dielectric material.  [Image Credit](https://en.wikibooks.org/wiki/Semiconductor_Electronics/Diode/Construction_and_Operation) # Biasing the Diode ➣ *Forward Bias* The holes from the P material will diffuse to the N material and thus hole current flows. The electrons from the N material will diffuse to the P material and thus electron flows. In this bias, the flow of current is said to be the forward current. The forward current flows proportionally with the forward voltage for as long as the threshold voltage is reached. ➣ *Reverse Bias* The electrons from the N-type materials will be attracted by the positive potential at the cathode. The holes from the P-type will be attracted by the negative potential at the anode. The depletion region widens with the increase in reverse voltage, thus, turning the device off. However, there is a flow of minority carriers called as the LEAKAGE CURRENT. #### Video Tutorial > To elaborate more how to perform the two types of biasing technique, click the video inserted. <iframe width="560" height="315" src="https://www.youtube.com/embed/AgtM4Ms2g4g" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe> #### Curriculum This is my first appearance in this community. I hope you have gained knowledged from this tutorial even for a little information <br /><hr/><em>Posted on <a href="https://utopian.io/utopian-io/@morbyjohn/basic-tutorial-biasing-a-diode">Utopian.io - Rewarding Open Source Contributors</a></em><hr/>