| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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| 08/11/1998 | CA2140535C Electronic device having internal charge regulator for controlling application of a charging current thereto and associated method therefor |
| 08/06/1998 | WO1998034314A1 Uninterruptible power supply |
| 08/06/1998 | CA2258340A1 Uninterruptible power supply |
| 08/05/1998 | EP0856207A1 Power management system |
| 08/05/1998 | CN2287349Y Uninterrupted power supply with strong non-linear load capacity |
| 08/04/1998 | US5790961 Power control circuit for a battery operated device |
| 08/04/1998 | US5790873 Method and apparatus for power supply switching with logic integrity protection |
| 08/04/1998 | US5790391 Standby power system |
| 08/04/1998 | US5789899 Smart battery system with an A/D converter that converts both positive and negative analog input signals |
| 08/04/1998 | US5789828 Low voltage power supply and distribution center |
| 08/04/1998 | US5789098 Method of detecting external voltage source for disablement of battery conservation mode in a portable communications device |
| 07/29/1998 | EP0855098A1 Arrangement for ensuring uninterrupted current supply to an electrical consumer |
| 07/29/1998 | EP0855097A1 Modular power supply |
| 07/28/1998 | US5786685 For supplying interrupted power during transients to a load |
| 07/28/1998 | US5786642 Modular power management system and method |
| 07/28/1998 | US5786641 Failure detection system for detecting a failure in a power converter |
| 07/21/1998 | US5784626 Battery connecting device for a computer system and a method of switching batteries |
| 07/21/1998 | US5783964 Backup battery switch with first power up control |
| 07/21/1998 | US5783932 Power generation plant and control apparatus therefor |
| 07/21/1998 | US5783927 Portable power supply unit providing backup battery, battery charger, and universal adapter |
| 07/14/1998 | US5781448 Control system and control method for uninterruptible power supply |
| 07/14/1998 | US5781422 Uninterruptible power supply with AC and DC power inputs |
| 07/14/1998 | US5781013 Battery management system for electric vehicle |
| 07/07/1998 | US5778325 System for providing electrical power to modular electronic components |
| 07/07/1998 | US5777454 Back-up battery management system for a DC power supply |
| 07/07/1998 | US5777398 Internal backup power device for a computer |
| 07/02/1998 | WO1998028832A1 Hybrid generator apparatus |
| 07/01/1998 | EP0850506A1 Device for supplying power in a motor vehicle |
| 07/01/1998 | CN1038962C Data processing system and power supply, and method for using the supply |
| 06/25/1998 | DE19745747A1 Power conversion system for bi-directional conversion between hydraulic and electrical energy, e.g for aircraft |
| 06/23/1998 | US5771161 Uninterruptable capability for an active power line conditioner |
| 06/23/1998 | US5770897 For switching a load between first and second sources |
| 06/18/1998 | WO1998026488A2 Standby power system |
| 06/18/1998 | WO1998013744A3 Method and arrangement for controlling functions in a programme-controlled circuit in the event of operating voltage failure |
| 06/16/1998 | US5767591 Method and apparatus for providing startup power to a genset-backed uninterruptible power supply |
| 06/16/1998 | CA2113328C Control device for system interconnection inverter |
| 06/10/1998 | EP0847124A1 Emergency power system for providing temporary power in case of failure of a principal power source |
| 06/10/1998 | EP0846363A1 Accumulator device for an electrical and/or electronic apparatus and telecommunication terminal comprising such a device |
| 06/10/1998 | EP0631696B1 A power supply and battery charging system |
| 06/10/1998 | CN2283943Y Uninterruption AC, DC power-supply screen for small substation electric power plant |
| 06/10/1998 | CN2283788Y High-efficiency emergency lamp |
| 06/10/1998 | CN1184392A Electronic products with standby power source |
| 06/09/1998 | US5764504 Uninterruptible power supply with fault tolerance in a high voltage environment |
| 06/09/1998 | US5764502 Integrated electric power system |
| 06/09/1998 | US5764099 Integrated voltage regulating circuit useful in high voltage electronic encoders |
| 06/09/1998 | US5764031 Method and apparatus for supplying a power source to an electronic apparatus |
| 06/05/1998 | CA2222006A1 Emergency power supply to replace a main power supply on a temporary basis |
| 06/02/1998 | US5761084 Highly programmable backup power scheme |
| 06/02/1998 | US5760495 Inverter/charger circuit for uninterruptible power supplies |
| 06/02/1998 | US5760491 Method and circuit for disconnecting a transformer in dependence on whether a load connected thereto requires power, or not |
| 05/28/1998 | DE19649148A1 Electrically operated actuator unit e.g. for system, such as camshaft control device, on IC engine |
