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Build a simple, isolated bias supply

Posted: 25 Apr 2011     Print Version  Bookmark and Share

Keywords:sensing  communication circuits  supply-voltage 

Have you ever come across the need to generate an isolated power supply for gate drive, isolated sensing or communication circuits? In this article, we will take a look at a circuit that can do this with minimal parts count, complexity, and cost. This circuit finds use when you have a low input voltage available and the powered circuits allow some (five per cent) supply-voltage variation.

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