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)
12/1994
12/27/1994	US5377094 Push-pull output stage for driving motors which generates auxiliary voltage supply
12/27/1994	US5376828 Shunt connected superconducting energy stabilizing system
12/15/1994	DE4419389A1 Constant uninterrupted lighting of model railway vehicles
12/14/1994	CN2185484Y Full-automatic power converter
12/13/1994	US5373198 Uninterrupted electric feed system with unlimited autonomy without electric accumulators
12/13/1994	US5373196 Combination static/dynamic inverter
12/08/1994	DE4417924A1 Interface for interruption-free power supply
12/06/1994	US5371666 Average current mode control apparatus for an AC output amplifier
12/06/1994	US5371456 Power supply and battery charging system
11/1994
11/29/1994	US5369561 Standby power supply system having a variable frequency inverter
11/24/1994	DE4317002A1 Optional drive of an electric hand drill using a battery-powered d.c. motor or a mains-powered electric motor
11/17/1994	EP0624944A2 Electronic apparatus having a pluralty of drive sources and a drive controller thereof
11/15/1994	US5365453 System for indicating a low battery condition
11/15/1994	US5365145 Emergency lighting system
11/09/1994	EP0623987A1 Battery charger
11/09/1994	EP0623986A1 Battery charger
11/09/1994	EP0623985A1 Power Sharing detector
11/09/1994	CN2182509Y AC and battery two-purpose fluorescent lamp
11/09/1994	CN2182327Y Multi-function charge emergency lamp
11/08/1994	US5363031 Fast battery charger
11/08/1994	US5363030 Battery having a transistor switch for supplying energy
11/04/1994	CA2095371A1 Sasb/aoss (stand-alone static bypass)(add-on static switch)
11/03/1994	DE4414943A1 Battery supply device
11/02/1994	EP0622883A2 Communication apparatus and power supply device therefor
11/02/1994	EP0622882A1 Method and device to control the voltage of a decoupling diode between an intermediate circuit and battery in a power supply with buffer battery
10/1994
10/27/1994	DE4414062A1 System for using residual power in batteries and objects e.g. instant image cameras
10/25/1994	US5359180 Power supply system for arcjet thrusters
10/13/1994	WO1994023482A1 Power factor corrected ups with improved connection of battery to neutral
10/12/1994	CN1093500A Polyvalent power system
10/11/1994	US5355075 Rotating telecommunications power supply
10/05/1994	EP0617857A1 Power supply installation for an uninterruptible power supply to the load from the mains.
10/05/1994	CN2178978Y Automatic changing fluorescent lamp with ac./dc. two-purpose
09/1994
09/27/1994	US5350951 Voltage change circuit for a microcomputer
09/21/1994	EP0616409A2 Portable electrical power supply
09/21/1994	EP0615667A1 Arrangement for the off-mains switching of control devices.
