About 33 results
https://drivepatents.com/patents/1069984 · 15 Feb 2006
A method and apparatus for charging batteries includes using an input rectifier to receive an ac input and provide a dc signal. A converter receives the dc signal and provides a converter output. An output circuit receives the converter output and provides...
https://drivepatents.com/patents/1073017 · 26 Oct 2005
A portable electronic device and a mobile communication terminal, whose surface temperature does not increase while being charged regardless of the type of a charger for charging a storage battery being mounted therein. When a cell-phone unit, which has a ...
https://drivepatents.com/patents/1073862 · 21 Sep 2005
A power management topology for portable electronic devices that includes a feed-enabled AC/DC adapter that receives feedback data from a charge controller associated with the portable device. The feedback data can include battery charging current, battery...
https://drivepatents.com/patents/1075325 · 3 Aug 2005
Battery-charging device has a direct voltage changer (DVC) that links to the mains and converts mains alternating or rotary/three-phase current into an alternating or rotary/three-phase current of a higher frequency. The DVC links directly to a transformer...
https://drivepatents.com/patents/1078111 · 4 May 2005
A DC power source unit supplies a DC voltage to a power tool (22) through an adapter when a power switch of the tool (22a) is turned ON and also charges a battery pack (2) used as an alternative power source of the tool when the power tool is not operated....
https://drivepatents.com/patents/1078524 · 13 Apr 2005
A charger having a controller with an input and an output, a first terminal for connecting a battery pack to the controller, a connecting line disposed between the first terminal and the input of the controller, a current source connected to the controller...
https://drivepatents.com/patents/1080981 · 5 Jan 2005
Correcting ohmic resistor (COR) (16) is wired into a branch of a rectifier bridge connection (RBC) (12). A transformer (10) is fed with mains voltage. The RBC with a diode (14) in each bridge branch links onto a secondary winding for the transformer. In on...
https://drivepatents.com/patents/1083400 · 6 Oct 2004
There is herein provided an uninterruptible power supply device with a degradation judgment circuit 4 of a storage battery 2 which can perform an exact judgment, continuing the power supply to a load apparatus 8 stably without giving the excessive burden t...
https://drivepatents.com/patents/1087847 · 21 Apr 2004
The automatic turn-off devices block the current absorption, when the rechargeable cell voltage is lower than the preset value. A light emitting diode (LED) (207) provided in the cell recharge sensor, turns ON when the cell is charged, and turns OFF when t...
https://drivepatents.com/patents/1088742 · 24 Mar 2004
A circuit of multiple units of step differential DC source to detect charging current and terminal voltage of a storage/discharging device, or to detect charging temperature so to control operation of control switches respectively connected in series with ...