Timeline for How to PWM-drive a N-channel non-logic level power MOSFET with a 3.3V signal?

13 events

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Apr 13, 2017 at 12:32	history	edited	CommunityBot		replaced http://electronics.stackexchange.com/ with https://electronics.stackexchange.com/
Dec 18, 2015 at 14:10	history	edited	0x2b3bfa0	CC BY-SA 3.0	edited body
Dec 18, 2015 at 14:00	answer	added	Andy aka		timeline score: 2
Dec 18, 2015 at 13:55	comment	added	0x2b3bfa0		@Andyaka: Done!
Dec 18, 2015 at 13:54	history	edited	0x2b3bfa0	CC BY-SA 3.0	edited body
Dec 18, 2015 at 13:51	comment	added	Andy aka		The current source is back to front but I'd just add a note saying it's current limited to 300 mA.
Dec 18, 2015 at 13:48	comment	added	0x2b3bfa0		@Andyaka: What should be? i.sstatic.net/t3iai.png
Dec 18, 2015 at 13:42	comment	added	Andy aka		Then don't confuse folk by showing it as a constant voltage. Nobody here is a mind reader.
Dec 18, 2015 at 13:40	comment	added	0x2b3bfa0		@Andyaka: The V1 supply is a constant current power supply at 300mA
Dec 18, 2015 at 13:29	comment	added	Andy aka		That circuit won't work (more later) but what are the LEDs i.e. what spec (spec.pdf data sheet and no links to ebay etc.) are they and, are you aware that forcing a fixed voltage across 1 or more LEDs in series is a recipe for disaster unless there is a current limiting mechanism.
Dec 18, 2015 at 12:55	history	edited	0x2b3bfa0	CC BY-SA 3.0	added 319 characters in body
Dec 18, 2015 at 12:42	history	edited	0x2b3bfa0	CC BY-SA 3.0	added 136 characters in body
Dec 18, 2015 at 12:37	history	asked	0x2b3bfa0	CC BY-SA 3.0