DER-37
16W Adapter using TOP245P
April 27, 2004
1 Introduction
This document is an engineering report describing a prototype16W power supply utilizing
a TOP245P. This power supply is designed for a sealed adapter supply.
This design is low cost, low parts count and meets EMI with no X-cap. It meets thermal
requirements with no heatsink in either primary or secondary side.
The document contains the power supply specification, schematic, bill of materials,
transformer documentation, printed circuit layout, and performance data.
Figure 1 – Populated Circuit Board Photograph. Component side (Top) and Solder side (Bottom).
Note an additional wire jumper was required on this prototype layout as shown above.
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