US 11,817,723 B2
Large-format battery management system with in-rush protection using multiple thermistors
Jianfei Liu, Guangdong Province (CN); Jujie Xia, Guangdong Province (CN); Youwu Chen, Guangdong Province (CN); and Zhengyi Zhou, Guangdong Province (CN)
Assigned to Inventus Power, Inc., Woodridge, IL (US)
Filed by Inventus Power, Inc., Woodridge, IL (US)
Filed on Nov. 21, 2022, as Appl. No. 17/991,512.
Application 17/991,512 is a continuation of application No. 17/549,398, filed on Dec. 13, 2021, granted, now 11,509,144.
Application 17/549,398 is a continuation of application No. PCT/CN2021/131937, filed on Nov. 19, 2021.
Application PCT/CN2021/131937 is a continuation in part of application No. 17/395,987, filed on Aug. 6, 2021, granted, now 11,699,908.
Application 17/395,987 is a continuation of application No. 17/183,422, filed on Feb. 24, 2021, granted, now 11,095,140, issued on Aug. 17, 2021.
Application 17/183,422 is a continuation of application No. 16/937,931, filed on Jul. 24, 2020, granted, now 10,944,278, issued on Mar. 9, 2021.
Application 16/937,931 is a continuation of application No. PCT/CN2020/093886, filed on Jun. 2, 2020.
Application 17/183,422 is a continuation of application No. 16/937,979, filed on Jul. 24, 2020, granted, now 10,944,279, issued on Mar. 9, 2021.
Application 16/937,979 is a continuation of application No. PCT/CN2020/093886, filed on Jun. 2, 2020.
Application 17/183,422 is a continuation of application No. 16/938,008, filed on Jul. 24, 2020, granted, now 10,938,221, issued on Mar. 2, 2021.
Application 16/938,008 is a continuation of application No. PCT/CN2020/093886, filed on Jun. 2, 2020.
Application 17/183,422 is a continuation of application No. PCT/CN2020/093886, filed on Jun. 2, 2020.
Prior Publication US 2023/0163602 A1, May 25, 2023
Int. Cl. H01M 10/46 (2006.01); H02J 7/00 (2006.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H01M 10/0525 (2010.01)
CPC H02J 7/00032 (2020.01) [H01M 10/0525 (2013.01); H01M 10/425 (2013.01); H01M 10/4257 (2013.01); H01M 10/441 (2013.01); H01M 10/482 (2013.01); H02J 7/007 (2013.01); H02J 7/0013 (2013.01); H02J 7/0014 (2013.01); H02J 7/0029 (2013.01); H02J 7/0047 (2013.01); H02J 7/0048 (2020.01); H02J 7/0063 (2013.01); H02J 7/00712 (2020.01); H01M 2010/4271 (2013.01); H01M 2010/4278 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for powering a load comprising:
a power input terminal configured to be connected to a power source;
a power output terminal configured to be connected to a load;
a first conduction path connecting the power input terminal and the power output terminal, wherein the first conduction path comprises one or more first thermistors of a first type of thermistor in series with one or more second thermistors of a second type of thermistor, wherein a first resistance of the first type of thermistor responds, to a change in temperature, in an opposite direction than how a second resistance of the second thermistor responds to the change in temperature;
a second conduction path connecting the power input terminal and the power output terminal; and
a switching circuit configured to connect, during a first time interval and via the first conduction path, the power input terminal and the power output terminal and configured to connect, during a second first time interval and via the second conduction path, the power input terminal and the power output terminal,
wherein, at a beginning of the first time interval, one of the first type of thermistor or second type of thermistor has a greater resistance than a corresponding second or first type of thermistor, and
wherein, at an end of the first time interval, the one of the first type of thermistor or second type of thermistor has a lower resistance than the corresponding second or first type of thermistor.