My current LED sign light has a LED driver that is external to the light. The driver is actually a part of the controller that operates the light. The driver doubles as a +5VDC power source for a Pic. The driver regulates current to 640ma to the light.
My original plan was to replace the LED driver with a pin compatible module that was pin compatible to the driver with a LM2675-5 for the pic and supplied +12VDC direct to the light. Figuring the current requirements of the light would exceed the 640ma currently being supplied.
I just got the light in and hooked it to my bench supply. It is nice and bright and consumes a mere 250ma! Well below what is supplied by the light.
The current light is on it's last legs and I am anxious to get the new light installed. Are there any issues with a LED driver driving another LED driver?
No data on the light. Just one of those cheap LED flood lights found on Ebay.
Here is the driver
http://www.luxdrive.com/content/07021_07023_V2.2.pdf
It is the 700ma adjustable version set to 640ma.
My original plan was to replace the LED driver with a pin compatible module that was pin compatible to the driver with a LM2675-5 for the pic and supplied +12VDC direct to the light. Figuring the current requirements of the light would exceed the 640ma currently being supplied.
I just got the light in and hooked it to my bench supply. It is nice and bright and consumes a mere 250ma! Well below what is supplied by the light.
The current light is on it's last legs and I am anxious to get the new light installed. Are there any issues with a LED driver driving another LED driver?
No data on the light. Just one of those cheap LED flood lights found on Ebay.
Here is the driver
http://www.luxdrive.com/content/07021_07023_V2.2.pdf
It is the 700ma adjustable version set to 640ma.
Last edited: