DER-57
Industrial – LNK501P
April 20, 2005
1 Introduction
This document is an engineering prototype report for a universal input, power factor
corrected power supply unit providing 12V at 250mA.
This power supply uses LinkSwitch – an integrated IC combining a 700 V high voltage
MOSFET, PWM controller, start-up, thermal shut down and fault protection circuitry. This
power supply is designed to provide a cost effective replacement for linear transformer
based Auxiliary power supplies while providing the additional benefits of universal input
range and high-energy efficiency.
This document contains the power supply specification, schematic, bill of materials,
transformer documentation, printed circuit board layout, and performance data.
Figure 1 – Prototype Circuit Board Picture
Power Integrations
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