| Patents for H02J 7 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries (94,693) |
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| 04/27/1999 | US5898579 Non-contact power distribution system |
| 04/27/1999 | US5898578 Transformer-isolated power transfer apparatus having intermittent and continuous oscillation modes of operation |
| 04/27/1999 | US5898294 Control loop for pulse charging lithium ion cells |
| 04/27/1999 | US5898293 Method of preventing battery over-discharge and a battery pack with a battery over-discharge prevention circuit |
| 04/27/1999 | US5898291 Battery cell bypass topology |
| 04/27/1999 | US5898234 Power supply unit with simplified circuitry |
| 04/27/1999 | US5897973 Lithium cell recharging |
| 04/22/1999 | WO1999019959A1 Method and apparatus for charging one or more electric vehicles |
| 04/22/1999 | WO1999019776A1 Watch containing flat heat conductor and provided with thermoelectric generation unit |
| 04/22/1999 | WO1999019775A1 Watch provided with thermoelectric generation unit |
| 04/22/1999 | WO1999019737A2 Battery capacity measurement circuit |
| 04/22/1999 | WO1999001918A3 Device and system for management of battery back up power source |
| 04/22/1999 | DE19745849A1 Power distribution device for motor vehicles |
| 04/21/1999 | EP0910151A2 Mode selection circuit for a battery and method of operation thereof |
| 04/21/1999 | EP0909894A1 Drive circuit and method for driving a thrust engine of a spacecraft |
| 04/21/1999 | EP0909675A2 Secondary battery charge and discharge control device |
| 04/21/1999 | EP0909475A1 Safety device for a portable battery-powered electric apparatus |
| 04/21/1999 | CN2315703Y Wind force solar complementary stand-by power supply device |
| 04/21/1999 | CN2315702Y Charger for battery |
| 04/21/1999 | CN2315701Y Stand-by super long delay uninterrupted power supply |
| 04/21/1999 | CN2315700Y AC/DC two purpose power supply device capable of changing power plug |
| 04/21/1999 | CN2315663Y Portable mini charger |
| 04/21/1999 | CN1214833A Portable terminal equipment |
| 04/21/1999 | CN1214811A Electronic switched-mode power supply and its use |
| 04/21/1999 | CN1214555A Rechargeable buttery pack with identification circuit, real time clock and authentication capability |
| 04/20/1999 | US5896278 Non-contact electric power transmission apparatus |
| 04/20/1999 | US5896260 Electronic safety break and method |
| 04/20/1999 | US5896026 Power conservation and management system for a self-powered electronic lock |
| 04/20/1999 | US5896025 Secondary battery protection device from overcharge/overdischarge |
| 04/20/1999 | US5896024 Method and apparatus for manually selecting battery charging process |
| 04/20/1999 | US5896023 Method for charging an electric storage battery |
| 04/20/1999 | US5896022 Battery charge managing system |
| 04/20/1999 | US5895982 Fully regulated power bus using multiple source bus regulators |
| 04/15/1999 | WO1999018628A1 Metal-air fuel cell battery systems employing metal-fuel cards |
| 04/15/1999 | WO1999018627A1 Metal-air fuel cell battery systems employing metal-fuel tape |
| 04/15/1999 | WO1999018626A1 Battery power supply |
| 04/15/1999 | WO1999018620A2 Metal-air fuel cell battery systems employing moving anode and cathode structures |
| 04/15/1999 | DE19845569A1 Device and procedure especially for controlling 3-phase generator with rectifier bridge, for motor vehicle |
| 04/15/1999 | DE19745094A1 Control of energy flow of hybrid electric car |
| 04/14/1999 | EP0909001A2 Method and device for detecting a state of charge of a battery assembly, and battery assembly charge and discharge control device |
| 04/14/1999 | EP0908960A2 Electronic equipment power charging system |
| 04/14/1999 | EP0908737A2 Battery charge level detecting device |
| 04/14/1999 | EP0795206B1 A method and an apparatus for controlling battery temperature during charging/discharging |
| 04/13/1999 | US5894415 Fault tolerant power supply including a switching mechanism for controlling the operation of plural voltage converters in response to changing input voltage levels |
| 04/13/1999 | US5894222 Battery testing method for individually testing secondary batteries by charging and discharging the batteries |
| 04/13/1999 | US5894212 Discharge monitoring and isolating system for batteries |
| 04/08/1999 | WO1999017418A1 Method and apparatus for charging a rechargeable battery |
| 04/08/1999 | WO1999017417A1 Power system |
