Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02J - Circuit arrangements or systems for supplying or distributing electric power; Systems for storing electric energy › H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437)
09/2005
09/29/2005DE102004009583A1 Ballast for e.g. gas-discharge lamp, has capacitor and resistor forming dim arrangement that reduces lamp current supplied to lamp by receiving failure signal, which indicates failure of supply voltage
09/28/2005EP1579547A1 Uninterruptable power supply and generator system
09/28/2005CN2729999Y Power source switch device
09/28/2005CN2729992Y Emergency additional power supply for power cut-off of rover
09/28/2005CN1674404A Redundant electric power system
09/28/2005CN1674397A Method and apparatus for double-directional emergency power supply
09/27/2005US6950764 Arrangements to detect and respond to disturbances in electrical power systems
09/27/2005US6949843 Grid-connected power systems having back-up power sources and methods of providing back-up power in grid-connected power systems
09/22/2005WO2005088819A1 Switching power supply device
09/22/2005WO2005086570A2 Fuel control system and method for distributed power generation, conversion, and storage system
09/22/2005US20050208344 Power supply
09/22/2005US20050207195 Apparatus and methods for regulating electric power
09/22/2005US20050207082 Dual bus static tie switch
09/22/2005US20050206769 Digital radiography detector with thermal and power management
09/22/2005US20050206343 Power generation system and control method
09/22/2005US20050206242 DC backup power supply system
09/22/2005US20050206241 Web-enabled UPS
09/22/2005DE102005009494A1 Tragbare Bildaufnahmevorrichtung und Versorgungsspannungs-Umschaltsteuerverfahren Portable imaging device and supply voltage switching control
09/22/2005DE102005006851A1 Interruption free current system for temporary current supply to mains users has hydraulically driven turbine and electric generator for dc circuit
09/21/2005EP1578176A2 Integrated system for the diagnosis and controlling of fluorescent lamps
09/21/2005EP0855097B1 Modular power supply
09/21/2005CN2728083Y External emergency input port protector for electronic products
09/21/2005CN2728082Y An automatic changeover switch for power supply
09/21/2005CN1671033A System for controlling the delivery of power to DC computer components
09/20/2005CA2118196C An electronic control apparatus for an air-bag system
09/15/2005WO2005086542A1 Lighting equipment
09/15/2005WO2005086316A1 Devices and methods for detecting the presence of a source of power
09/15/2005WO2005086315A1 Method and apparatus for controlling a battery
09/15/2005US20050201127 Multi-mode uninterruptible power supplies and methods of operation thereof
09/15/2005US20050200288 Emergency lighting function illumination appliance
09/15/2005US20050200205 On-site power generation system with redundant uninterruptible power supply
09/15/2005US20050200133 Separate network and method for operating a separate network
09/15/2005DE102004008935A1 Spare voltage supply device for a control unit in a motor vehicle on board circuit has principal supply and lower power emergency supply
09/15/2005CA2556668A1 Method and apparatus for controlling a battery
09/14/2005EP1297724A4 Rechargeable lamp system
09/13/2005US6944035 Power factor corrected UPS with improved connection of battery to neutral
09/13/2005US6944004 Arrangements to detect and respond to disturbances in electrical power systems
09/13/2005US6944002 Automatic transfer switch and protection device
09/13/2005US6943463 System and method of testing connectivity between a main power supply and a standby power supply
09/09/2005WO2005083867A1 Electric storage augmentation of fuel cell response to ac system transients
09/09/2005WO2005083864A2 Scr-based static transfer switch device and method
09/09/2005WO2005043711A3 Systems and methods for switching to a back-up power supply
09/08/2005US20050195625 Portable photographing apparatus and power switching control method
09/08/2005US20050195090 Devices and methods for detecting the presence of a source of power
09/08/2005US20050194937 Battery controller and method for controlling a battery
09/07/2005EP1571748A1 Capacitor unit
09/07/2005EP1210757A4 Transfer mechanism for transferring power between a utility source and a stand-by generator
