What Are Diodes? (Interactive!)




About: Simply Electronics YouTube is a channel created to Inspire, Educate and Entertain new and experienced Electronics Enthusiasts. Join me in the exploration of the world of electronics and follow me as we learn...


Watch the video to learn about Diodes and what they do.

Try this circuit!: EveryCircuit Diodes

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(Please note: Due to the direction of electron flow in the circuit, the diode symbol does not properly reflect the direction in which current is blocked, as current would actually flow in the reverse directions shown in this video.
This is only due to the circuit using electron flow instead of conventional current flow; to be explained in a later video.

But, aside from the slight visual inaccuracies, the video still clearly shows the diode conducting current in only one direction, and opposing current in the other. This is the main point I aimed to get across)



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    4 Discussions


    2 years ago

    In your video you have the current flowing anti clockwise, in to the cathode of the diodes. That is not possible. Current flows from anode through the diode to the cathode.. please correct it as it is misleading for beginners.

    The diode will not conduct with a reverse voltage (a reverse bias) applied. Once the voltage is applied in the forward direction (positive to anode and negative to cathode) again, current will flow; in this case as the voltage is increased more current flows.

    3 replies

    Reply 2 years ago

    You make a good argument my friend. I should have switched to conventional current flow. The previous videos have used Electron flow because they have been much more focused on the aspect of electron flow in circuits. I think It may be time for me to switch to Conventional current as you are right, It will become confusing as IEC Symbols are drawn to work with conventional current. I think this short video does the job of explaining what a diode does but the flow of current may confuse some. I may fix it with an updated description and annotations, or I will switch everycircuit back to conventional flow and re-record the video.

    Thank You.


    Reply 2 years ago

    Thanks very much Sutty5. Nice idea for people who want to learn about electronics. Reading about something is one thing but having it explained and being able to see it in action makes it much easier to understand.


    Reply 2 years ago

    My pleasure Stuart. I've already made an uploaded a video to explain this. You can always support me by subscribing to my channel. Thank You!