公开(公告)号：US10103556B2

公开(公告)日：2018-10-16

申请号：US14944002

申请日：2015-11-17

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Robert L. Snyder ,  Muhamad Ridzuan Bin Azizan ,  Roger L. Boyer ,  Donald L. Flowers

IPC: H02J7/00 ,  H02H3/08 ,  H02H3/20 ,  H02H3/087 ,  H02H7/18

Abstract: Methods and apparatus for a protection circuit for a battery and a battery connected device during charging are provided. In one embodiment, the apparatus includes a load-blocking switch connected between a rechargeable battery and an electronic device and a charge-blocking switch connected between the rechargeable battery and a charger. The apparatus also includes a safety circuit to detect a voltage across and the current flowing through the rechargeable battery. The safety circuit opens the load-blocking switch and the charge-blocking switch when it detects that the voltage across or the current flowing through the battery exceeds a predetermined threshold.

公开(公告)号：US20170141592A1

公开(公告)日：2017-05-18

申请号：US14944002

申请日：2015-11-17

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Robert L. Snyder ,  Muhamad Ridzuan Bin Azizan ,  Roger L. Boyer ,  Donald L. Flowers

IPC: H02J7/00 ,  H02H3/20 ,  H02H3/08

CPC classification number: H02J7/0031 ,  H02H3/08 ,  H02H3/087 ,  H02H3/20 ,  H02H3/202 ,  H02H7/18 ,  H02J7/0042 ,  H02J2007/0037 ,  H02J2007/0039

Abstract: Methods and apparatus for a protection circuit for a battery and a battery connected device during charging are provided. In one embodiment, the apparatus includes a load-blocking switch connected between a rechargeable battery and an electronic device and a charge-blocking switch connected between the rechargeable battery and a charger. The apparatus also includes a safety circuit to detect a voltage across and the current flowing through the rechargeable battery. The safety circuit opens the load-blocking switch and the charge-blocking switch when it detects that the voltage across or the current flowing through the battery exceeds a predetermined threshold.