Why do you teach your students to waste current in (there / your) bad designing, by running your LED at max current? - As can be seen in your Video an LED can go short circuit and burn out the Resister 0:25 - Your suggested LED resister, At 470 Ohm 1/4W, VxI=W. 10 x 0.020 = 0.200W. The current flow from 12V can max out to = 12 / 470 = 0.026Amp and that can over drive the LED and shorten the life of the LED. Also, If the LED go's short circuit, the 470 ohm 1/4W resister will make the magic smoke. That is bad design. So, Far better to set a lower current and under run the LED for longer LED life, By using a 720 Ohm Resister. 12 / 720 = 0.017Amp max current flow OR lower the LED current in your equation to 0,015Amp, 10 / 0.015 = 667 Ohm resister, use the 620 Ohm, 10 x 0.015 = 0.150W. 4:43 Not as you say 10 x 20 = 200W = Wrong!!! - But 10 x 0.020 = 0.200W But that is Way to close to the resisters 1 / 4 max tolerance limit of 1 / 4 = 0.250W. 9:34 Still over driving the LEDS current to max tolerance = bad design 9:34
Yes, and there are literally HUNDREDS of voiceover narrators looking for work through any number of websites. Even dirt cheap on Fiverr. Yet…we get the free robo-voice. 👎🏻
basic voltage loop: V+, V_R, Vf=(diode) basic current loop: If which = led forward current desired so's NOT to exceed led If_max. so then V+ = If × R + Vf rearranged (V+ - Vf)/If = R
Yes, the resistor is required to limit current and most LEDs are 20mA to 30mA so you chose the resistor to limit the current to that And you select the resistor that has the capacity to dissipate the energy that is given off as heat
Very nice tutorial sir, very logical and according to law.
Loud n clear..👌
Over and out.
❤❤❤
Why do you teach your students to waste current in (there / your) bad designing, by running your LED at max current? - As can be seen in your Video an LED can go short circuit and burn out the Resister 0:25 - Your suggested LED resister, At 470 Ohm 1/4W, VxI=W. 10 x 0.020 = 0.200W. The current flow from 12V can max out to = 12 / 470 = 0.026Amp and that can over drive the LED and shorten the life of the LED. Also, If the LED go's short circuit, the 470 ohm 1/4W resister will make the magic smoke. That is bad design. So, Far better to set a lower current and under run the LED for longer LED life, By using a 720 Ohm Resister. 12 / 720 = 0.017Amp max current flow OR lower the LED current in your equation to 0,015Amp, 10 / 0.015 = 667 Ohm resister, use the 620 Ohm, 10 x 0.015 = 0.150W. 4:43 Not as you say 10 x 20 = 200W = Wrong!!! - But 10 x 0.020 = 0.200W But that is Way to close to the resisters 1 / 4 max tolerance limit of 1 / 4 = 0.250W. 9:34 Still over driving the LEDS current to max tolerance = bad design 9:34
This is AI 😂😂😂
I have come to loathe these AI voices narrating poorly worded scripts even when they are informative..
I've also seen ones with guys having such strong accents it can be very hard to understand. So I'll take the AI.
Yes, and there are literally HUNDREDS of voiceover narrators looking for work through any number of websites. Even dirt cheap on Fiverr. Yet…we get the free robo-voice. 👎🏻
thank you very well explained for this old DIY
Have a good Thanksgiving
Can i use potential controller instead of resistor?
510 Ohms is closer to 500 than 470.
basic voltage loop: V+, V_R, Vf=(diode)
basic current loop: If
which = led forward current desired so's NOT to exceed led If_max.
so then
V+ = If × R + Vf
rearranged
(V+ - Vf)/If = R
Pl check audio. One more voice in a different language is coming
"What can happen to your LED Diode" - "What can happen to your Light Emitting Diode Diode". 🙂
exactly
It is a current limit resistor to control the current through the LED. Calling it Protection Resistor is misleading.
Yes, the resistor is required to limit current and most LEDs are 20mA to 30mA so you chose the resistor to limit the current to that
And you select the resistor that has the capacity to dissipate the energy that is given off as heat
10 divided by .020, 20mA in amps =.020Amps, not 10 /20 = .5ohms you should explain what units are required for the formula
LED diode? Light Emitting Diode.. Diode?
Why are you Using AI bot for Narration? Just curious!
Weird recommendations I'm getting
10k ohm for a 12 volt power supply
Brown- black-red-gold bands 10%
It’s not an led diode. It is an led aka light emitting diode.
A Light Emitting Diode Diode? Your title is redundant
AI crap