| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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| 05/30/2000 | US6069412 Power factor corrected UPS with improved connection of battery to neutral |
| 05/24/2000 | CN1254216A Temperature control switch controlled holding charging circuit applicable to wide voltage change range |
| 05/24/2000 | CN1254215A Uninterruption power source |
| 05/23/2000 | US6067482 Load shifting control system for commercial refrigeration |
| 05/23/2000 | US6067240 Electric power distribution system with battery backup |
| 05/23/2000 | US6066937 Quick start unit |
| 05/23/2000 | US6066899 Resetable battery drain limitation circuit with complementary dual voltage setpoints |
| 05/23/2000 | CA2122307C Constant voltage circuit and a stabilized power supply unit |
| 05/18/2000 | DE19901727A1 Changeover device for current supply unit, has control circuit which responds to error signals and controls switches so that switch assigned to error signal is opened |
| 05/17/2000 | EP1001671A2 Device for uninterruptible power supply |
| 05/16/2000 | US6064125 Uninterruptible power supply unit |
| 05/16/2000 | CA2199214C External power source to main battery power source switch |
| 05/11/2000 | WO2000027013A1 Emergency light element for actuating fluorescent lamps in case of mains breakdown |
| 05/11/2000 | DE19853892C1 Electronic scale includes a clock component which terminates sleep mode and switches to normal- or stand-by mode at end of predetermined period of time or to predetermined time of day |
| 05/10/2000 | EP0904621A4 Modular power management system and method |
| 05/03/2000 | EP0910884A4 Method and apparatus for control of power supply couplings on computer backplane |
| 05/02/2000 | US6058019 Electronic circuit card assembly having confined ground path return |
| 05/02/2000 | US6057609 Auxiliary power supply apparatus |
| 05/02/2000 | US6056076 Control system for an automotive vehicle having at least one electrically operated door lock |
| 04/27/2000 | WO2000024231A1 Ballast circuit with independent lamp control |
| 04/27/2000 | CA2346840A1 Ballast circuit with independent lamp control |
| 04/26/2000 | EP0857369B1 Direct voltage back-up system at a power supply outlet |
| 04/26/2000 | CN2376121Y Temperature control switch controlled holding charging circuit for wide voltage changing range |
| 04/20/2000 | DE19852125C1 Back-up current supply for electrical load has electrical coils contained within cooling fluid bath and second cooling fluid passed between heat exchange surfaces for cooling fluid bath and power semiconductors |
| 04/20/2000 | DE19843147C1 Controlling uninterruptable power supply for data processing system |
| 04/18/2000 | US6052291 AC adaptor with power consumption reduction in unused state for a battery-operated electronic apparatus |
| 04/18/2000 | US6051893 Electric power supply system for load |
| 04/13/2000 | WO2000021180A1 Uninterruptible power supply systems, voltage regulators and operating methods employing controlled ferroresonant transformer circuits |
| 04/13/2000 | DE19844454A1 Buffer circuit for connection between control port of microprocessor and actuator in a motor vehicle includes control stage and drive stage with control signal determined by voltage at terminal connection and control terminal |
| 04/12/2000 | CN1250315A Power circuit for electrical equipment |
| 04/11/2000 | US6049190 Spacecraft power system |
| 04/11/2000 | US6049178 Circuit for controlling operation of an emergency exit lamp |
| 04/06/2000 | WO2000019581A1 Signal processing apparatus having means for reducing the power consumption |
| 04/06/2000 | WO2000019576A1 System for supplying power to a load connected to a distribution network |
| 04/05/2000 | CN1051173C Electronic apparatus including battery arrangement and discharging arrangement |
| 04/04/2000 | US6047038 System for, and method of, regulating the amount of power provided by battery in a processing apparatus |
| 04/04/2000 | US6046512 Connection of a voltage regulator in a motor vehicle power supply network |
| 04/04/2000 | US6045274 Power supply apparatus |
| 04/04/2000 | US6045232 Apparatus for providing emergency and night lighting |
| 03/29/2000 | EP0888659A4 Customer side power management system and method |
| 03/28/2000 | US6044280 Arrangement in which a useful signal is transmitted between at least two device units |
| 03/28/2000 | US6043994 Power supply having a transformer for standby mode operation |
| 03/28/2000 | US6043630 Fast battery charging system and method |
| 03/28/2000 | CA2226822C Emergency lighting system |
| 03/23/2000 | WO2000016461A1 Electric power supply system for an electrical equipment |
| 03/22/2000 | CN1248352A Battery charger with low standby current |
| 03/22/2000 | CN1248089A Power circuit for use in electric equipment |
