Invention Grant
- Patent Title: Charge and discharge control circuit and battery device
- Patent Title (中): 充放电控制电路和电池装置
-
Application No.: US11840561Application Date: 2007-08-17
-
Publication No.: US07855531B2Publication Date: 2010-12-21
- Inventor: Wei Zhang
- Applicant: Wei Zhang
- Applicant Address: JP Chiba
- Assignee: Seiko Instruments Inc.
- Current Assignee: Seiko Instruments Inc.
- Current Assignee Address: JP Chiba
- Agency: Brinks Hofer Gilson & Lione
- Priority: JP2006-227741 20060824; JP2007-178837 20070706
- Main IPC: H02J7/00
- IPC: H02J7/00

Abstract:
When pulse charging is performed in an overcharge state or an overdischarge state in a charge and discharge control circuit and a battery device, a problem in that a pseudo overcurrent phenomenon occurs repeatedly to hinder normal operations of the charge and discharge control circuit and the battery device is addressed, thereby providing a safe battery device. Thus, there are provided a charge and discharge control circuit and a battery device having a structure in which charge overcurrent detection in the overcharge state and discharge overcurrent detection in the overdischarge state are invalidated.
Public/Granted literature
- US20080048620A1 CHARGE AND DISCHARGE CONTROL CIRCUIT AND BATTERY DEVICE Public/Granted day:2008-02-28
Information query