Patents
Patents for H02J 7 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries (94,693)
01/1992
01/14/1992CA2045986A1 Battery chargers for secondary cells or batteries, which control the thermo response of the charge acceptor
01/14/1992CA1294322C Silicon diode looping element for protecting a battery cell
01/09/1992WO1992000641A1 Adding cordless handset capability to a corded telephone
01/08/1992EP0464694A2 Power source unit for an automotive vehicle
01/08/1992CN2092829U Dual purpose power source device of dc and ac with charge function
01/08/1992CN2092828U Dc power source device set employed ni-cd battary with dual circuit
01/07/1992US5079716 Method and apparatus for estimating a battery temperature
01/07/1992US5079496 Multifunction regulator synchronized to an alternator
01/07/1992US5079495 Charge exhaustion preventing apparatus of storage battery
01/07/1992US5078627 Voltage regulator and rectifier having over-temperature protection
01/07/1992CA1294026C Portable power source for mobile storage carriage
01/02/1992EP0463593A2 Portable computer powered by rechargeable batteries
01/01/1992CN2092158U Full-automatic quick charger
12/1991
12/31/1991US5077516 Generator unit
12/31/1991US5077514 Battery charging apparatus and method
12/27/1991EP0462547A2 Method and circuit configuration for generating a sinusoidal AC mains voltage from a DC voltage
12/27/1991EP0462503A1 Device for regulating a generator
12/25/1991CN2091505U On-line ups power supply input voltage-expansion device
12/25/1991CN2091496U Charging power supply
12/24/1991US5075616 Engine generator apparatus and method of operating same
12/24/1991US5075615 Combined recharging mount and stand for electric razors
12/24/1991US5075614 Device ascertaining the time required to charge a battery and timing the charge
12/18/1991CN2091038U Dual-purpose electric source for charging and starting locomotive
12/18/1991CN2091037U Charger for button cell
12/18/1991CN2090694U Portable multifunctional travelling massager
12/17/1991US5073928 Cordless telephone system having an automatic answering device
12/17/1991US5073837 Low voltage protection circuit
12/17/1991US5073721 Noise immune power switch for automotive accessories
12/12/1991WO1991019343A1 A method of charging a battery
12/12/1991WO1991019337A1 Laser system
12/12/1991WO1991018495A2 New electric circuit system
12/12/1991DE4026020C1 Transportable battery charging appts. esp. for vehicle - has ventilation holes in opposite sidewalls between cooling ribs of power section and panel for operating elements and display
12/12/1991DE4026019C1 Transportable battery charging appts. for vehicle - has pivotable carrying strap leaving side with display and operating elements exposed
12/11/1991EP0460888A2 Improvements in battery charging circuits
12/11/1991EP0460515A2 Method for charging batteries
12/11/1991EP0460453A2 Power production installation, especially propeller propulsion for ships using a solar generator
12/10/1991US5072167 Autopolarity battery charger
12/10/1991US5072098 Electrically heated windshield controller
12/05/1991DE4017475A1 Electric battery with stabilised operating temp. - uses thermo-switch for on=off switching of associated electrical heating system
12/04/1991CN1056781A Automatic control circuit of power silicon controlled rectifier direct current power source
12/04/1991CN1056777A High-precision float charger
12/03/1991US5070293 Electric power transmitting device with inductive coupling
12/03/1991US5070229 Window heater controlling apparatus providing a gradual heating voltage
12/03/1991CA2063243A1 Energy-generating plant, particularly propellor-type ship's propulsion plant, supplied by a solar generator
12/03/1991CA2043653A1 Energy-generating plant, particularly propeller-type ship's propulsion plant, supplied by a solar generator
11/1991
11/27/1991EP0458716A2 Power system with a voltage sensitive switching circuit
11/27/1991EP0458232A2 Control- and measurement device for mobile battery powered equipment
11/27/1991EP0318475B1 Voltage regulator for a generator
11/27/1991CN2089670U 袖珍充电器 Pocket Charger
11/27/1991CN2089669U Full automatic rapid charger
11/27/1991CN1056605A Full-automatic charger for automobile
11/27/1991CN1014948B Pulse width modulation charger
