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)
06/1983
06/15/1983EP0020725B1 Phase control arrangement to limit output signal transients during power source substitution in an uninterruptible power supply
06/14/1983US4388615 Testing emergency battery equipment
06/14/1983US4388534 Uninterruptible power supply
06/07/1983US4387305 Emergency power system for electromagnets
06/01/1983EP0080024A1 Emergency power supply for a bicycle lighting system
05/1983
05/25/1983EP0079462A2 Fluorescent lamp safety lighting
05/17/1983US4384350 MOS Battery backup controller for microcomputer random access memory
05/17/1983US4384214 Non-interrupting power supplies for loads of less than 500 watts
05/17/1983US4384213 Automatic transfer control device
05/03/1983US4382221 Battery charger for a backup power circuit
05/03/1983CA1145815A1 Automatic switching device for two batteries parallel charged and series discharged
04/1983
04/27/1983EP0077531A1 Charging device for a group of batteries, especially of buffer batteries fed by a limited power supply
04/26/1983US4381458 Back-up electrical power supplies
04/26/1983US4381457 Method and apparatus for preventing loss of data from volatile memory
04/14/1983WO1983001351A1 Voltage regulation and battery dissipation limiter circuit
04/05/1983US4379325 System for bridging brief network failures
04/05/1983CA1144233A1 Storage battery-type emergency power source
03/1983
03/23/1983EP0074910A1 Methods and devices for the AC electric supply of a load without interruption of the AC signal
03/15/1983US4376471 Emergency apparatus for elevator
02/1983
02/22/1983CA1141821A1 Device for protection in the case of d.c. supply-voltage drop
02/01/1983US4371820 Rotary line transfer switch
01/1983
01/19/1983EP0069964A1 Device for power distribution
01/14/1983EP0058720A4 Stand-by energy source, in particular an electrical supply source.
01/12/1983EP0069568A2 Motor-generator system providing prolonged uninterrupted power supply to a load
01/12/1983EP0069567A2 Greatly prolonged period non-interruptible power supply system
01/11/1983CA1139367A1 Control for an electrical generating and distribution system, and method of operation
12/1982
12/28/1982US4366433 Output voltage-drop detecting apparatus technical field
12/28/1982US4366390 Emergency power unit
12/28/1982US4366389 Continuously operating standby A-C power system
12/28/1982CA1138564A2 Automatic transfer control device
12/07/1982US4362951 Cycle charge standby power system
11/1982
11/10/1982EP0064085A1 Control circuit for a device to commute from one alternating voltage to another
10/1982
10/26/1982US4356543 Overcurrent-protected inverter
10/26/1982US4356403 Masterless power supply arrangement
10/26/1982US4356402 Engine generator power supply system
10/26/1982CA1134431A1 Battery charger control
10/13/1982EP0062601A1 Circuit arrangement for ensuring the operating voltage supply of an electronic unit
10/12/1982US4354118 Battery backup supply control means and method
09/1982
09/22/1982EP0060512A1 Emergency supply circuit for a user supplied by a generator
09/14/1982CA1131699A1 Voltage control circuit for uninterruptible power supply
09/01/1982EP0059089A1 Power supply apparatus
09/01/1982EP0058720A1 Stand-by energy source, in particular an electrical supply source.
08/1982
08/25/1982EP0058202A1 Power suplly circuit for electronic safety ski bindings.
08/24/1982US4346422 Power-distribution network for telecommunication system
08/24/1982US4346336 Battery control system
08/04/1982EP0056910A1 Assemblies for generating no-break constant-frequency AC electric power
08/03/1982US4342922 AC Fail-detect and battery switchover circuit for multi-bus power supply
08/03/1982CA1128997A1 Circuit control to limit power drain of auxiliary power supply
07/1982
07/27/1982CA1128639A1 "ready" indicator for high-voltage switchgear
07/20/1982US4340973 Selective calling receiver including a voltage converter with low power consumption
07/20/1982US4340823 Uninterruptible power supply
07/13/1982US4339779 Apparatus for preventing damage by voltage interruption
07/06/1982CA1127235A1 Electrical power supplying equipment for vehicles
06/1982
06/15/1982US4335434 Electronically controlled franking machine
05/1982
05/25/1982CA1124365A1 Electronically controlled franking machine
05/18/1982CA1123940A1 Automatic transfer control device
05/12/1982EP0051533A2 MOS battery backup controller for microcomputer random access memory
05/04/1982US4328429 Method and apparatus for controlling inverters in parallel operation
05/04/1982CA1123044A1 Emergency lighting fluorescent pack
04/1982
04/27/1982US4327410 Processor auto-recovery system
04/27/1982US4327298 Battery backup system for a microcomputer
04/14/1982EP0049462A2 Memory device
04/07/1982EP0049235A1 Method of detecting disturbances of an AC electrical voltage causing the switching of the user to another current source
04/06/1982US4323987 Power failure memory support system
04/06/1982US4323820 Emergency lighting system
04/06/1982US4323788 D-C Power supply for providing non-interruptible d-c voltage
03/1982
03/30/1982US4322634 Device for protection in the case of d.c. supply-voltage drop
03/18/1982WO1982000927A1 Stand-by energy source,in particular an electrical supply source
03/18/1982WO1982000801A1 Drive system for machines being driven from more than one energy sources,in particular for vehicles
03/16/1982CA1120101A1 Non-interruptible power supply systems
03/16/1982CA1120094A1 Emergency light system
03/04/1982WO1982000594A1 Power supply circuit for electronic safety ski bindings
02/1982
02/16/1982US4316097 Backup power circuit
02/10/1982EP0045468A1 Device for bridging short-time network failures in voltage converters with an intermediate link
02/09/1982US4315163 Multipower electrical system for supplying electrical energy to a house or the like
02/09/1982US4315162 Reserve power supply for computers
01/1982
01/26/1982US4313180 Refresh system for a dynamic memory
01/26/1982US4313060 Uninterruptible power supply with load regulation of standby voltage source
01/19/1982US4311920 Emergency power source
01/19/1982US4311919 Transfer logic control circuitry
01/05/1982US4309623 Power source device for electronic counting system
12/1981
12/15/1981CA1114487A1 Control panel for automatic transfer switch
10/1981
10/27/1981US4297629 Automatic switching arrangement for two batteries which are charged in parallel and discharged in series
10/27/1981US4297614 Emergency lighting system
10/27/1981CA1111538A1 Transfer apparatus for energy sources in railway track circuits
10/13/1981US4295054 Electric control system with rotary mechanical interlock and timing mechanism
10/13/1981US4295053 Electric control system with mechanical interlock
09/1981
09/16/1981EP0035727A1 Power supply system for electronic assemblies
08/1981
08/25/1981US4286204 Device for controlling the charging of a storage battery
08/18/1981US4285023 Rectifier system with failure alarm circuitry
07/1981
07/28/1981US4281376 Protected converter arrangement
07/28/1981US4281278 Redundant battery protection system
07/28/1981CA1105999A1 Arrangement for monitoring a current network
07/14/1981US4278971 Electric control circuit for safety apparatus in automotive vehicles
07/07/1981US4277728 Power supply for a high intensity discharge or fluorescent lamp
07/07/1981US4277692 Continuous power source with bi-directional converter
07/01/1981EP0030980A1 Stabilized dc power source
06/1981
06/10/1981EP0030154A1 Testing emergency battery equipment
05/1981
05/26/1981US4270156 Electronic synchronization monitor
05/13/1981EP0028591A1 Method of uninterrupted operation of a current supply installation and apparatus for the method
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