Power inverter is bidirectional

by Tom Napier, North Wales, PA; edited by Bill Travis and Anne Watson Swager, EDN, Aug 02 2001

Focus:
For applications with positive and negative battery buses that may become unevenly loaded, a symmetrical flyback converter based on a 555 timer IC serves as an inverting dc transformer and swaps charges between the two battery buses to balance the charges on the two batteries.

What you’ll learn:

• How to build a bidirectional power inverter for balancing charge between batteries of opposite polarity

Notes:
An EDN Design Idea

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