发明名称 |
Two-stage charge equalization method and apparatus for series-connected battery string |
摘要 |
A two-stage charge equalization apparatus for a series-connected battery string includes a battery module having a plurality of batteries connected in series; a battery string having M (M≧2) battery modules connected in series; M charge control switch modules connected in parallel to each of the M battery modules; M second DC/DC converters connected to each of the M charge control switch modules; a single first DC/DC converter connected to the M second DC/DC converter; and a microprocessor controlling the charge control switch module, wherein the first DC/DC converter is inputted with an overall potential of the battery string and outputs a potential lower than the potential inputted and each of batteries composing the battery module shares the second DC/DC converter using the charge control switch module.
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申请公布号 |
US8354825(B2) |
申请公布日期 |
2013.01.15 |
申请号 |
US20080681990 |
申请日期 |
2008.10.16 |
申请人 |
SK INNOVATION CO., LTD.;KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY;LEE JOONG HUI;JANG SOO YEUP;OH JEON KEUN;MOON GUN WOO;PARK HONG SUN;KIM CHOL HO |
发明人 |
LEE JOONG HUI;JANG SOO YEUP;OH JEON KEUN;MOON GUN WOO;PARK HONG SUN;KIM CHOL HO |
分类号 |
H02J7/00 |
主分类号 |
H02J7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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