Timeline for Dark sensor - need 500mA output
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Apr 23, 2017 at 1:15 | comment | added | Robherc KV5ROB | @soul6002 See the additions to my answer under the "-- -- -- EDIT -- -- --" banner. | |
| Apr 23, 2017 at 1:14 | history | edited | Robherc KV5ROB | CC BY-SA 3.0 |
Added 2nd, improved circuit
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| Apr 23, 2017 at 1:02 | comment | added | Robherc KV5ROB | Also, check your voltage levels with a multimeter while the circuit is in use with different light levels. You may find that different values for R1 &/or R2 will give more desirable performance properties. Personally, I'd omit Q1 & replace it with a comparator (LM393 would work well here) to drive M1...more "discrete" transitions & less power wasted heating up your MOSFET at "partially on" points turing on/off/on transitions. | |
| Apr 22, 2017 at 16:26 | comment | added | soul6002 | a better mosfet model just like hatimB suggested. i will try this out and let you know the result | |
| Apr 19, 2017 at 17:02 | history | answered | Robherc KV5ROB | CC BY-SA 3.0 |