09/21/1994	CN2177872Y Multifunctional emergency safety lamp
09/21/1994	CN2177871Y Emergent lighting lamp
09/20/1994	US5349497 Detachable handle structures for terminals
09/15/1994	WO1994021030A1 Process for preventing damage to numerically controlled machines in the event of a power failure
09/13/1994	US5347164 Uninterruptible power supply having a 115V or 230V selectable AC output and power saving
09/13/1994	US5347163 Power supply backup device for use in portable electronic apparatus
09/07/1994	EP0521901B1 Device for supplying uninterrupted power
08/1994
08/30/1994	US5343436 Electronic apparatus having backup power source
08/30/1994	US5343079 Standby power supply with load-current harmonics neutralizer
08/23/1994	US5341285 Intelligent transformerless system for transferring energy from a power source to an isolated load
08/23/1994	US5341279 Switching power supply circuit providing reduced power loss upon termination of operation of a starting power supply circuit
08/23/1994	US5341034 Backup battery power controller having channel regions of transistors being biased by power supply or battery
08/18/1994	WO1994018739A1 An emergency power system
08/17/1994	EP0610463A1 Power supply with a battery disconnect
08/17/1994	CN2174830Y Intelligent controlling device for power cut and lighting
08/10/1994	EP0610133A1 Apparatus incorporating an inverter, in particular for mini- or micro-computing
08/10/1994	CN1025645C A.C. electrical power supply installation with back-up power supply
08/09/1994	US5336977 Emergency lighting device
08/04/1994	DE4240778C1 Hidden sensor e.g. for monitoring flange of pipe, door frame, transported container, disturbance analysis or reaction monitoring
08/04/1994	CA2114860A1 Undulator, in particular for micro or mini data processing
08/03/1994	EP0608787A2 Polyvalent power system
08/03/1994	EP0478564B1 Safety device for vehicle passengers
08/02/1994	US5334877 Standby power supply with load-current harmonics neutralizer
07/1994
07/27/1994	EP0525133A4 Fail-safe uninterruptible lighting system
07/26/1994	US5332958 Battery disconnect device
07/26/1994	US5332927 Power supply system for a telecommunication system
07/26/1994	CA1331051C Standby power supply
07/21/1994	DE4342327A1 Battery back=up maintaining continuity of supply to switched power unit
07/20/1994	EP0607041A2 Power supplies for portable electrical devices
07/20/1994	EP0607011A2 Control device for system interconnection inverter
07/19/1994	US5331269 Standby control for electromagnet
07/19/1994	US5331128 Apparatus for driving microwave oven using both A.C. and D.C. current
07/12/1994	US5328781 Battery storage mechanism for electronic device
07/06/1994	EP0605199A2 An emergency power supply unit without transformers
07/06/1994	EP0604540A1 Measuring process for obtaining a switching command in a rapid changeover device.
07/06/1994	CN2171054Y Dual-purpose lamp for power-off lighting and camp out
07/06/1994	CN1025396C AC electrical power supply installation comprising back-up power supply equipped with inverter operating in reversible mode
06/1994
06/30/1994	DE4244012A1 Workshop roof with controlled ventilation panel system
06/29/1994	EP0604044A1 Power supply loss sensor
06/28/1994	US5325260 AC power and control for electro-magnet lifts
06/28/1994	US5325062 Apparatus and method for detection of latent faults in redundant systems
06/28/1994	US5325034 Emergency power system for capacitor start motors
06/28/1994	US5325030 Voice coil motor driving circuit with retracting function
06/23/1994	WO1994014229A1 Automatic load current back regulation
06/23/1994	DE4343074A1 Interruption-free power supply for electronic circuits
06/23/1994	DE4242552A1 Emergency power supply circuit for semiconductor memories
06/15/1994	EP0601333A1 Device for automatically switching off a car radio
06/14/1994	US5321389 Battery charge monitor
06/09/1994	WO1994013057A1 Power converter circuit
06/07/1994	US5319536 Power system for parallel operation of AC/DC convertrs
06/07/1994	US5319249 Power conversion system modification to permit use of DC power source
06/07/1994	US5318142 Hybrid drive system
06/01/1994	EP0599814A2 Power supply system
05/1994
05/31/1994	US5317500 Active no-break power transfer control for a VSCF power generating system
05/31/1994	US5317249 Transmit mode detector in a battery charger
05/26/1994	DE4239500A1 Secondary power supply for in-car audio equipment - has capacitor pack across battery with discharge resistor and short circuiting switch, controlled by state of charge
05/24/1994	US5315533 AC line fault detection apparatus
05/24/1994	US5315161 Power failure detection and shut down timer
05/18/1994	CN1024614C Power supply device
05/11/1994	CN1024456C Elevator operating device for power break-off
05/10/1994	US5311062 Transient-free synchronous electrical power machine
05/05/1994	DE4237835A1 Interruptable power supply (UPS) - is suitable for 19 inch cabinet racks and can be cascaded with other units
05/04/1994	EP0595327A2 Battery detecting device for a radio pager
05/04/1994	EP0594972A2 Battery back-up control circuit for battery backed up rack mounted devices
05/04/1994	CN2164069Y Intelligent non-intermittent power supply

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