| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
|---|
| 09/12/1997 | WO1997033354A1 Integrated voltage regulating circuit useful in high voltage electronic encoders |
| 09/12/1997 | WO1997033285A1 A modular cache memory battery backup system |
| 09/12/1997 | CA2220391A1 A modular cache memory battery backup system |
| 09/11/1997 | DE19633202C1 Control system for motor vehicle door locking with emergency operating mode |
| 09/11/1997 | DE19609009A1 Electrical power supply to several loads |
| 09/10/1997 | EP0793862A1 Smart battery device |
| 09/10/1997 | CN1159087A Automatically-monitored and engine-driven assistant accumulator charging system |
| 09/02/1997 | US5663628 Battery system with levelled discharge |
| 08/28/1997 | WO1997031418A1 Uninterrutible power system with a flywheel-driven source of standby power |
| 08/26/1997 | US5661645 Power supply for light emitting diode array |
| 08/20/1997 | CN1157497A Power supply voltage supplying circuit |
| 08/19/1997 | US5659207 Uninterrupted power supply with a controlled operation of alternately charging and discharging of inductances |
| 08/19/1997 | US5659206 Electrical circuit system including voltage detector to selectively halt operation of an electrical circuit |
| 08/12/1997 | US5656925 Pulse switching tandem flyback voltage converter |
| 08/12/1997 | US5656871 Circuit arrangement for an uninterrupted power supply |
| 08/12/1997 | US5656869 Method and apparatus to maintain power using a fault-tolerant power supply and a temporary external power supply |
| 08/07/1997 | WO1997022171A3 Battery coupler |
| 08/07/1997 | DE19604207A1 Method for synchronising inverter output voltage with reference voltage |
| 08/05/1997 | US5654859 Fault tolerant power distribution system |
| 08/05/1997 | US5654634 Method for detecting gaps to be bridged in the power supply of an electric rail vehicle |
| 08/05/1997 | US5654591 Uninterruptible power supply with passing neutral, comprising a twin step-up chopper |
| 08/05/1997 | CA2089994C Automatic backup battery connection |
| 07/31/1997 | WO1997027660A1 Connection of a voltage regulator in a motor vehicle power supply network |
| 07/29/1997 | US5652502 Battery pack having a processor controlled battery operating system |
| 07/24/1997 | WO1997022170A3 No-break power supply |
| 07/24/1997 | DE19610800C1 Fault-tolerant traction drive converter for rail vehicles |
| 07/24/1997 | DE19602171A1 Beschaltung eines Spannungsreglers im Bordnetz eines Kfz's Wiring a voltage regulator in the electrical system of a vehicle's |
| 07/23/1997 | EP0784800A2 Motor vehicle battery circuit comprising monitoring of discharge and recharge current |
| 07/17/1997 | WO1997021265A3 System and method for providing uninterrupted power to on-board electrical equipment |
| 07/17/1997 | DE19600935A1 Mains-independent radio receiver with continuous standby capability |
| 07/17/1997 | DE19600851A1 Reserve circuit for preventing data loss during program control power supply drop-out e.g. for cooker |
| 07/15/1997 | US5648895 Flyback and charging circuitry for an uninterruptible power supply system |
| 07/10/1997 | WO1997015976A3 Direct voltage back-up system at a power supply outlet |
| 07/09/1997 | EP0774198A4 Modular uninterruptible lighting system |
| 07/08/1997 | US5646508 Battery pack having a processor controlled battery operating system |
| 07/08/1997 | US5646502 Emergency lighting circuit for shunt-regulated battery charging and lamp operation |
| 07/08/1997 | US5646486 Fail-safe uninterruptible lighting system |
| 07/08/1997 | US5646462 DC voltage bypass power system architecture |
| 07/08/1997 | US5646459 Integrated maintenance bypass switch and method of operation thereof |
| 07/08/1997 | US5646458 Uninterruptible power system with a flywheel-driven source of standby power |
| 07/02/1997 | CN1153072A Low-energy laser intravascular radiation therapeutic apparatus with spare battery |
| 07/01/1997 | US5644175 For coupling a source to a load through a junction |
| 06/24/1997 | US5642091 For controlling the timing and sequence of operative steps |
| 06/24/1997 | US5642029 Constant current battery charger with auxiliary output for portable apparatus |
| 06/24/1997 | US5642004 Power supply for standby circuits of electrical devices |
| 06/24/1997 | US5642002 Apparatus and methods for generating uninterruptible AC power signals |
| 06/19/1997 | WO1997022171A2 Battery coupler |
| 06/19/1997 | WO1997022170A2 No-break power supply |
| 06/19/1997 | CA2240198A1 No-break power supply |
| 06/19/1997 | CA2240197A1 Battery coupling apparatus |
