| Patents for H02J 7 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries (94,693) |
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| 05/03/1990 | WO1990004872A1 Voltage regulators for permanent magnet alternators |
| 05/03/1990 | WO1990004871A1 Light-energized electronics energy management system |
| 05/03/1990 | DE3837147A1 Flowmeter for fluids of low viscosity |
| 05/01/1990 | US4922179 Power feeding system for a rotor |
| 05/01/1990 | US4922178 For a handheld radio |
| 04/25/1990 | EP0365286A2 A small-sized electronic apparatus |
| 04/25/1990 | CN1041670A Electronic battery charger device and method |
| 04/24/1990 | US4920475 Integrated traction inverter and battery charger apparatus |
| 04/24/1990 | US4920308 Regulator for automotive charging systems |
| 04/24/1990 | US4920307 Electric power source used to charge a secondary power source |
| 04/19/1990 | WO1990004188A1 Automotive battery status monitor |
| 04/19/1990 | WO1990004187A1 Dc/dc converter |
| 04/19/1990 | DE3835279A1 Energy source having a photovoltaic element |
| 04/18/1990 | EP0364371A1 Apparatus for controlling and charging a battery of accumulators in particular |
| 04/18/1990 | EP0198861B1 Control installation for batteries |
| 04/18/1990 | CN2056291U Capacitive constant-current charger |
| 04/18/1990 | CN1007685B Method and apparatus for fast charge of microcomputer controlled battery |
| 04/17/1990 | US4918368 System for charging batteries and measuring capacities and efficiencies thereof |
| 04/12/1990 | DE3834004A1 Charger and discharger for charging and for servicing rechargeable batteries, and the use of the charger and discharger |
| 04/12/1990 | DE3834003A1 Method for recharging batteries of an open type and of a sealed type, as well as a charger for carrying out the method |
| 04/12/1990 | DE3834001A1 Battery charger device |
| 04/11/1990 | EP0158636B1 Method for recharging a rechargeable battery |
| 04/10/1990 | US4916438 Battery charging, monitoring and alarm circuit |
| 04/05/1990 | WO1990003683A1 Integrated circuit voltage regulator and charging system |
| 04/05/1990 | WO1990003682A1 Battery and charging system therefor |
| 04/05/1990 | DE3833697A1 Solar current through a gas or oil heating burner, as well as electrical illumination devices |
| 04/04/1990 | EP0361859A2 Battery Chargers |
| 04/04/1990 | EP0361824A2 Battery charger for vehicle-mounted equipment using engine operation as start timing determination |
| 04/04/1990 | CA2000140A1 Light-energized electronics energy management system |
| 04/03/1990 | US4914555 Rechargeable flashlight |
| 04/03/1990 | US4914374 Voltage regulator for AC generator with constant interruption frequency |
| 03/29/1990 | DE3832841A1 System for charging rechargeable batteries |
| 03/29/1990 | DE3832840A1 Transport system with battery-operated vehicles |
| 03/29/1990 | DE3832839A1 Apparatus for monitoring rechargeable batteries |
| 03/27/1990 | US4912391 Flux-coupled iron directed battery charger |
| 03/27/1990 | US4911257 Vehicle having a solar battery system |
| 03/27/1990 | CA1266984A1 Apparatus for recovering thermal energy from engine |
| 03/22/1990 | WO1990003060A1 Control apparatus |
| 03/22/1990 | WO1990003059A1 Battery charger |
| 03/22/1990 | WO1990002670A1 Electrical supply control system for a motor vehicle |
| 03/21/1990 | CN2054951U Automatic charger |
| 03/21/1990 | CN2054950U Automatic ac/dc mains of wd 88-1 tv |
| 03/21/1990 | CN1040711A Switching apparatus |
| 03/20/1990 | US4910630 Method and apparatus for energizing an electrical load |
| 03/20/1990 | US4910451 Voltage regulator for generator of an automobile |
| 03/20/1990 | US4910103 Battery pack for a portable radiotelegraphic unit |
| 03/15/1990 | DE3831281A1 Battery charger |
| 03/15/1990 | DE3829806A1 Portable miniature solar-powered system |
| 03/15/1990 | DE3829720A1 Batterieladegeraet Battery charger |
