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)
12/1998
12/08/1998US5847550 Exit sign having a pulse switching tandem flyback voltage converter and a backup battery
12/03/1998WO1998054817A1 Power pack
12/03/1998WO1998054815A1 Integrated electric power system
12/02/1998EP0881740A2 Power supplies for portable electrical devices
12/02/1998CN1200812A UPS for medical imaging system
12/01/1998US5845217 Power systems for plug-in modules
12/01/1998US5844329 On an aircraft
12/01/1998US5844328 Backup device for electric appliance
12/01/1998US5844327 Apparatus and method for optimizing power distributed in a broadband signal system
12/01/1998US5844325 Vehicle dual battery controller utilizing motion sensor
11/1998
11/24/1998US5839766 In a fire control system
11/17/1998US5838085 Versatile AC dynamo-electric machine
11/12/1998WO1998050997A1 Methods and apparatus for providing protection to batteries in an uninterruptible power supply
11/11/1998EP0876701A1 Connection of a voltage regulator in a motor vehicle power supply network
11/11/1998EP0687395B1 Process for preventing damage to numerically controlled machines in the event of a power failure
11/11/1998CN1198851A Accumulator device for an electrical and/or electronic apparatus and telecommunication terminal comprising such a device
11/10/1998US5834859 Battery backed configurable output buffer
11/10/1998US5834858 Emergency power supply
11/10/1998US5834857 Power supply device for communication apparatus
11/10/1998US5834854 Motor vehicle electrical system
11/10/1998US5834753 Laser scanner module having integral interface with hand-held data capture terminal proximity and label sensing, and enhanced sensitivity and power efficiency
11/04/1998EP0875983A2 A power supply apparatus
11/04/1998EP0875978A1 Battery-powered apparatus
11/04/1998EP0875977A2 Improved smart battery selector
11/03/1998US5831945 Record medium erasing device with variable control in accordance with power supply characteristics
11/03/1998US5831346 Method and apparatus for control of power supply coupling on computer backplane
11/03/1998CA2108073C Single transformer switching regulator
11/02/1998CA2236433A1 Battery operated apparatus
10/1998
10/28/1998EP0874440A1 System and method for supplying electrical power to electronic devices
10/28/1998CN1040474C Process for determing the backup time of a battery
10/27/1998US5828207 Hold-up circuit with safety discharge for preventing shut-down by momentary power interruption
10/21/1998EP0804827B1 Uninterruptible power supplies
10/21/1998CN1196837A Electric power supply device for producing plurality of voltages and apparatus comprising such device
10/21/1998CA2233410A1 System and process for supplying electricity to electronic equipment
10/20/1998US5825674 Power control for mobile electronics using no-operation instructions
10/20/1998US5825648 Backup system for a time of day clock in an electronic device
10/20/1998US5825100 Intelligent battery power system
10/20/1998US5825099 Uninterruptible power supply circuit
10/15/1998WO1998026488A3 Standby power system
10/13/1998US5821636 For use in computer systems
10/13/1998US5821630 Flywheel-speed sensing for control of an emergency-power engine
10/08/1998WO1998044278A1 System for operating a control device in a motor vehicle
10/08/1998DE19814288A1 System to operate control circuit in car
10/06/1998US5818673 Electric power distribution system having fault bypass feature
10/06/1998US5818125 Backup power system for a telecommunications system
10/06/1998CA2092887C Charge control apparatus and electronic apparatus provided with such a control apparatus
10/01/1998WO1998043341A1 Flywheel power supply
09/1998
09/30/1998EP0867064A2 System and method for providing uninterrupted power to on-board electrical equipment
09/30/1998EP0867063A2 Battery coupler
09/30/1998EP0867062A2 No-break power supply
09/30/1998CN1040055C An emergency power system
09/29/1998US5814972 Method of operating a power supply control apparatus
09/29/1998US5814971 Emergency florescent inverter for magnetic and electronic ballasts
09/29/1998US5814904 Method for providing alternate current paths to a junction
09/29/1998US5814898 Uninterruptable power supply device for a motor
09/24/1998WO1998041793A2 High efficiency lighting system
09/24/1998DE19811899A1 Current distribution system and current supply for motor vehicle
09/24/1998DE19811626A1 Current supply system for motor vehicles
09/23/1998EP0866538A2 Uninterruptible power supply
09/22/1998US5812391 Door control system and release mechanism
09/22/1998US5811960 Battery-less uninterruptable sequel power supply
09/22/1998US5811938 Emergency lighting ballast for starting and operating two compact fluorescent lamps with integral starter
09/22/1998US5811895 Power supply circuit for use with a battery and an AC power adaptor
09/22/1998US5811890 Charge control apparatus
09/15/1998US5808421 Ballast circuit having dual voltage source and emergency battery
09/15/1998US5808376 Method of and apparatus for power management and distribution in a medical imaging system
09/15/1998US5806307 Exhaust gas-purifying system for internal combustion engines
09/09/1998CN1192601A Invertible power supply for emergency lighting
09/08/1998US5804894 Low voltage battery pack monitoring circuit with adjustable set points
09/08/1998US5804891 Battery saving switching mechanism
09/08/1998US5804890 Direct current voltage power backup system
09/08/1998US5804889 Un-interruptible power supply apparatus for diffusion furnace
09/08/1998US5803754 Modified receptacle and plug for low voltage DC distribution
09/03/1998WO1998038778A2 Arrangement in which a useful signal is transmitted between at least two device units
09/03/1998WO1998038727A2 Dc-dc converter with multiple outputs turned on and off in certain sequence
09/03/1998WO1998038720A1 Battery charger with low standby current
09/02/1998EP0861519A1 Flywheel-speed sensing for an emergency-power engine
09/02/1998CN1192298A Method and device for supplying electrical energy, and apparatus provided with such a device
09/01/1998US5801937 Uninterruptible power supplies having cooled components
09/01/1998US5801931 DC power source apparatus that suppresses harmonics
09/01/1998US5801513 Apparatus for charging batteries and supplying backup power
09/01/1998US5801457 Unit for maintaining information regarding the state of a device during battery power
08/1998
08/26/1998EP0860889A1 System using secondary cells
08/26/1998EP0859714A1 Method and device for controlling a motor vehicle drive train
08/26/1998CN1191639A Direct voltage back-up system at power supply outlet
08/25/1998US5798961 Non-volatile memory module
08/25/1998US5798633 Battery energy storage power conditioning system
08/19/1998EP0858634A1 An apparatus and method for reducing power consumption through both voltage and frequency scaling
08/18/1998US5796566 Printed circuit board having conductors which can be decoupled for isolating inactive integrated circuits connected thereto
08/18/1998US5796239 Battery pack having a processor controlled battery operating system
08/18/1998US5796182 Capacator storage circuit for sustaining a DC converter
08/18/1998US5796175 Power supply control device for electric vehicle
08/18/1998CA2146773C Charge regulator for electronic device and associated method
08/13/1998WO1998021914A3 Power supply system for a load, and use
08/12/1998EP0857369A2 Direct voltage back-up system at a power supply outlet
08/12/1998CN1190161A Power changing system for two-way changing between hydraulic energy and electric energy
08/11/1998US5794055 Automotive electrical system and method for coupling power to such systems
08/11/1998US5793627 Uninterruptible power supply system with removable front panel display and control module
08/11/1998US5793124 Uninterruptible power supply control system equipped with timer mechanism
08/11/1998US5793123 Electronic device with two power supply modes
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