11/26/1991US5068589 Supplemental automotive vehicular heater system and method of providing same
11/26/1991CA1292510C Rechargeable battery pack and charger unit combination
11/24/1991CA2017481A1 Method and apparatus for high-rate charging of a battery
11/21/1991DE4015967A1 Electric vehicle with battery-recharging sliding contact - collecting current from LV DC-energised strip bonded to surface of major road
11/21/1991DE4014696A1 Anordnung und verfahren zum laden eines akkumulators einer transportvorrichtung mit eigenem elektro-antrieb Arrangement and method for charging a battery of a transporter with its own electro-drive
11/19/1991US5066866 Power converter system
11/19/1991CA1292275C Transceiver battery charging apparatus and method
11/14/1991WO1991017599A1 Device and process for charging the battery of a self-powered electric transport vehicle
11/14/1991DE4015096A1 Engine-independent vehicular heater with common battery-charging - provided by circuit associated with heater control which also recharges battery units for blower and remote controller
11/14/1991DE4014611A1 Decoupling system for number of batteries - has comparator controlled programme unit to control batteries
11/14/1991DE4014534A1 Solar cell load regulator - has variable pulse control to maintain charge condition
11/13/1991EP0456436A2 Pipette charging system
11/13/1991CN2088756U Electricity charger carried by vehicle
11/13/1991CN2088755U Electricity charger with protective function
11/12/1991US5065086 Engine driven generator
11/12/1991US5065083 Microprocessor controlled electronic stimulating device having a battery management system and method therefor
11/12/1991US5065082 Voltage-switching mechanism for a battery charger for charging batteries with different volt ratings
11/07/1991DE4042347A1 Electric generator excitation delay set=up for cold starting - uses memorised engine warm=up characteristic to adjust timing of excitation according to measured initial temp.
11/06/1991EP0455252A2 A radio unit for a telephone set
11/06/1991EP0225364B1 Monitoring state of battery charge
11/06/1991CN2088305U Safety universal power supply
11/05/1991US5063471 Battery protection circuit
11/05/1991US5063341 Lead acid battery rejuvenator and charger
11/05/1991US5063340 Capacitive power supply having charge equalization circuit
11/05/1991CA1291790C Bypass element for safeguarding battery cells
11/05/1991CA1291789C Sealed lead-acid battery float charger and power supply
10/1991
10/31/1991WO1991016753A1 Battery charging controller for a battery powered device and method for using the same
10/31/1991DE4013619A1 Electrical generator voltage regulation system for automobile - adjusts generator voltage to match battery requirement at different temps.
10/30/1991EP0454500A2 Battery charger
10/30/1991CN2087725U Charging type lead battery energy-saving miner's lamp
10/30/1991CN2087724U Multifunctional solar energy charging lamp
10/30/1991CN1014555B Charging device of electronic appliances
10/29/1991US5061889 Vehicle ac generator control device for adjusting output voltage in accordance with vehicle conditions
10/23/1991CN2087395U Multifunctional all-automatic electric source
10/22/1991US5059886 Charging generator
10/22/1991US5059885 Battery charger with battery positioning and support apparatus
10/17/1991WO1991015891A1 Conditioning and charging circuit for nickel-cadmium batteries
10/17/1991WO1991015757A1 Apparatus and method for calorimetrically determining battery charge state
10/17/1991DE4011565A1 Solar-powered electric drive for bicycle - uses solar cells attached to side faces of bicycle wheels
10/16/1991EP0452073A2 Battery power cut-off circuit
10/16/1991EP0451584A2 Charge detecting apparatus
10/15/1991US5057764 Idling engine speed controlling apparatus for an engine
10/15/1991US5057763 High power supply for motor vehicle
10/15/1991US5057762 System for determining battery charge states and charging sequence for a battery charger
10/15/1991US5057761 Means for distinguishing between batteries capable of being fast charged and other batteries and for charging same accordingly
10/15/1991US5057697 DC uninterrupted power supply having instantaneous switching followed by low impedance switching
10/15/1991US5057383 Battery system
10/15/1991US5057381 Satellite rechargeable battery and recharger system