| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
|---|
| 09/01/1999 | EP0939477A1 Uninterrupted electric power supply system |
| 09/01/1999 | EP0939476A2 Device for central emergency lighting supply |
| 09/01/1999 | EP0939353A1 Auxiliary device for controlling at least one electrically controlled functional element |
| 09/01/1999 | EP0939352A1 Device for providing power to electrical valves |
| 09/01/1999 | EP0938812A1 Standby power supply for video display apparatus |
| 09/01/1999 | EP0938806A2 Power supply system for a load, and use |
| 09/01/1999 | CN2336509Y Automatic switching electric supply device for underground fan |
| 09/01/1999 | CN2336508Y Fluid controlled self-starting device for generating set |
| 08/31/1999 | US5945745 Activation control for an automotive electronic module |
| 08/31/1999 | CA2204218C Method and apparatus for operating led array and charging circuit for emergency led operation including dc boost circuit allowing series connection of led array and battery |
| 08/26/1999 | WO1999042331A1 Device for supplying electric energy |
| 08/25/1999 | EP0858634A4 An apparatus and method for reducing power consumption through both voltage and frequency scaling |
| 08/24/1999 | US5942885 Power compensating device for battery |
| 08/24/1999 | US5942811 Apparatus and method for extending the supply of reserved power during a line power interruption |
| 08/19/1999 | WO1999041821A1 Electric power supply system for simplifying the architecture of power and air conditioning installations |
| 08/18/1999 | EP0935836A2 Portable electronic device and method |
| 08/18/1999 | CN1226099A Uninterruptible power supply apparatus |
| 08/17/1999 | US5939990 Method of indicating operation of backup battery and circuit for sensing the same |
| 08/17/1999 | US5939862 Portable computer system |
| 08/17/1999 | US5939798 Hybrid energy storage system |
| 08/12/1999 | DE19904851A1 Uninterruptible power supply for supplying computers and other electronic data processing equipment |
| 08/12/1999 | DE19805160A1 Electronic circuit for maintaining electrical equipment ready using a capacitor |
| 08/11/1999 | EP0867062B1 No-break power supply |
| 08/11/1999 | CN1225754A Power pack |
| 08/10/1999 | US5936318 Power distribution arrangement especially in an aircraft |
| 08/05/1999 | WO1999017426A3 An electric power plant with electric machine and auxiliary power means |
| 08/03/1999 | US5933331 Battery coupling apparatus |
| 08/03/1999 | US5932933 Structure of power supply system |
| 07/28/1999 | EP0932237A2 Electric power distribution system |
| 07/28/1999 | EP0932236A1 DC current energy storing device |
| 07/28/1999 | CN1224558A Arrangement in which useful signal is transmitted between at least two device units |
| 07/26/1999 | CA2259865A1 Meter coupling |
| 07/21/1999 | EP0930690A2 Switched mode power supply |
| 07/21/1999 | EP0930200A1 Time delayed power supply device and operating method thereof |
| 07/15/1999 | WO1999023465A3 Power switching for marine seismic systems |
| 07/14/1999 | EP0928447A2 Method and arrangement for controlling functions in a programme-controlled circuit in the event of operating voltage failure |
| 07/14/1999 | EP0855098B1 Arrangement for ensuring uninterrupted current supply to an electrical consumer |
| 07/13/1999 | US5923099 Intelligent backup power controller |
| 07/08/1999 | WO1999034342A1 Method and apparatus for detecting and reporting a power outage |
| 07/07/1999 | EP0928055A1 Method for centralised telecontrol of a plurality of emergency lighting units and emergency lighting installation applying the method |
| 07/07/1999 | CN1221955A Fault tolerant voltage regulator module circuit for supplying core voltage and cache voltage to intel processor |
| 07/06/1999 | US5920129 Uninterruptible power supply having solid state transfer switch and method of operation thereof |
| 07/01/1999 | WO1999033296A1 A method, a device and a terminal for mobile radio communication |
| 07/01/1999 | DE19755737A1 Pufferschaltung und integrierte Speicherschaltung mit einer Pufferschaltung Buffer circuit and integrated memory circuit comprising a buffer circuit |
| 06/30/1999 | EP0925628A1 Methods and apparatus for providing startup power to a genset-backed uninterruptible power supply |
| 06/30/1999 | EP0777929A4 Fail-safe lighting system with load shedding and dimming |
| 06/29/1999 | US5917479 Method for reducing power consumption in a monitor |
