Do you have a question involving batteries or cells?
If it's about designing, repairing or modifying an electronic circuit to which batteries are connected, you're in the right place.Everything else should go in /r/batteries:
/r/batteries is for questions about: batteries, cells, UPSs, chargers and management systems; use, type, buying, capacity, setup, parallel/serial configurations etc.
Variable voltage usb adapters have only hit the market recently, and they're not really common, or very compatible with most chargers, i think you're hetter off using a standard PD board and a step down converter to lower the voltage to 3V
But if you want to use any other voltage, you either need external circuitry to convert that voltage, or you need a programmable power supply/adjustable voltage supply
This was all the data I got ( Temu lol ) Maybe a premade 3v power supply would be easier Issue im worried bout is like ones on amazon 3vDC but like 1000mA
If you can find one sure, no problems there,maybe look up 3v led driver board
Issue im worried bout is like ones on amazon 3vDC but like 1000mA
I'm sorry i'm having issues understanding this sentence, what exactly is the problem? Seems like a perfect solution unless you need to power more than 3 of these filaments
Oh....kinda forgot I was gonna power 4
I saw the 1000mA and cause the data sheet said use less then 400mA i though would burn them out....but forgot that is split between 4 filiments
The pic u sent shows 300mA, this means the PSU needs to be able to handle at least 1200mA for 4 of them to work right
However you say it's 400mA instead, so if thst's true, then the psu needs to be at least 1600mA, i'd just get a 2000mA psu, so i don't have to worry about not having enough current
data sheet said use less then 400mA i though would burn them out
Well if it pulls more than 400mA it will probably burn out, so don't use a higher voltage that would allow it to pull a higher cureent than it was designed for
Id actually like the LEDs to be a bit dimmer , would less current make them dimmer?
Yes, you can limit the current with resistors in sealries with each filament, don't get an underpowered PSU for something like this as you'll just end up with 3 filaments going at full brightness, and one will be dimmer
And i see you attached a picture, but i can't read what it says since i'm on mobile, and mobile reddit sucks
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u/AutoModerator 2d ago
Do you have a question involving batteries or cells?
If it's about designing, repairing or modifying an electronic circuit to which batteries are connected, you're in the right place. Everything else should go in /r/batteries:
/r/batteries is for questions about: batteries, cells, UPSs, chargers and management systems; use, type, buying, capacity, setup, parallel/serial configurations etc.
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