| 03/14/1990 | EP0358213A1 Method for the high-speed charging of waterproof nickel-cadmium batteries |
| 03/14/1990 | EP0357829A1 Non-contacting power supplying system |
| 03/08/1990 | WO1990002440A1 Voltage transformer for charging energy stores |
| 03/08/1990 | WO1990002432A1 Battery with charge control system |
| 03/07/1990 | EP0357183A1 Automotive electrical apparatus having a starter/generator induction machine |
| 03/07/1990 | EP0356775A2 Charging generator apparatus |
| 03/07/1990 | CN2054226U Capacitive charger |
| 03/07/1990 | CN1040293A Power generator |
| 03/06/1990 | CA1266501A1 Battery powered electrical curling/brush iron |
| 02/28/1990 | CN2053814U Electronic voltage regulator with short-circuit protection for vehicle |
| 02/28/1990 | CN2053813U 恒流自动充电器 Constant automatic charger |
| 02/27/1990 | US4905115 For use in a vehicle |
| 02/27/1990 | US4904548 Method for controlling a fuel cell |
| 02/27/1990 | CA1266298A1 Zener diode looping element for protecting a battery cell |
| 02/27/1990 | CA1266158A1 Automatic cleaning device |
| 02/22/1990 | WO1990001435A1 Protective circuit for battery powered engine ignition system |
| 02/22/1990 | DE3827045A1 Polarity-reversal protection device for battery chargers |
| 02/21/1990 | EP0354902A1 Dual or single voltage vehicular power supply with improved switch |
| 02/21/1990 | CN1039941A Electronic regulator with charge indicating light relay |
| 02/20/1990 | US4903325 Portable wireless communication apparatus |
| 02/20/1990 | US4902956 Safety device to prevent excessive battery drain |
| 02/20/1990 | US4902955 Portable battery charger |
| 02/14/1990 | EP0354790A2 Method and apparatus for controlling power generation in internal combustion engines |
| 02/14/1990 | CN2052980U Electronic adjuster for generator |
| 02/14/1990 | CN2052979U Electric charger for mine lamp battery |
| 02/14/1990 | CN2052978U Plug-in charger in series with load of |
| 02/14/1990 | CN1039683A Battery charger with vbe temperature compensation circuit |
| 02/07/1990 | CN2052587U Saving energy automatic charger |
| 02/07/1990 | CN2052586U Multi-functional switch |
| 02/06/1990 | US4899209 Resin sealed semiconductor device |
| 02/06/1990 | US4898254 Electronic weighing apparatus |
| 02/01/1990 | DE3844607A1 Power supply circuit for a motor vehicle having two different consumption voltages |
| 02/01/1990 | DE3817730A1 Solar current from artificial light |
| 01/31/1990 | EP0352304A1 Vehicle circuit system |
| 01/31/1990 | CN2052158U Multifunctional charger assembled by several branch bulb holders |
| 01/30/1990 | US4897591 Regulated battery charger |
| 01/30/1990 | US4897044 Battery jumper cable |
| 01/24/1990 | EP0351941A2 Battery charger with vbe temperature compensation circuit |
| 01/24/1990 | CN2051798U Full automatic unintermittent power source |
| 01/23/1990 | US4896305 Animal luring device |
| 01/18/1990 | DE3824226A1 Solar balance |
| 01/16/1990 | US4894765 Bi-directional d.c./d.c. converter compatible with an inverter bridge |
| 01/10/1990 | EP0350077A2 Control apparatus for an A.C. generator for automobile |
| 01/10/1990 | EP0349995A2 Method for adapting a battery charger to different charging methods, battery types and battery charger |
| 01/10/1990 | EP0349836A2 A guarded electronic circuit from reversal of its supply battery polarity |
| 01/10/1990 | CN1006433B Method for charging nickel-cadmium fatteries and circuit arrangement for carrying out the method |
| 01/03/1990 | EP0348983A2 Method of charging and discharging battery and power source apparatus adopting the same |
| 01/03/1990 | CN1038555A Method and circuit for voltage regulation of dc power sources |
| 12/28/1989 | DE3829073C1 Safety discharge system for accumulators |
| 12/27/1989 | EP0347713A1 Power supply circuit for television receiver |
| 12/27/1989 | CN2050232U Practical transistor regulator for vehicle |