Timeline for Parallel transistors for brightness control of large quantity of LEDs
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 12, 2021 at 18:51 | history | edited | Spehro 'speff' Pefhany | CC BY-SA 4.0 | added 111 characters in body |
| Feb 12, 2021 at 18:50 | comment | added | Spehro 'speff' Pefhany | @JackCreasey He said he has resistors in the comments. I'll add that to the answer though just to be clear. | |
| Feb 12, 2021 at 18:44 | comment | added | MyFingerHertz | LEDs have resistors in reality, forgot to draw them in the quick diagram sketch (updated now). The general consensus seems to be use a MOSFET, so I will look into this. Thank you! | |
| Feb 12, 2021 at 18:18 | comment | added | Jack Creasey | I would add that there is no apparent current control for the LEDs shown. The only current limit in the schematic shown would be when the PN2222's run out of Hfe capability for a given base drive current. The best solution overall would be to use FETs for both the top and bottom positions. | |
| Feb 12, 2021 at 18:13 | history | answered | Spehro 'speff' Pefhany | CC BY-SA 4.0 |