Timeline for Critique please - Arduino switching/dimming 24 V LED strip using 20 kHz PWM
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
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| Feb 7, 2023 at 15:20 | vote | accept | eemoob | ||
| Feb 7, 2023 at 9:41 | comment | added | bobflux | If the resistor is on the input, the 7815 output will be shorted to ground when the transistor turns on. Resistor limits the current so nothing will be damaged, but it will add a delay when it starts up again when the transistor turns off. | |
| Feb 7, 2023 at 6:00 | history | tweeted | twitter.com/StackElectronix/status/1622837586610855936 | ||
| Feb 7, 2023 at 3:47 | answer | added | Edin Fifić | timeline score: 2 | |
| Feb 7, 2023 at 2:52 | answer | added | Polynomial | timeline score: 6 | |
| Feb 7, 2023 at 1:37 | history | edited | ocrdu | CC BY-SA 4.0 |
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| Feb 7, 2023 at 1:03 | comment | added | eemoob | @bobflux It's on that side of the 7815 in my breadboard circuit. Is there some reason it shouldn't be in that position? I figured limiting the current one way or the other would be fine... but now I realize I must be dropping some voltage before the regulator. It must be enough to trigger the MOSFET gate anyway. Is that right? | |
| Feb 7, 2023 at 0:18 | comment | added | bobflux | R1 is on the wrong side of 7815 in the schematic | |
| Feb 6, 2023 at 23:56 | history | edited | eemoob | CC BY-SA 4.0 |
added 17 characters in body
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| Feb 6, 2023 at 23:52 | comment | added | eemoob | Oh I'm sorry! It's a 15V regulator. I'll upload a corrected schematic momentarily. I couldn't find this item in LTspice and tried to draw it in. | |
| Feb 6, 2023 at 23:04 | comment | added | Polynomial | What's L7815 in your schematic? | |
| S Feb 6, 2023 at 22:10 | review | First questions | |||
| Feb 7, 2023 at 0:41 | |||||
| S Feb 6, 2023 at 22:10 | history | asked | eemoob | CC BY-SA 4.0 |