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Developments in battery stack voltage measurement

Posted: 09 Dec 2008 ?? ?Print Version ?Bookmark and Share

Keywords:stacks battery? Linear Technology? measurement voltage?

Automobiles, aircraft, marine vehicles, UPS and telecom hardware represent areas utilizing series connected battery stacks. These stacks of individual cells may contain many units, reaching potentials of hundreds of volts. In such systems, it is often desirable to accurately determine each individual cell�s voltage. Obtaining this information in the presence of the high ?common mode? voltage generated by the battery stack is more difficult than might be supposed.

The battery stack problem has been around for a long time. Its deceptively simple appearance masks a stubbornly resistant problem. Various approaches have been tried, with varying degrees of success.

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