Summary:
This document is an engineering report describing two constant current and constant voltage (CC / CV) power adapters based on the DPA423G (20W) and DPA424G (30W) designs. This power adapter provides a 24V DC input voltage. Operates as a regulator at low power.
This document includes power specifications, circuit diagrams, bill of materials, transformer specifications, printed circuit board layout, and performance data.
LED backlight constant current driver PCB physical map 
LED backlight constant current driver 40V voltage output circuit diagram 
LED backlight constant current driver 60V voltage output circuit diagram 
LED backlight constant current driver 40V voltage output component list 
LED backlight constant current driver 60V voltage output component list 
LED backlight constant current driver PCB layout 
See the PDF document for details (click on the PDF file to download)
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