A controller for a rechargeable battery that improves the recovering efficiency of the energy used to charge the rechargeable battery and prevents the life of the rechargeable battery from being shortened by overcharging. The controller includes a voltage measurement unit for measuring terminal voltage of the rechargeable battery and a control unit for setting a plurality of input maximum voltages, each indicating an upper limit for charging power input to the rechargeable battery during a predetermined time. The control unit sets a plurality of reference voltages respectively corresponding to the plurality of input maximum values. When the terminal voltage of the rechargeable battery increases to one of the reference voltages, the control unit lowers the input maximum value corresponding to that reference voltage.

 
Web www.patentalert.com

< Multipurpose radio

> Method and device for producing rectifier gating signals using a peak detector

> Protection methods, protection circuits and protective devices for secondary batteries, a power tool, charger and battery pack adapted to provide protection against fault conditions in the battery pack

~ 00507