| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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| 04/01/1997 | US5616968 Expandable AC power supply device |
| 03/26/1997 | EP0765023A2 Back-up power supply with replaceable battery pack |
| 03/26/1997 | EP0765022A2 Uninterruptive switching regulator |
| 03/18/1997 | US5612859 Battery polarity switch for generating low frequency voltage waveforms |
| 03/18/1997 | US5612581 Power supply apparatus with a back-up power unit |
| 03/18/1997 | US5612580 Uninterruptible power system |
| 03/12/1997 | EP0762598A2 Transfer switch system with subnetwork |
| 03/11/1997 | US5610958 Reactor circulating pump system |
| 03/11/1997 | US5610805 Uninterruptible power supply with a back-up battery coupled across the a.c. input |
| 03/11/1997 | US5610498 Circuit and method for controlling charging of a battery |
| 03/11/1997 | US5610497 Method and apparatus for providing continuous power to a battery powered device during battery transfer |
| 03/11/1997 | US5610496 Dual battery control system |
| 03/11/1997 | US5610451 Uninterruptible power supply with power factor correction |
| 03/11/1997 | US5610450 Power supply apparatus for efficiently utilizing battery and electronic apparatus using the power supply |
| 03/11/1997 | US5609448 Apparatus for manufacturing plate for gravure |
| 03/04/1997 | US5608273 Battery back-up for electronic circuits |
| 02/26/1997 | EP0759655A2 Method and device for reducing power consumption of an electric apparatus fed by a voltage converter |
| 02/25/1997 | US5606245 Power supply systems |
| 02/25/1997 | US5606244 Mobile AC power source system |
| 02/25/1997 | CA2144966C Tracking external power supply |
| 02/25/1997 | CA2138504C Method and circuit for maintaining charge in a backup battery |
| 02/25/1997 | CA2134954C Standby power apparatus |
| 02/20/1997 | DE19530721A1 Control unit e.g. for motor vehicle electric windows, anti-theft warning and locks |
| 02/19/1997 | EP0758838A2 Emergency lamp with conventional ballast |
| 02/19/1997 | CN1143277A Non-interruption power supply device and method |
| 02/13/1997 | WO1997005685A1 Method and device for supplying electrical energy, and apparatus provided with such a device |
| 02/12/1997 | EP0758153A2 Circuit device for disconnecting a transformer not under load |
| 02/11/1997 | US5602805 Disk drive apparatus and method including power backup |
| 02/11/1997 | US5602726 Uninterruptive switching regulator |
| 02/11/1997 | US5602462 Uninterruptible power system |
| 02/11/1997 | US5602456 Hand held computerized data collection terminal with rechargeable battery pack sensor and battery power conservation |
| 02/09/1997 | CA2182837A1 Transfer switch system with subnetwork |
| 02/08/1997 | CA2182730A1 Method and circuit for disconnecting a transformer in dependence on whether a load connected thereto requires power, or not |
| 02/05/1997 | CN1142114A Spare electric-power supply using dc.-dc. converter |
| 02/04/1997 | US5600217 CMOS disk drive motor control circuit having back-EMF regulator circuitry |
| 01/23/1997 | DE19526846A1 Data transfer to spinning stations with no troublesome special buses |
| 01/22/1997 | CN2245818Y Micro-computer monitoring device for electric generating set |
| 01/22/1997 | CN1140907A Battery continuation apparatus and method thereof |
| 01/21/1997 | US5596492 Method and apparatus for de-centralized signal frequency restoration in a distributed UPS system |
| 01/21/1997 | CA2143949C Electronic device for controlling application of a charging current thereto and associated method therefor |
| 01/15/1997 | EP0683933B1 An emergency power system |
| 01/14/1997 | US5594313 For storing electric power |
| 01/07/1997 | US5592137 High efficiency, high frequency transformer |
| 01/07/1997 | US5592030 Power supply for energizing DC load from AC or DC source |
| 01/07/1997 | CA2116981C Power supply with battery disconnect |
| 01/03/1997 | WO1997000548A1 Uninterruptible power supply |
| 01/02/1997 | DE19626468A1 Battery control system for multi-battery systems for vehicles, ships and aircraft etc |
| 12/27/1996 | WO1996042133A1 Energy transfer system of an electric machine having magnetic bearings |
| 12/24/1996 | US5587577 Modular scanner with hand-held data terminal |
| 12/19/1996 | WO1996036100A3 Process and circuitry to cover peak energy demands in electric alternating or three-phase current networks |