| 06/18/1997 | CN1152142A Network hibernation system |
| 06/17/1997 | US5640078 Method and apparatus for automatically switching and charging multiple batteries |
| 06/17/1997 | US5640058 Kits for converting DC battery powered smoke detectors to AC power with battery back-up |
| 06/12/1997 | WO1997021267A1 Ups card |
| 06/12/1997 | WO1997021265A2 System and method for providing uninterrupted power to on-board electrical equipment |
| 06/12/1997 | CA2239621A1 System and method for providing uninterrupted power to on-board electrical equipment |
| 06/11/1997 | EP0777929A1 Fail-safe lighting system with load shedding and dimming |
| 06/10/1997 | US5638295 Transfer switch system with subnetwork |
| 06/10/1997 | US5638274 Electronic control apparatus for an air-bag system |
| 06/10/1997 | US5638244 Apparatus and methods for generating uninterruptible AC power signals |
| 06/04/1997 | EP0777310A2 Uninterruptible power supply with power factor correction |
| 06/03/1997 | US5636288 Standby power circuit arrangement |
| 06/03/1997 | US5635774 Zero power latchup suppression circuit |
| 06/03/1997 | US5635773 High efficiency, no dropout uninterruptable power supply |
| 06/03/1997 | US5635772 Method and apparatus for transferring between electrical power sources which adaptively blocks transfer until load voltage decays to safe value |
| 05/28/1997 | EP0617857B1 Power supply installation for an uninterruptible power supply to the load from the mains |
| 05/28/1997 | CN1150712A Apparatus and method for discharging and charging multiple battery arrangement |
| 05/27/1997 | US5633789 Failure-free power source device |
| 05/27/1997 | US5633573 Battery pack having a processor controlled battery operating system |
| 05/27/1997 | US5633572 Back-up power supply with replaceable battery pack |
| 05/27/1997 | US5633564 Modular uninterruptible lighting system |
| 05/27/1997 | US5633539 Uninterruptible power supply input power walk-in |
| 05/22/1997 | WO1997018621A1 Flywheel-speed sensing for an emergency-power engine |
| 05/22/1997 | WO1997018612A1 Fault tolerant power distribution system |
| 05/21/1997 | EP0774198A1 Modular uninterruptible lighting system |
| 05/20/1997 | US5631814 Uninterruptible power supply based on non-invasive connection of backup circuit to switch power supply |
| 05/20/1997 | US5630341 Method for processing cable and wire |
| 05/15/1997 | DE19644858A1 Energy storage protection system for car occupant |
| 05/15/1997 | DE19539928A1 Vorrichtung zur Pufferung der Gleichspannung am Ausgang einer Stromversorgung Apparatus for buffering the DC voltage at the output of a power supply |
| 05/06/1997 | CA2109406C Battery detecting device for a radio pager |
| 05/02/1997 | EP0771059A1 Method and apparatus for transferring between electrical power sources with adaptive blocks transfer until load voltage decays to safe value |
| 05/01/1997 | WO1997015976A2 Direct voltage back-up system at a power supply outlet |
| 04/30/1997 | CN1148747A Method and circuit for disconnecting transformer in depdendence on whether load connected thereto requires power, or not |
| 04/29/1997 | US5625237 Remove power source device having improved capacity indication capability, and an electronic device using the removable power source device |
| 04/24/1997 | WO1997015106A1 Arrangement for ensuring uninterrupted current supply to an electrical consumer |
| 04/23/1997 | CN2253094Y Cutoff-free energy saving lamp |
| 04/17/1997 | WO1997014206A1 Modular power supply |
| 04/17/1997 | DE19538381A1 Anordnung zur unterbrechungsfreien Stromversorgung elektrischer Verbraucher Arrangement for uninterruptible power supply of electrical loads |
| 04/17/1997 | CA2234449A1 Modular power supply |
| 04/15/1997 | US5621777 Pump drive system for recirculation of coolant flow in a nuclear reactor vessel |
| 04/15/1997 | US5621254 Uninterruptible power switching method and apparatus |
| 04/10/1997 | WO1997013310A1 Power management system |
| 04/10/1997 | WO1997013288A1 System using secondary cells |
| 04/10/1997 | DE19546420C1 Static fail-safe current supply device for variable speed drive |
| 04/10/1997 | DE19537199A1 Oven timer driven from mains |
| 04/09/1997 | CN2251858Y AC and dc electronic energy-saving daylight lamp |
| 04/08/1997 | US5619126 Circuit arrangement for automatically decreasing the load current |
| 04/08/1997 | US5619117 Battery pack having memory |
| 04/08/1997 | US5619077 For use with primary and secondary electrical loads |
| 04/03/1997 | WO1997012329A1 An apparatus and method for reducing power consumption through both voltage and frequency scaling |