| 03/21/2000 | US6040640 Direct voltage back-up system at a power supply outlet |
| 03/16/2000 | WO2000014850A1 Power saving circuit |
| 03/16/2000 | WO2000013942A1 Control device for an operating function of a vehicle |
| 03/15/2000 | EP0986255A1 Power supply circuit for electric device |
| 03/15/2000 | EP0985261A1 Power pack |
| 03/14/2000 | US6038118 Lightning protector system |
| 03/14/2000 | US6037748 Method and apparatus for control of an electronic system using intelligent movement detection |
| 03/09/2000 | WO2000013289A2 Emergency operation device for a facility with an electric motor |
| 03/09/2000 | DE19844750C1 Power supply arrangement |
| 03/08/2000 | EP0984133A1 Actuation module |
| 03/08/2000 | EP0984130A2 Automaticdoor driving mechanism |
| 03/08/2000 | CN1246737A Electronic device containing device for charging for batter device |
| 03/07/2000 | US6034508 Battery life extending power-switching device for all-time operational system |
| 03/07/2000 | US6034492 Motor-generator |
| 03/07/2000 | US6034445 Power source transfer lockout circuit |
| 03/07/2000 | US6034443 Method and device for supplying electrical energy, and apparatus provided with such a device |
| 03/03/2000 | CA2280208A1 Actuation module |
| 03/02/2000 | DE19838662A1 Kommunikationsgerät mit Notfallbatterie sowie Verfahren zum Einrichten desselben The same communication device with emergency battery and method for establishing |
| 03/01/2000 | EP0982833A2 Communication device with emergency battery including a method for arranging same |
| 03/01/2000 | EP0981852A1 Methods and apparatus for providing protection to batteries in an uninterruptible power supply |
| 03/01/2000 | CN1246216A Hybrid generator apparatus |
| 02/29/2000 | CA2124885C Alternative power supply apparatus |
| 02/24/2000 | WO2000010241A1 Generator system with vertically shafted engine |
| 02/23/2000 | EP0981195A2 Control arrangement for aperture closures |
| 02/22/2000 | US6028414 Fuel cell stand-by energy supply system |
| 02/19/2000 | CA2242497A1 Method and apparatus for the continuous performance monitoring of a lead acid battery system |
| 02/17/2000 | WO2000008735A1 Uninterruptible power system |
| 02/17/2000 | DE19935754A1 Method of controlling emergency power supply involves switching groups of loads off according to priority if energy drain tolerance exceeded until drain falls below tolerance |
| 02/17/2000 | DE19834329A1 Electrical system for a mains and backup supply for safety lighting has a monitoring system that detects a mains power supply failure and switches in the back up supply |
| 02/17/2000 | DE19834304A1 Electrical system for a mains and backup supply for safety lighting has a monitoring system that detects a mains power supply failure and switches in the back up supply |
| 02/16/2000 | EP0980131A2 Method and apparatus for monitoring of at least one switchable battery-set for the emergency supply of electrical and/or electronic consumers |
| 02/15/2000 | US6026000 Single transformer power supply with two separated inputs and multiple outputs |
| 02/15/2000 | CA2233640C Power management system |
| 02/10/2000 | WO2000007278A1 Auxiliary power unit using compressed air |
| 02/10/2000 | DE19834334A1 Electrical system for a mains and backup supply for safety lighting has a monitoring system that detects a mains power supply failure and switches in the back up supply |
| 02/10/2000 | CA2338158A1 Auxiliary power unit using compressed air |
| 02/09/2000 | EP0978924A2 Electrical installation for mains and stand-by power supply of safety lights |
| 02/09/2000 | EP0978920A1 Power supply system |
| 02/09/2000 | CN2363414Y Automatic power source for electric rolling door and illumination lamp |
| 02/08/2000 | US6023147 Hand held computerized data collection terminal with rechargeable battery pack sensor and battery power conservation |
| 02/03/2000 | WO1999048193A3 Uninterruptible power supply |
| 02/02/2000 | EP0647366B1 Capacitive energy source for damper and actuator motors |
| 02/01/2000 | US6021052 DC/AC power converter |
| 02/01/2000 | US6020657 Power supply for providing instantaneous energy during utility power outages |
| 02/01/2000 | CA2149845C Cogeneration power system |
| 01/26/2000 | EP0975081A2 A power supply circuit and a disk drive device provided with same |
| 01/26/2000 | CN2361024Y Bus connection self-throwing controller |
| 01/19/2000 | EP0972330A1 Flywheel power supply |
| 01/19/2000 | CN1241830A Uninterrupted power supply device |
| 01/18/2000 | US6016045 Real-time clock back-up battery |
| 01/18/2000 | US6016017 System for providing an uninterrupted supply voltage and method |
| 01/12/2000 | EP0885476A4 Integrated voltage regulating circuit useful in high voltage electronic encoders |
| 01/11/2000 | US6014319 Multi-part concurrently maintainable electronic circuit card assembly |