公开(公告)号：US11088531B2

公开(公告)日：2021-08-10

申请号：US16563424

申请日：2019-09-06

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Muhamad Ridzuan Azizan ,  Macwien Krishnamurhti ,  Kow Chee Chong ,  Chen Kok Yeoh

IPC: H02H3/093 ,  H02H3/05 ,  H02H7/18

Abstract: A device, battery and method for spark detection based on transient currents is provided. The battery includes: a cell; an interface; a first protection circuit and a second protection circuit. The first protection circuit comprises a first switch between the cell and the interface. The second protection circuit comprises a second switch between the cell and the interface. The first protection circuit is configured to: measure a load current on the cell; and open the first switch according to a first delay time based on the measurement of the load current. The second protection circuit is configured to: measure a transient current on the cell above the load current; and open the second switch according to a second delay time, lower than the first delay time, based on the measurement of the transient current.

公开(公告)号：US20190135127A1

公开(公告)日：2019-05-09

申请号：US15803368

申请日：2017-11-03

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Thean Song Ooi ,  Amy T. Herrmann ,  Michael D. Geren ,  Kow Chee Chong ,  Roger L. Boyer ,  Muhamad Ridzuan Azizan ,  Scott J. Arendell ,  John E. Herrmann ,  Macwien Krishnamurthi ,  Roy L. Kerfoot, JR. ,  William B. Kiger

IPC: B60L11/18 ,  H02J7/00

Abstract: A method for charging a battery includes detecting, with an electronic processor, a presence of the battery coupled to a charging interface. The method includes receiving, with the electronic processor, a command, the command including a charge mode. The method includes, in response to receiving the command, controlling a charging circuit coupled to the charging interface to charge the battery to a predetermined level based on the charge mode. The method includes, when the battery reaches the predetermined charge level, sending a battery control command, based on the charge mode, to control an active limiting circuit of the battery via a single wire data line coupled to the charging interface.