US Patent No. 9,164,143

METHOD AND DEVICE FOR DETECTING STATE OF OVERCURRENT PROTECTOR FOR BATTERY


Patent No. 9,164,143
Issue Date October 20, 2015
Title Method And Device For Detecting State Of Overcurrent Protector For Battery
Inventorship Lin Li, Shenzhen (CN)
Mingming Liu, Shenzhen (CN)
Yanni Meng, Shenzhen (CN)
Lingqiao Teng, Shenzhen (CN)
Baohang Zhou, Shenzhen (CN)
Shuwang Wei, Shenzhen (CN)
Assignee ZTE Corporation, Shenzhen (CN)

Claim of US Patent No. 9,164,143

1. A method for detecting a state of an overcurrent protector for a battery, comprising:
acquiring a voltage Uout out of a power supply and a voltage Ubat of a battery connected to the power supply via an overcurrent protector, and calculating U, wherein U=|Uout?Ubat|;

when UL?U?UH and |Ibat|?Imin and adjusting the voltage of the power supply to be U?out, wherein UL is a minimum value of a difference between the voltage of the power supply and the voltage of the battery, UH is a maximum value of the difference between the voltage of the power supply and the voltage of the battery, Ibat is a current of the battery, and Imin is a current detecting precision of an equipment for detecting the current of the battery;

acquiring the voltage of the battery U?bat after adjusting the voltage of the power supply, and calculating U?, wherein U?=|U?out?U?bat|; and

determining a state of the overcurrent protector for the battery.