| 05/27/1998 | EP0844721A2 Circuit for telephone system power supplies |
| 05/26/1998 | US5757148 Method of and apparatus for stopping a motor having magnetic bearings |
| 05/22/1998 | WO1998021914A2 Power supply system for a load, and use |
| 05/22/1998 | WO1998021886A1 Standby power supply for video display apparatus |
| 05/22/1998 | WO1998021885A1 Power supply for standby mode operation |
| 05/20/1998 | EP0843399A2 Battery backed configurable output buffer |
| 05/20/1998 | EP0843398A2 Backup battery switch |
| 05/20/1998 | EP0842558A1 Method and device for supplying electrical energy, and apparatus provided with such a device |
| 05/20/1998 | CN1038460C Voltage stabilizer |
| 05/20/1998 | CN1038459C Backup power-supply system for emergency |
| 05/19/1998 | US5754868 Electronic apparatus having conventional and battery power sources, and having a battery discharge mode wherein a first portion of the apparatus is powered by the conventional power source and a second portion of the apparatus is powered by the battery |
| 05/14/1998 | DE19646626A1 Anordnung zur Stromversorgung einer Last sowie Verwendung Arrangement for supplying power to a load and use |
| 05/14/1998 | DE19645951A1 Automatic mains isolator switch for building systems management |
| 05/13/1998 | CN1038377C Power supply appts. |
| 05/12/1998 | US5751564 Dual/multiple voltage level input switching power supply |
| 05/06/1998 | EP0840014A1 Pumping set with a circuit enabling the saving of energy from the emergency power source |
| 05/05/1998 | US5747891 Method of blocking bidirectional flow of current |
| 05/05/1998 | US5747890 Power supply switch reference circuitry |
| 05/05/1998 | US5747888 Back up system for the supply of voltage in television cable systems |
| 05/05/1998 | US5747887 Multi-function electric power conversion system |
| 05/05/1998 | US5747786 Communication module for a data capture system |
| 04/30/1998 | WO1998018188A1 Power supply for cellular communication stations |
| 04/29/1998 | EP0838396A1 Power converting system for bidirectional conversion between hydraulic and electrical energy |
| 04/28/1998 | US5745670 Fault tolerant power supply system |
| 04/28/1998 | US5745375 For use by an electronic device |
| 04/28/1998 | US5745356 Independent load sharing of AC power systems connected in parallel |
| 04/28/1998 | US5745355 Wireless selective tripping of AC power systems connected in parallel |
| 04/28/1998 | US5744923 Microprocessor-based controller for actuator motors with capacitive power backup and method therefor |
| 04/28/1998 | US5744876 Capacitive backup power source for electromechanical actuator |
| 04/23/1998 | WO1998016985A1 Uninterruptible power supplies having cooled components |
| 04/16/1998 | DE19730788A1 Electric motor drive for furniture |
| 04/16/1998 | DE19641592A1 Automatic door drive with mains and auxiliary battery |
| 04/14/1998 | US5740529 Method and apparatus for controlling power supplied to a receiver based on detection of errors in groups of data in a signal being received by said receiver |
| 04/14/1998 | US5739667 Control system for charging batteries and electronic apparatus using same |
| 04/14/1998 | US5739639 Method and apparatus for operating LED array and charging battery for emergency LED operation including DC boost circuit allowing series connection of LED array and battery |
| 04/14/1998 | US5739595 Apparatus and methods for generating an AC power signal for cable tv distribution systems |
| 04/14/1998 | US5739594 Controller for automatic transfer switches |
| 04/14/1998 | US5738954 Battery continuation apparatus and method thereof |
| 04/07/1998 | US5737209 Power quality and demand management module |
| 04/07/1998 | US5737204 Method and apparatus for interfacing battery backup to power factor correction front end for maintaining power |
| 04/07/1998 | US5736833 Rapid battery charging circuit with overvoltage shunt |
| 04/07/1998 | US5736793 Control system for electrical components of a motor vehicle |
| 04/02/1998 | WO1998013744A2 Method and arrangement for controlling functions in a programme-controlled circuit in the event of operating voltage failure |
| 04/02/1998 | DE19640036A1 Actively illuminated light path system |
| 04/02/1998 | DE19639644A1 Verfahren und Anordnung zur Steuerung von Funktionen in einer programmgesteuerten Schaltungsanordnung bei Ausfall der Betriebsspannung Method and apparatus for controlling functions in a program-controlled circuitry failure of the operating voltage |
| 04/01/1998 | EP0833424A2 Live AC mains power selector for redundant systems |
| 03/31/1998 | US5734239 Automatic generator start up and shut off device |
| 03/31/1998 | US5734230 Fail-safe lighting system with load shedding and dimming |
| 03/31/1998 | US5734229 Back-up electrical system for portable table lamps |