| 12/19/1996 | WO1996036099A3 Power control circuit for a battery operated device |
| 12/18/1996 | EP0749168A1 Solar cell system |
| 12/17/1996 | US5585760 Regulated power supply wherein a battery source is supplemented by auxiliary power provided by data signals |
| 12/17/1996 | US5585677 Backup power-supply system for emergency |
| 12/17/1996 | CA2132419C A power supply and battery charging system |
| 12/12/1996 | DE19520596A1 Combined data and energy transmission system |
| 12/11/1996 | EP0747957A2 Power supply isolation and switching circuit |
| 12/11/1996 | CN2242390Y Lighting device with no-interruption function |
| 12/10/1996 | US5583419 Power supply systems |
| 12/10/1996 | US5583417 Power sharing detector for use with a battery charger and an auxiliary device |
| 12/05/1996 | WO1996039008A1 Modular uninterruptible lighting system |
| 12/05/1996 | WO1996038896A1 Fail-safe lighting system with load shedding and dimming |
| 12/03/1996 | US5581772 Power supply control system for a portable computer |
| 12/03/1996 | US5581133 Combination transfer and bypass isolation switch utilizing drawout protective devices and key interlocks |
| 11/29/1996 | CA2177529A1 Power supply |
| 11/26/1996 | US5579197 Backup power system and method |
| 11/26/1996 | US5578876 Unique computer power system with backup power |
| 11/26/1996 | US5578875 Dual battery recharger with backup power feature for use in systems having a base unit and battery-powered portable unit |
| 11/26/1996 | CA2142644C Standby power circuit arrangement |
| 11/21/1996 | WO1996037027A1 Mains operated electric equipment |
| 11/20/1996 | EP0571383B1 Battery protection system |
| 11/20/1996 | CN2240666Y Emergency electronic energy-saving lamp and emergency illumination set |
| 11/19/1996 | US5576941 Modular power supply system |
| 11/19/1996 | US5576686 Switch arrangement for reducing the closed circuit current when motor vehicles are parked |
| 11/19/1996 | US5576581 Door control system and release mechanism |
| 11/14/1996 | WO1996036100A2 Process and circuitry to cover peak energy demands in electric alternating or three-phase current networks |
| 11/14/1996 | WO1996036099A2 Power control circuit for a battery operated device |
| 11/14/1996 | DE19517698A1 Determining self sufficiency of safety system in passenger transport vehicle |
| 11/14/1996 | DE19516838A1 Verfahren und Schaltungsanordnung zur Deckung von Energiespitzenbedarf bei elektrischen Wechselstrom- bzw. Drehstromnetzen Method and circuit arrangement to cover energy peak demand for electrical AC or three-phase systems |
| 11/12/1996 | US5574753 Glitch free clock start/stop control circuit for outputting a single clock signal and a single sync signal from a plurality of sync signal inputs and a plurality of clock signal inputs |
| 11/12/1996 | US5574345 Power supply circuit for magnetic bearing system |
| 10/30/1996 | EP0739546A1 Uninterruptible power supply |
| 10/29/1996 | US5569997 Power supply for volatile memory devices and portable electrical appliance in vehicles |
| 10/24/1996 | DE19546421C1 Battery coupling device e.g. for uninterrupted current supply |
| 10/23/1996 | EP0739075A1 Power supply system |
| 10/22/1996 | US5568370 Tactical power adapter |
| 10/22/1996 | US5568038 Portable electric equipment and rechargeable built-in batteries |
| 10/22/1996 | US5567996 For supplying power to an ac load |
| 10/22/1996 | US5567993 Programmable power supply system and methods |
| 10/22/1996 | CA2137860C Emergency lighting system incorporating selective control of fixtures |
| 10/15/1996 | US5565757 Charge control apparatus and electronic apparatus provided with such a control apparatus |
| 10/15/1996 | US5565714 Power conservation circuit |
| 10/15/1996 | US5564737 Vehicular passenger protection system |
| 10/09/1996 | CN1132968A Electronic device with two power supply modes |
| 10/08/1996 | US5563802 Generator power system and method |
| 10/08/1996 | US5563778 Uninterruptible power supply system |
| 10/08/1996 | US5563493 Power source system of portable information processing system using battery |
| 10/02/1996 | EP0734906A2 Current alimentation circuit for a digital calculation circuit |
| 10/02/1996 | EP0734606A1 Internal backup power device for a computer |
| 09/26/1996 | DE19530594C1 Electrical device energy consumption reduction system |