About 30 results
https://drivepatents.com/patents/986483 · 25 Sep 2013
A device for controlling an assembled battery provided with a plurality of single batteries, in which the device is provided with a targeted voltage setting means for setting a targeted voltage to equalize voltages of the plurality of single batteries, a c...
https://drivepatents.com/patents/986441 · 25 Sep 2013
In a case where a distributed generation such as a solar power generation system and an electricity accumulation apparatus are introduced to the side of a customer, an electric power from the distributed generation that is charged to the electricity accumu...
https://drivepatents.com/patents/987415 · 14 Aug 2013
A power generation voltage of an alternator capable of supplying a charging current to a battery is boosted (Step 104). A determination is then made as to whether or not a condition in which the charging current supplied to the battery equals or exceeds a ...
https://drivepatents.com/patents/997423 · 10 Oct 2012
A secondary battery system includes an assembly battery (2) which are composed of secondary cells (P11~P46), two voltage dividing resistances (31A and 31B) which equally divide a voltage across a cathode and an anode of the assembly battery (2) from the in...
https://drivepatents.com/patents/1003262 · 18 Apr 2012
The present invention is directed to an electrochemical cell based on lithium technology, comprising the following components - a positive electrode containing a cathode material, - a separator made of an electrically insulating material, - a negative elec...
https://drivepatents.com/patents/1004303 · 21 Mar 2012
A battery system comprises one or more lithium ion secondary batteries, charge and discharge control means, and internal resistance detecting means. The charge and discharge control means comprises a plurality of mode control means including first mode con...
https://drivepatents.com/patents/1004318 · 14 Mar 2012
Systems and methods to determine a power pack charging state. A difference between a first power pack capacity of a power pack at a first time and a second power pack capacity of the power pack at a second time is estimated, where the second time is a time...
https://drivepatents.com/patents/1102837 · 31 Jul 2002
Disclosed is a method for charging a battery and circuitry for performing the method. The method includes steps of: (A) generating at a first node a battery charge current (Icharge) for charging the battery; (B) generating at a second node a replica curren...
https://drivepatents.com/patents/1103122 · 17 Jul 2002
Disclosed is a method for charging a battery and circuitry for performing the method. The method includes steps of: (a) generating a charging current (Ich) for a battery; (b) generating a replica current (Irep) of Ich, where Irep=Ich/N, where N > 1; (c) me...
https://drivepatents.com/patents/1112514 · 13 Jun 2001
A power supply circuit includes two power storage devices (50, 80), one of which is better at supplying current in pulses. Switching (SW3, SW4) and control means (61) are arranged so that current is usually supplied from the power storage device (80) which...