| 06/29/1999 | US5917297 Arrangement and method for operating a magnetically suspended, electromotoric drive apparatus in the event of a mains disturbance |
| 06/29/1999 | US5917253 Live AC mains power selector for redundant systems |
| 06/29/1999 | US5917251 Method and circuit arrangement to cover peak energy demands in electrical alternating or three-phase current networks |
| 06/29/1999 | US5917175 Portable data capture terminal |
| 06/29/1999 | CA2256107A1 Electric power distribution system |
| 06/24/1999 | WO1999031860A1 Battery-backup mechanism for base unit of wireless telephone system |
| 06/24/1999 | WO1999031664A1 Buffer circuit and integrated-circuit memory with a buffer circuit |
| 06/23/1999 | EP0924836A2 Rapid disconnecter in semiconductor technology |
| 06/23/1999 | EP0924834A2 Power supply, in particular for a mobile phone in a motor vehicule |
| 06/23/1999 | CN1220567A Electronic circuit for portable electronic device |
| 06/22/1999 | US5915118 Apparatus and method for gradually shutting down a power supply |
| 06/22/1999 | US5914538 Communication apparatus and power supply device therefor |
| 06/22/1999 | US5914481 Portable data collection terminal with handwritten input area |
| 06/22/1999 | CA2256565A1 High-speed disconnector using semiconductor technology |
| 06/16/1999 | EP0923184A2 Outage management emergency power supply device |
| 06/15/1999 | US5912514 Uninterruptible power supply unit |
| 06/10/1999 | DE19855245A1 Redundant voltage supply for motor vehicle electrical load |
| 06/10/1999 | DE19751521A1 Integrated, portable meteorological station for solar collection system |
| 06/09/1999 | EP0920769A2 Arrangement in which a useful signal is transmitted between at least two device units |
| 06/08/1999 | US5910876 Printed circuit board having conductors which can be decoupled for isolating intactive integrated circuits connected thereto |
| 06/08/1999 | US5910689 For a fluorescent lamp in a lighting circuit |
| 06/03/1999 | WO1999027638A1 Frequency converter and ups employing the same |
| 06/03/1999 | WO1999027630A1 Charge circuits for ups |
| 06/03/1999 | CA2311584A1 Frequency converter and ups employing the same |
| 06/03/1999 | CA2311529A1 Charge circuits for ups |
| 06/02/1999 | EP0919077A2 High efficiency lighting system |
| 06/01/1999 | US5909360 Uninterruptible power supplies |
| 06/01/1999 | US5909062 Secondary power supply for use with handheld illumination devices |
| 05/27/1999 | WO1999026330A2 Universal power supply |
| 05/27/1999 | WO1999012245A3 Portable electronic device and method |
| 05/27/1999 | DE19752148A1 Power circuit breaker switch |
| 05/27/1999 | CA2317560A1 Universal power supply |
| 05/25/1999 | US5907238 Power source monitoring arrangement and method having low power consumption |
| 05/25/1999 | US5907192 Method and system for wind turbine braking |
| 05/20/1999 | WO1999017419A3 Fire extinguisher cabinet with emergency lighting |
| 05/19/1999 | CN1217096A Modular power management system and method |
| 05/18/1999 | US5905365 Real time-clock power supply device |
| 05/18/1999 | US5905313 Electrical system usable for car radio and CD changer |
| 05/14/1999 | WO1999023465A2 Power switching for marine seismic systems |
| 05/12/1999 | EP0914702A1 Power pack |
| 05/11/1999 | US5903765 Power management system for a computer |
| 05/11/1999 | US5903764 Smart battery selector offering power conversion internally within a portable device |
| 05/11/1999 | US5903065 Power failure transfer switching system |
| 05/04/1999 | US5901057 Uninterruptible power supply with fault tolerance in a high voltage environment |
| 04/28/1999 | EP0911989A2 A time-division radio that is powered by a low-power energy source |
| 04/28/1999 | EP0911942A2 Method and circuit arrangement for momentarily maintaining an output voltage by means of an autarky capacitor in case of failure of the input voltage |
| 04/28/1999 | EP0911740A2 Bus station and bus system |
| 04/28/1999 | EP0910884A1 Method and apparatus for control of power supply couplings on computer backplane |
| 04/28/1999 | CN2316760Y Operating supply unit for transformer substation |
| 04/27/1999 | US5898294 Control loop for pulse charging lithium ion cells |
| 04/27/1999 | US5898234 Power supply unit with simplified circuitry |
| 04/27/1999 | US5898162 Hand-held data capture system with interchangeable modules |
| 04/27/1999 | US5897194 Sign with remote power source tester |