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串联磷酸铁锂电池组保护电路设计 被引量:1

The circuit design of series of LiFePO_4 battery protection
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摘要 设计出了一种新型的串联锂离子电池组保护电路.该保护电路采用MOSFET开关,根据过流时电池组MOSFET电压的变化来设计过流保护电路,并通过实物验证了该保护电路能够在20ms动作,从而保护了电池组和改善了电池的性能,延长了电池的寿命. On the basis of the safety studies of the LiFePO4 battery,We analyzed the importance of the overcurrent, overvoltage and short circuit protection, and designed a new protection circuit of series of the LiFePO4 battery. The MOSFET switches is used in the protection circuit, according to the battery voltage changes over the MOSFET and the protection of overcurrent is designed in the circuit. The physical experiments verify that the protection circuit can make an action in 20ms to protect the battery pack. We also designed a charge balancing module to improve the performance of the battery and extend the battery life.
出处 《山东理工大学学报(自然科学版)》 CAS 2012年第4期87-90,共4页 Journal of Shandong University of Technology:Natural Science Edition
关键词 磷酸铁锂电池组 保护电路 短路保护 电池均衡 series of LiFePO4 battery protection circuit short circuit protection cell balancing
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