Timeline for PNP led on when it should be off
Current License: CC BY-SA 4.0
3 events
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| Mar 25, 2020 at 21:17 | comment | added | Newbie | thanks for that. The reason why R3 is 73Ω is due to in the device there is 2 LEDs in parallel each with a forward current of 30ma per LED, with a forward voltage of 3.2V so roughly R3 should be around 56Ω. If it was 220Ω I think that could be a little too dime. But I will definitely replace R2 to 10K. On the prototype board I do have R1 right next to the base. | |
| Mar 25, 2020 at 20:29 | history | edited | Edin Fifić | CC BY-SA 4.0 |
Added the second sentence.
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| Mar 25, 2020 at 20:17 | history | answered | Edin Fifić | CC BY-SA 4.0 |