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Create inverting power supply with synchronous buck converter

Posted: 01 Dec 2011     Print Version  Bookmark and Share

Keywords:negative output voltage  inverting power supply  buck converter 

There are some applications that require negative output voltage to be generated from a positive input voltage. This application report presents a solution for creating an inverting power supply using a synchronous buck converter. The purpose of this application report is to discuss how to create a negative power supply using a switching regulator (buck).

The solution schematic is given along with component selection criteria and equations, so that designers can appropriately scale the solution to their own requirements. The document also includes a sample design implementation along with captured waveforms.

View the PDF document for more information.

Originally published by Texas Instruments at as "Creating an Inverting Power Supply Using a Synchronous Step-Down Regulator".

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