can anyone help me build something to test led strips

[mattstolte]

I wanna build something that I can hook up to each individual led strip to light them up any help

[lookimback]

Re: can anyone help me build something to test led strips

Depends on how many LEDs you have in series on the strip. Figure about 3.2 volts times the number of LEDs. Sometimes I just use three 9 volt batteries connected in series when I have 10 or 12 LEDs on a strip. If your intent is to test without opening the panel, also remember to test the current each strip pulls. A strip with a shorted LED will still light, but if the power supply is designed with overcurrent protection, it will cause it to shut down.

[SteveNielsen]

Re: can anyone help me build something to test led strips

http://www.ebay.com/itm/Precision-30...-/361380526604

[lookimback]

Re: can anyone help me build something to test led strips

http://www.ebay.com/itm/Precision-30...-/361380526604

That would definitely work, though not as fun as building your own.

[budm]

Re: can anyone help me build something to test led strips

0~60V will be more useful for testing the LED strip up to the point.
http://www.ebay.com/itm/5A-60V-Preci...kAAOSw~bFWJNAj

[lookimback]

Re: can anyone help me build something to test led strips

0~60V will be more useful for testing the LED strip up to the point.

Would there be a risk of over powering some strips with 60V or do they all use at least that much?

[fzabkar]

Re: can anyone help me build something to test led strips

IMHO voltage sources are inappropriate for testing LEDs. I would build a 150mA current source.

Would it be possible to adapt the electronics used in 12/24V LED panels for RVs?

[budm]

Re: can anyone help me build something to test led strips

Would there be a risk of over powering some strips with 60V or do they all use at least that much?

That power supply has adjustable CC mode, same for the 30V version, that is the key, you need to set the current limit.
If you have 30 White LEDs in series, 60V is not going to be able to light the LEDs.

[SteveNielsen]

Re: can anyone help me build something to test led strips

0~60V will be more useful for testing the LED strip up to the point.
http://www.ebay.com/itm/5A-60V-Preci...kAAOSw~bFWJNAj

I want one of those!

[lookimback]

Re: can anyone help me build something to test led strips

That power supply has adjustable CC mode, same for the 30V version, that is the key, you need to set the current limit.

Now it makes sense to me. Thank you.

[fzabkar]

Re: can anyone help me build something to test led strips

Here is another approach using a cheap LED inverter (US$15 - $20):

https://people.xiph.org/~xiphmont/th...pleboost.shtml
https://people.xiph.org/~xiphmont/th...continuous.png
https://cdn.badcaps-static.com/pdfs/...0c5ce1ce7a.pdf (DF6113 datasheet)

You could program the LED current via Rout1 and Rout2. Rout2 could be varied either by using jumpers or by way of a rotary switch.

The output voltage limit could be set by varying R2, or by adding a resistor in parallel.

The output power limit is determined by Rmos.

The IC's datasheet recommends a maximum output/input ratio of 5:1, so a 12V input should allow for a maximum boost voltage of 60V.

[tom66]

Re: can anyone help me build something to test led strips

10mA would be more than useful for lighting up LEDs. You could design a boost converter to output say 300V at up to 10mA, with direct current limiting, and it would drive most LED strips.

[ReeceyBurger123]

Re: can anyone help me build something to test led strips

Why have you started a new thread ? I gave you advice on how to build a small set up using two double A batteries in series. This little set up costs very little and works great.
I will link the video:

https://m.youtube.com/watch?v=eEJoPCa7Kt0

[budm]

Re: can anyone help me build something to test led strips

He wants to light up the whole LED strip.

[ReeceyBurger123]

Re: can anyone help me build something to test led strips

Ahh right ok my bad.

[vinceroger69]

Re: can anyone help me build something to test led strips

maybe something like this?
https://www.youtube.com/watch?v=ZSJ4ETkLTF4

[budm]

Re: can anyone help me build something to test led strips

Notes about the LEDs, some of those LED uses in the edge lit type strip are two LEDs in one package (two LEDs connected in series), so if it has 20 LEDs bodies, it actually has 40 LEDs so when you test it based on 3V per LED, the strip will not light with what you think the supply Voltage should be.

[budm]

Re: can anyone help me build something to test led strips

High Voltage adjustable power supply with current limit.
You can use two 6.3V filamen transformer hooked up back to back to give isolate 120VAc to supply rectified 170VDC for feeding the circuit.