Charger for Lead-Acid Batteries
Ibraheem Idrees1, Yassir Mohammad2

1Ibraheem, Electrical power and Machines, Mosul/ Engineering/Mosul, Iraq,
2Yassir, Electrical power and Machines, Mosul / Engineering/ Mosul, Iraq.

Manuscript received on October 11, 2013. | Revised Manuscript received on October 15, 2013. | Manuscript published on October 25, 2013. | PP:67-69 | Volume-1, Issue-12, October 2013. | Retrieval Number: L05311011213/2013©BEIESP

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Abstract: In this paper some important charging method for rechargeable batteries and its charging circuits are introduced. A smart battery charger circuit of about (225 watt) based on a dc/dc half-bridge converter is presented, designed and analyzed in this research. This charger is able to control the values of the load voltage and current and then, maintain them at a desirable value. A first converter is used to convert the grid 50 Hz electrical quantities into dc quantities. A second converter adjusts the levels to the values required by the battery and moreover, provides a galvanic isolation. MATLAB/Simulink program is used to simulate the presented charging circuit, and model of lead-acid battery is used to simulate the battery performance. The main results which obtained from applying the constant voltage method, constant current constant voltage method, and modified constant current constant voltage method are highlighted and investigated.
Keywords: Rechargeable batteries, charger ,Battery Charging Method , Matlab simulation.