| 04/08/1999 | WO1999017416A1 Telephone equipment with rechargeable battery and detection of type of charger used |
| 04/08/1999 | WO1999017392A1 Method for measuring residual capacity of secondary cell having nickel hydroxide positive plate |
| 04/08/1999 | WO1999017123A1 Instrument for measuring voltages of cells |
| 04/08/1999 | WO1999016417A1 Buccal, polar and non-polar spray or capsule |
| 04/08/1999 | DE19744099A1 Bus station for bus system |
| 04/08/1999 | CA2248408A1 A time-division radio that is powered by a low-power energy source |
| 04/07/1999 | EP0907238A1 Multiplex pulse-width modulation power converter |
| 04/07/1999 | EP0907234A2 Battery charging system |
| 04/07/1999 | EP0907122A1 Power adapter having a speaker for an electronic device |
| 04/07/1999 | CN1213206A Uninterruption power source system and its charge control method |
| 04/07/1999 | CN1213109A Adapter for terminal unit |
| 04/07/1999 | CN1042883C Power circuit and radiocommunication apparatus using the power circuit |
| 04/06/1999 | US5892393 Power supply circuit having an auxiliary power source for compensating for main power drop |
| 04/06/1999 | US5892351 DC-isolated converting battery module |
| 04/06/1999 | US5892350 Battery operated self moving mobile object and charging system |
| 04/06/1999 | US5892346 Vehicle |
| 04/06/1999 | US5891591 Battery terminal |
| 04/06/1999 | US5891590 Battery reconditioning device |
| 04/06/1999 | US5891487 Apparatus for making a multi-portion mixing element |
| 04/06/1999 | US5890780 Power supply switching apparatus with protection function for supplying power to an electronic circuit via an external power source or an internal power supply source |
| 04/06/1999 | US5890779 Apparatus for providing electrical communication between parts of a vehicle |
| 04/06/1999 | CA2156149C Battery-powered accessory for radio data communication of a data processing apparatus |
| 04/01/1999 | WO1999016160A2 Low frequency bilateral communication over power distribution lines |
| 04/01/1999 | WO1999016142A1 Power-supply component fitted with an accumulator |
| 03/31/1999 | EP0905855A2 Nickel battery charging method and apparatus |
| 03/31/1999 | EP0905854A1 Autonomous energy supply device for a portable tool with universal motors |
| 03/31/1999 | EP0905853A2 Battery charging and discharging control circuit |
| 03/31/1999 | EP0904625A1 Emergency power supply |
| 03/31/1999 | EP0904624A1 Motor vehicle alternator control method and device |
| 03/31/1999 | EP0904623A1 Apparatus and method for identifying and charging batteries of different types |
| 03/31/1999 | EP0904622A2 Apparatus and method for identifying and charging batteries of different types |
| 03/31/1999 | EP0904621A1 Modular power management system and method |
| 03/31/1999 | EP0904609A1 A method for charging a battery |
| 03/31/1999 | EP0713615B1 Rectifier leakage compensated alternator phase detection system and method |
| 03/31/1999 | CN2312539Y Portable testing instrument for cell of battery of mobile telephone set |
| 03/31/1999 | CN1212597A Method for extending battery run-time of mobile communication terminal |
| 03/30/1999 | US5889737 Wrist carried electronic device |
| 03/30/1999 | US5889388 Circuitry for dynamically controlling capacitor charge based on battery capacity |
| 03/30/1999 | US5889387 Battery charging unit |
| 03/30/1999 | US5889386 Battery conditioning system having communication with battery parameter memory means in conjunction with battery conditioning |
| 03/30/1999 | US5889385 Equalization of series-connected cells of a battery using controlled charging and discharging pulses |
| 03/30/1999 | US5889384 Power transfer and voltage level conversion for a battery-powered electronic device |
| 03/30/1999 | US5889383 System and method for charging batteries with ambient acoustic energy |
| 03/30/1999 | US5889382 Charging device for commonly charging various kinds of battery |
| 03/30/1999 | US5888156 Lighted inflatable device |
| 03/25/1999 | WO1999014837A1 Battery charge maintenance system and method |
| 03/25/1999 | WO1999000863A3 Battery charging system having lock-out circuitry |
| 03/25/1999 | DE19741279A1 Induction battery charging device for portable equipment |
| 03/25/1999 | CA2304084A1 Battery charge maintenance system and method |
| 03/24/1999 | EP0903839A1 Voltage regulator |
| 03/24/1999 | EP0903831A2 Charging apparatus and charging system |
| 03/24/1999 | EP0903830A2 Charging device for batteries in a mobile electrical unit |