Patents
Patents for H02J 7 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries (94,693)
05/1999
05/26/1999CN2320738Y Electric lock mechanism with preparatory power supply device
05/26/1999CN1217832A Power supply device
05/26/1999CN1217831A Protective device for electronic circuit
05/25/1999US5907235 Method and apparatus for generating a supply voltage for a hearing device
05/25/1999US5907233 For a generator
05/25/1999US5907232 Battery with charge control circuitry
05/25/1999US5907194 Device for supplying voltage in a motor vehicle including two batteries and having improved reliability
05/25/1999CA2157823C Charge equalization of series connected cells or batteries
05/24/1999CA2254202A1 Thermal switch
05/24/1999CA2252245A1 Thermal switch assembly
05/20/1999WO1999025053A1 Method and system for charging a battery with storage cell modules
05/20/1999WO1999025041A1 Cellular telephone battery recharger device with digital recording system and speaker phone
05/20/1999WO1999024293A1 Process and ignition circuit for triggering a passenger protection system
05/20/1999DE19749856A1 Verfahren und Zündschaltung zur Auslösung eines Insassenschutzsystems A method and firing circuit for triggering a vehicle occupant protection system
05/19/1999EP0917229A1 Battery pack, electronic device system, and method of detecting attachment of battery pack
05/19/1999EP0916511A2 Recording apparatus having a charging function, and charging method
05/19/1999EP0842551A4 Battery charging system
05/19/1999CN2319980Y Special battery for auxiliary resistance bleeper
05/19/1999CN2319947Y Battery charging timer of mobile telephone
05/19/1999CN1217096A Modular power management system and method
05/19/1999CN1216871A Rechargeable battery pack with identification circuit, real time clock and authentiation cap ability
05/18/1999US5905437 Pager with low voltage alarm
05/18/1999US5905365 Real time-clock power supply device
05/18/1999US5905364 Rapid battery charger with charge controlling capability depending on overvoltage of the battery
05/18/1999US5905363 Method for reducing the internal resistance of rechargeable batteries
05/18/1999US5905362 Battery charging device, method for charging battery pack by switching between maximum charging voltage and maximum charging current
05/18/1999US5905361 Charging-and-discharging device, constant-voltage and constant-current control circuit, and electronic device
05/18/1999US5905360 Battery system and electric motor vehicle using the battery system with charge equalizing features
05/18/1999US5905358 Method for distinguishing a standard battery from an ultrafast battery and charging same
05/18/1999US5905357 Power generation control apparatus for motorcar power distributor
05/18/1999US5905356 Solar powered charger for vehicular accessories and cordless tools
05/14/1999WO1999023738A1 Method and apparatus for charging a battery
05/12/1999EP0915552A2 Secondary battery control device
05/12/1999EP0914701A1 Auxiliary battery voltage/temperature compensation for automotive 12 volt system for electric vehicles
05/12/1999EP0914272A1 Energy converter system mounted in a wheel hub
05/12/1999EP0806078B1 Power-supply circuit
05/12/1999EP0806076B1 Power-supply circuit
05/12/1999DE19849312A1 Control system for auxiliary drive system for hybrid vehicle
05/12/1999DE19841898A1 Hearing aid with external power supply
05/12/1999CN1216431A Telephony device comprising accumulation device and accumulation device suitable for such telephony device
05/11/1999US5903765 Power management system for a computer
05/11/1999US5903764 Smart battery selector offering power conversion internally within a portable device
05/11/1999US5903449 Bi-directional power control system for voltage converter
05/11/1999US5903423 Battery pack for electric power tools
05/11/1999US5903137 Battery pack with single charge inhibit/regulator transistor
05/11/1999US5903136 Method for charging secondary batteries
05/11/1999US5903135 Cellular telephone battery recharger device with digital recording system and speaker phone
05/11/1999US5903134 Inductive battery charger
05/11/1999US5903133 Vehicular beverage holder and charger
05/11/1999US5903131 Battery set structure and charge/discharge control apparatus for lithium-ion battery
