Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437)
12/2001
12/27/2001US20010054846 Fault tolerant air bag bus system without transformer
12/26/2001CN2468206Y Uninterruption power source
12/25/2001US6333570 Power supply system with two batteries of different voltage
12/20/2001WO2001056133B1 Ac power generating system
12/20/2001US20010052758 Power supply apparatus, electrical equipment and power supply method
12/20/2001DE19938997C1 Notstromversorgung sowie dazugehöriges Verfahren Emergency power supply and associated method
12/19/2001EP1163621A2 Method and apparatus for medical covering group request processing, review and management
12/13/2001WO2001095457A1 Uninterruptible power supply
12/13/2001WO2001095456A1 External power supply control system for cellular phone
12/13/2001US20010051852 Location encoder
12/13/2001DE10125048A1 Unterbrechungsfreie Stromversorgungseinrichtung für einen Computer Uninterruptible power supply device for a computer
12/11/2001US6330463 Voltage supply apparatus, in particular for a radio telephone in a motor vehicle
12/11/2001US6330176 Multi-input power transfer and uninterruptible power supply apparatus and methods of operation thereof
12/11/2001US6330174 High efficiency uninterruptible power supply
12/11/2001US6330170 Soft-switched quasi-single-stage (QSS) bi-directional inverter/charger
12/11/2001US6329907 Emergency power system for traffic control signals
12/11/2001US6327858 Auxiliary power unit using compressed air
12/06/2001WO2001093410A1 Power system utilizing a dc bus
12/06/2001WO2001093404A1 Buffer circuit
12/06/2001WO2001093403A2 Backup battery recharge controller and battery reconnect system for a telecommunications power system
12/06/2001US20010048532 Image forming apparatus
12/06/2001US20010048286 Emergency power system, and system for automatically detecting whether or not failure of single cell occurs in battery for use in the same
12/06/2001CA2410729A1 Power system utilizing a dc bus
12/05/2001EP1160965A2 Apparatus and method for rapid fault detection and transfer in a utility-interactive uninterruptible power supply
11/2001
11/29/2001US20010047492 Uninterruptible power supply for automatically storing computer data in hard disk when halting
11/29/2001US20010045780 Battery communication system
11/29/2001US20010045779 Intelligent power system
11/29/2001US20010045778 Uninterruptible power supply
11/29/2001DE10025434A1 Current supply for switch-off critical systems, has first timer started at mains drop-out, reset if mains restored in support period, otherwise second timer starts, generates interrupt signal
11/28/2001CN1324133A Emergency power supply for elevator
11/28/2001CN1075679C Battery system and intermittent motion apparatus using same
11/22/2001US20010043013 High-temperature secondary battery based energy storage and power compensation system
11/21/2001EP1156573A2 High-temperature secondary battery based energy storage and power compensation system
11/21/2001EP1155259A1 Switch cover plate providing automatic emergency lighting
11/21/2001EP0939477B1 Uninterrupted electric power supply system
11/20/2001US6320279 Uninterrupted electric power supply system
11/15/2001DE10108017A1 Pseudobatteriepack, Batteriepack; Pseudo battery pack, battery pack; elektronische Vorrichtung und elektronisches Vorrichtungssystem electronic device and electronic device system
11/14/2001EP1153466A1 Emergency light system
11/14/2001CN1074865C Uninterruption power source and method for providing same for electric appliances
11/13/2001US6317348 UPS chassis design having an internal support structure
11/13/2001US6317346 Redundant multiphase power supplies for common load device
11/13/2001US6316911 Battery and flashlight recharger
11/08/2001US20010038635 Local area network (LAN) packet switch remote power system
11/07/2001EP1151518A1 Ferroresonance-suppressing static transfer switch
11/07/2001EP1151489A1 Fuel cell stand-by energy supply system
11/07/2001CN1321351A Uninterruptible power supply system, voltage regulator and operating methods employing controlled ferroresonant transformer circuits
11/07/2001CN1074598C Non-break power supply
11/06/2001US6314007 Multi-mode power converters incorporating balancer circuits and methods of operation thereof
11/06/2001US6313548 Power switching device