09/07/2005CN1665097A Power supply system for supplying power to an electronic apparatus
09/06/2005US6941233 Arrangements to detect and respond to disturbances in electrical power systems
09/06/2005US6940188 Electric power converting device
09/06/2005US6940187 Robust controller for controlling a UPS in unbalanced operation
09/06/2005US6938733 Emergency power supply device for lift systems
09/01/2005US20050190512 Electric power system and method of operating the same
09/01/2005US20050189819 Power supply system for supplying power to an electronic apparatus
08/2005
08/31/2005EP1568120A2 Stand-by power supply shutdown at power on
08/31/2005EP1186094B1 Method and apparatus for converting a dc voltage to an ac voltage
08/31/2005CN2722490Y Automatic power supplier from other power network
08/30/2005US6937490 Dual input AC and DC power supply having a programmable DC output utilizing a modular programmable feedback loop
08/25/2005WO2005078893A1 Transfer switch device and method
08/25/2005WO2005069240A3 Fire detector
08/25/2005US20050185352 Generation and distribution of a dual-redundant logic supply voltage for an electrical system
08/25/2005US20050184594 Electric storage augmentation of fuel cell response to AC system transients
08/25/2005US20050184593 Battery communication system
08/25/2005US20050184592 Static transfer switch device and method
08/25/2005US20050184591 Transfer switch device and method
08/25/2005US20050184590 Redundant input power system
08/25/2005US20050184589 Method of supplying electric power from shore to ship and system thereof
08/25/2005DE102005004668A1 Encoder e.g. linear encoder for detecting rotation of motor used in robot, has backup power supply with auxiliary power supply for supplying backup power during interruption of main power supply, at the time of replacement of main battery
08/24/2005EP1565983A1 Power supply circuit of a high speed electric motor
08/24/2005EP1565923A2 Consumer unit
08/24/2005EP1366553A4 Integrated uninterruptible power supply enclosure
08/24/2005CN1658471A Remote oil machine, electric network monitoring device and its harmonic analysis monitoring method
08/23/2005US6933678 Emergency lighting function illumination appliance
08/23/2005US6933627 High efficiency lighting system
08/23/2005US6933626 Ferroelectric transformer-free uninterruptible power supply (UPS) systems and methods for communications signal distribution systems
08/17/2005EP1563581A1 A plant for the exploitation of renewable energy sources in combination with traditional energy sources, particularly for the heating and cooling of dwellings
08/17/2005EP1034597B1 Charge circuits for ups
08/17/2005CN2718882Y Emergency power source system for intelligent carburetor
08/17/2005CN1656507A Method for controlling the charging and discharging phases of a backup capacitor
08/16/2005US6931332 Method and system for testing battery connectivity
08/16/2005US6930402 Power system for a telecommunication facility
08/11/2005WO2005074116A1 Power conversion apparatus and methods using dc bus shifting
08/11/2005WO2005074097A2 Modular ups
08/11/2005WO2005074096A1 Methods and apparatus for providing uninterruptible power
08/11/2005WO2005074056A2 Power terminal block
08/11/2005WO2005073014A1 Auxiliary power supply for vehicle
08/11/2005US20050177780 Powered interface card and method of providing backup power supply
08/11/2005US20050177757 Power distribution system having redundant mixed sources and method
08/11/2005US20050177756 Power distribution system utilizing redundant AC sources or DC sources
08/10/2005EP1561274A2 Power system for a telecommunication facility
08/10/2005EP1561271A2 Rectifier-super capacitor device for use in a power system for a telecommunication facility.
08/10/2005EP1561270A2 Proton exchange membrane based power system for a telecommunication facility
08/10/2005CN2717094Y Backup generator for engine
08/10/2005CN1653671A Power supply unit
08/10/2005CN1652428A Multifunctional controller for rolling gate
08/04/2005WO2005071885A1 Configurable multiple power source system
08/04/2005US20050170893 Gaming machine power fail enhancement
08/04/2005US20050168189 Power supply unit
08/04/2005US20050168073 Uninterruptible power supply system and method
08/03/2005EP1559179A2 Hybrid variable speed generator/uninterruptible power supply power converter
1 ... 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 ... 165