05/11/1999US5903063 Ignition sensor circuit
05/11/1999US5902105 Dental treatment apparatus with a root canal length measurement function
05/11/1999CA2135963C Battery-driven electronic appliance
05/06/1999WO1999022434A1 Method and circuit for controlling charging in a dual battery electrical system
05/06/1999WO1999022433A1 An identification arrangement and method
05/06/1999WO1999022385A1 Electric power transmission device
05/06/1999WO1999021745A1 Circuit configuration to monitor a regulated output voltage in a motor vehicle
05/06/1999WO1999021735A1 Instrumentation for vehicles
05/06/1999WO1999021417A1 Battery and lure tester
05/06/1999WO1999005537A3 In-situ fault detection apparatus and method for an encased energy storing device
05/06/1999EP0913907A1 Telephone apparatus including an energy storage device and storage device suitable for such an apparatus
05/06/1999EP0913906A2 Electrical disconnection and automatic re-engagement of battery monitoring circuits
05/06/1999EP0913560A1 Method for improving the exhaust emissions of an internal combustion engine
05/06/1999EP0913292A2 Method for equalizing the voltage of traction battery modules of a hybrid electric vehicle
05/06/1999EP0913288A2 Method for maintaining the charge capacity of traction battery modules of a hybrid electric vehicle
05/06/1999DE19746919A1 Elektrische Übertragungsvorrichtung Electric transmission device
05/06/1999CA2308273A1 Method and circuit for controlling charging in a dual battery electrical system
05/06/1999CA2307856A1 An identification arrangement and method
05/05/1999CN2317572Y Microcomputer liquid crystal display travelling charger
05/05/1999CN1216171A Device for charging battery using photovoltaic cell, and timepiece comprising same
05/05/1999CN1215941A Fast storage battery charging method and device
05/05/1999CN1043280C Overcurrent feed preventing device
05/04/1999US5901056 DC power supply device adapted to operate with an AC power supply or with a car battery via a cigarette lighter
05/04/1999US5900719 Battery pack charger having a fail-safe heat-sensitive switch for preventing overcharge
05/04/1999US5900718 Battery charger and method of charging batteries
05/04/1999US5900717 Rechargeable battery charging circuit
05/04/1999US5900716 Balanced battery charger
05/04/1999US5899411 Aircraft electrical system providing emergency power and electric starting of propulsion engines
05/04/1999CA2111280C Surge suppression device
04/1999
04/29/1999WO1999021261A1 Power distribution system in a vehicle
04/29/1999WO1999021241A1 Improved voltaic pile with charge equalizing system
04/29/1999WO1999021238A1 Thin-profile or button-type battery circuits and constructions, methods of forming
04/29/1999DE19845243A1 Procedure for controlling switch converter for charging accumulators with pulsed charging current
04/29/1999DE19746693A1 Electronic watch with rechargeable energy store and charger
04/28/1999EP0911989A2 A time-division radio that is powered by a low-power energy source
04/28/1999EP0911958A1 Device for synchronous rectification of an alternator
04/28/1999EP0911942A2 Method and circuit arrangement for momentarily maintaining an output voltage by means of an autarky capacitor in case of failure of the input voltage
04/28/1999EP0911941A2 Power supply unit for vehicles
04/28/1999EP0911940A1 Adaptive charge circuit for a battery or accumulator
04/28/1999EP0911939A2 Battery charging device and method and electronic device
04/28/1999EP0911938A2 On/off control device for power source unit
04/28/1999EP0911902A2 Portable booster battery
04/28/1999EP0911740A2 Bus station and bus system
04/28/1999CN2316760Y Operating supply unit for transformer substation
04/28/1999CN2316759Y Intelligent DC supply unit
04/28/1999CN1215523A Casing for a cordless telephone, and assembly of a casing with a cordless telephone
04/28/1999CN1215240A Charging apparatus and charging system
04/27/1999US5898932 Portable cellular phone with integral solar panel
04/27/1999US5898738 Modulation, demodulation and antenna coupling circuits used in IC card reading/writing apparatus, and method of supplying power to the IC card
04/27/1999US5898585 Apparatus and method for providing supplemental alternating current from a solar cell array