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ADVANCED TOPICS IN ELECTRICAL ENGINEERING – ATEE 2017

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Case study for designing a battery charger with minimum required components

The paper is a case study for finding a simple solution of a battery charger using the LM338 device and its built-in characteristics. We considered the case of Lead-acid batteries charged with constant voltage. The authors made extended tests of the device for using the natural current limiter of LM338 and its safe area protection. One of the goals was to determine which is the temperature variation of its maximum current that was missing from the specifications. A cooling method with Peltier module was tested. A corelation between the output characteristics of LM338 and rectifier module was done in order to adjust the output current of LM338.

Author(s):

Viorel Constantin PETRE    
University Politehnica of Bucharest
Romania

Constantin Daniel OANCEA    
University Politehnica of Bucharest
Romania

 

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