Rectifier Diode Current Flow: Direction from Point A to B, Positive or Negative?

Question

Hello, I have such a trivial question, please write me in what direction the current flows through the rectifying diode from point A to B. Ie. is there + or - at point A . Where in fig 2. there are points A and B in Fig. 1. Greetings.

zodiak318 · Accepted Answer

I confirm .

zodiak318 · Answer

In order for the diode to conduct, the cathode (strip) must be connected in the - side of the power supply, ie in Fig. 2 it is the other way around.

silvvester · Answer

and to make it happier, the electrons flow from the negative to the positive pole but contractually it is as a colleague wrote.

done · Answer

Thank you very much for the answer. So this drawing is good greetings

KKK · Answer

The questioner did not specify what this information was needed for, and now looking at these drawings, I think whether it will end up with shooting off some 8O electrolyte.

Paweł Es. · Answer

Unfortunately, nothing beautiful is obvious. While Catholic, Lutheran, Pentecostal (i.e. generally Western) LEDs have a cathode where there is a dash (or a spot) on the housing, Orthodox and non-believing LEDs (from the former USSR) have the reverse designation and the color means the anode. This should be taken into account and always check the diodes of unknown origin with a tester.


ANODA           KATODA
-----------|>|----

For the diode to conduct this, the anode must have a more positive voltage than the cathode.

kilerOS · Answer

yes in forward direction for silicon 0.7V potential difference, for germanium 0.3V :)

probably out of politeness and not messing with your colleague, you missed the fact that diodes were conducted in the opposite direction, called the zener effect :)

The first page in the search engine shows us this:
http://www.tranzystor.pl/tekst/teksty/a_elementya.txt.html

Cheers, KilerOS.

PS.

Paweł Sujko wrote:
For the diode to conduct this, the anode must have a more positive voltage than the cathode.

and if both potentials are negative, which voltage is more positive?

Paweł Es. · Answer

A colleague, who was also polite, asked in the first post about a RECTIFIER diode where the Zener effect occurs at such voltages that it is useless and when it occurs it usually only once and involves the need to replace the element. and if both potentials are negative, which voltage is more positive? [/ quote] If we have -5 and -4.3 then -4.3 is more positive (i.e. greater) than -5, so the current will flow from the -4.3V point to the -5V point.

Vujek · Answer

congratulations on your ingenuity we have more positive and more negative tensions all in all a cool, humorous term ... greetings

Rectifier Diode Current Flow: Direction from Point A to B, Positive or Negative?

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