11/06/2001US6313543 Generator system with vertically shafted engine
11/01/2001WO2001082260A2 System and method for managing uninterruptible power supply systems
11/01/2001WO2001081122A1 Fault tolerant air bag bus system without transformer
11/01/2001WO2001081120A1 Battery switching device and emergency alerting system comprising this
11/01/2001US20010035735 Pseudo battery pack, battery pack, electronic apparatus, and electronic apparatus system
10/2001
10/31/2001CN1319924A Power source system switching device
10/31/2001CN1074195C Battery coupler
10/30/2001US6311279 Network node with internal battery backup
10/30/2001US6310783 Modular method and apparatus for building an uninterruptible power system (UPS)
10/30/2001US6310404 Generator system with vertically shafted engine
10/25/2001WO2001080026A2 Bus control module
10/25/2001US20010033505 Method and apparatus for converting a DC voltage to an AC voltage
10/25/2001US20010033502 Modular uninterruptible power supply
10/25/2001DE10017902A1 Switching arrangement for supplying uninterruptable power to consumers, has gate of MOSFET controlled by inverter whose input is coupled to main voltage source
10/24/2001EP1147592A1 A reserve power system for any battery operated device
10/24/2001EP0947042B1 Hybrid generator apparatus
10/24/2001CN1319274A Battery monitor and battery device
10/23/2001US6308059 Ruggedized tradesworkers radio
10/18/2001WO2001078449A1 Battery monitor and power demand adjuster
10/18/2001WO2001078212A1 Emergency lighting system
10/18/2001US20010030469 Backup power-source module, backup power-source apparatus, and computer
10/18/2001CA2402470A1 Battery monitor and power demand adjuster
10/17/2001EP0615667B2 Arrangement for the off-mains switching of control devices
10/16/2001US6304006 Energy management uninterruptible power supply system
10/16/2001US6304005 Power supply apparatus and method, and fabrication apparatus
10/11/2001WO2001074703A1 Emergency power supply device for lift systems
10/10/2001EP1143595A2 Emergency power system, and system for automatically detecting battery failure
10/10/2001EP1142748A2 Power controller for a vehicle
10/10/2001EP1142093A1 System and method for alternating standby mode
10/10/2001EP1142078A1 Load shifting control system for commercial refrigeration
10/10/2001EP1040482B1 Integrated-circuit memory with a buffer circuit
10/04/2001WO2001073921A2 Method and apparatus for coordinating uninterruptible power supply modules to provide scalable, redundant power
10/04/2001WO2001073920A2 Methods, systems, and computer program products for communications in uninterruptible power supply systems using controller area networks
10/04/2001WO2001073915A2 Distributed internal fault bypass in a modular uninterruptible power supply
10/04/2001WO2001073914A2 System for detecting defective battery packs
10/03/2001CN1316126A Emergency operation device for facility with electric motor
10/02/2001US6297972 Backup power stage associated with a dual input power supply and method of operating the same
09/2001
09/27/2001WO2001071885A1 Uninterruptible power supplies employing fuel cells
09/27/2001WO2001071244A1 Lighting units
09/27/2001US20010024065 Spare bus power plant
09/26/2001EP1137151A1 Power saving circuit
09/26/2001CN2450816Y Double AC power supply auto-switching device
09/25/2001US6295215 AC power supply apparatus with economy mode and methods of operation thereof
09/20/2001WO2001069752A1 Heat/electric power supply system having power storage unit
09/20/2001WO2001018939A3 Method and apparatus for delivering uninterrupted power
09/20/2001US20010022472 Method and apparatus for providing uninterrupted power during transitions between a power source and a standby generator using capacitor supplied voltage
09/20/2001DE10013476A1 Current-saving circuit for automobile provides selective de-activation of rest current loads not required during long standing time of automobile
09/20/2001DE10009770A1 Electronic controller for motor vehicle transfers data from working memory to non-volatile memory on detecting switch-off or interruption of external electrical supply to controller
09/18/2001US6292379 Distributed internal fault bypass in a modular uninterruptible power supply
09/18/2001US6292233 Device controller with low power standby mode
09/13/2001WO2001067199A1 Device for controlling power distribution to subsystems