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Using mismatched LED panel and driver
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Topic: Using mismatched LED panel and driver (Read 1189 times)
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sjetmand
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Posts: 3
Using mismatched LED panel and driver
«
on:
August 28, 2014, 04:21:44 pm »
I've listened to The Amp Hour for a few years but this is my first forum post, so please forgive me if I lapse on any rules.
For reasons out of my control, I am stuck using a particular LED driver and LED panel for a project.
This is the 3w / 300ma driver:
http://www.ebay.com/itm/New-85-265V-300MA-1-3x1W-Watt-High-Power-LED-Light-lamp-Driver-Power-Supply-/111344223557?pt=LH_DefaultDomain_0&hash=item19eca20545
And this is the LED panel :
http://www.ebay.com/itm/310934992692?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
The panel is happiest at around 11v 150ma. When I hook the two up as is, the panel gets 13v, gets crazy hot, and invariably begins to flicker.
From what I can muster, this is the driver's circuit layout (attached). Using an SM7523B IC. I tried replacing the resistor at the CS (current sense) input with a slightly higher value (4.7ohm vs 2.1ohm) without much luck.
Any ideas of how I could either modify the driver to output less current, or the panel to draw more safely?
Thanks everyone.
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