US 11,721,986 B2
Battery pack charging and discharging protection system
Baoan Li, Jiangsu (CN); Yanliang Zhu, Jiangsu (CN); Xian Zhuang, Jiangsu (CN); and Huage Wang, Jiangsu (CN)
Assigned to Globe (Jiangsu) Co., Ltd, Changzhou (CN)
Filed by Globe (Jiangsu) Co., Ltd, Jiangsu (CN)
Filed on Nov. 13, 2020, as Appl. No. 17/98,322.
Claims priority of application No. 201911119542.X (CN), filed on Nov. 15, 2019.
Prior Publication US 2021/0152007 A1, May 20, 2021
Int. Cl. H02J 7/00 (2006.01)
CPC H02J 7/00306 (2020.01) [H02J 7/0031 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A battery pack charging and discharging protection system, comprising:
a battery pack and a power input controlling circuit connected with the battery pack;
a voltage regulator unit connected to the power input controlling circuit;
a charging and discharging protection unit, the charging and discharging protection unit comprising:
a MCU self-locking circuit configured to control the on/off of the battery pack, the MCU self-locking circuit comprising a MCU a microcontroller unit (MCU);
a coupling wake-up circuit connected with the power input controlling circuit and configured to drive the voltage regulator unit to complete the power-on of the MCU self-locking circuit;
a power-off acceleration circuit connected with the coupling wake-up circuit and configured to detect the voltage of the voltage regulator unit to control a close of wake-up signals of the coupling wake-up circuit;
a switch button detect circuit connected with the MCU for detecting a signal actuated by an operator.