Voltage protect portable devices

July 1, 2008 by  
Filed under Supplies and Accessories

Portable electronic systems require external supply from a wall adapter (AC/DC sub-system) to charge the internal battery. Now, battery packs are based on Lithium technology, which decreases the total weight of the portable solution on one hand, yet imposes additional challenges on another. For example, a bad charge sequence can induce a Li+ temperature increase, […]

Measuring battery current with precision

June 27, 2008 by  
Filed under Electronic Industrial

How long will it run? When power fails, many home and commercial alarm systems go to a backup battery, most commonly a 12-volt sealed leadacid type. If you’re able to accurately sense the current draw, and the battery is well-characterised, you’ll be able to accurately determine the amount of time remaining before your mission-critical system […]