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 1 - Circuit arrangements for dc mains or dc distribution networks
Patents for H02J 1 - Circuit arrangements for dc mains or dc distribution networks (12,155)
08/1991
08/07/1991EP0440525A1 Control device for electric power supply of several electric apparatuses from DC-source
07/1991
07/31/1991CN1053523A Automatic and interactive power controller for audio/video systems
07/30/1991US5036452 Current sharing control with limited output voltage range for paralleled power converters
07/30/1991US5036449 Power supply and method for producing high voltage high power outputs in response to variable voltage DC inputs
07/24/1991EP0437833A2 Automatic and interactive power controller for audio/video systems
07/16/1991US5032971 Power sypply system for converting an A.C. power supply voltage into D.C. power supply voltage
07/16/1991CA1286359C Control apparatus for ac-dc converter
07/09/1991CA1285988C Switching power source device
07/03/1991EP0435538A2 Method and apparatus for electronic article surveillance
07/03/1991EP0435460A2 Current sharing control for paralleled power converters
07/03/1991EP0435371A2 Power supply device with non-symmetric monitoring
07/02/1991US5029062 Electrical regulation and energy transfer circuit
07/02/1991CA1285645C Relay circuit having a pulse generator for closing contacts
06/1991
06/27/1991WO1991010251A1 Dual current sensing driver circuit
06/27/1991CA2042389A1 Dual current sensing driver circuit
06/26/1991EP0433965A1 Household appliance or the like
06/26/1991EP0433400A1 Light-energized electronics energy management system.
06/26/1991EP0433281A1 Voltage transformer for charging energy stores
06/25/1991US5027106 Method and apparatus for electronic article surveillance
06/19/1991EP0432754A2 Circuit arrangement of a power supply
06/19/1991CN1052398A Electrical energy storage system
06/18/1991CA1285020C Direct current power supply with an emergency supply activated by a polarity reversal
06/13/1991WO1991008605A1 Device for charging electrical energy storage means provided with means for controlling said charging
05/1991
05/23/1991WO1991007799A1 System for protecting a dc power distribution bus during hot servicing
05/02/1991EP0425169A2 Electrical energy storage system
04/1991
04/28/1991CA2028388A1 Electrical energy storage system
04/16/1991CA1283165C Method for reducing dynamic overvoltages in an alternating-currentsystem
04/03/1991EP0419993A2 Parallel circuit module
03/1991
03/26/1991CA1282010C Inductive coupled power system
03/14/1991DE3936638C1 Ensuring electrical power supply in motor vehicle - grouping electrical appliances according to their importance for safety of vehicle
03/13/1991EP0416510A2 DC power supply circuit arrangement
03/13/1991CN1049938A 电源装置 Power supply unit
03/12/1991US4999524 Solar array power simulator
03/12/1991US4999516 Combined bias supply power shut-off circuit
02/1991
02/19/1991US4994953 DC power supply for high power applications
02/12/1991US4992723 For a circuit breaker
01/1991
01/30/1991EP0410559A2 Power supply device
01/18/1991WO1991001594A1 Combined bias supply and power shut-off circuit
01/18/1991CA2064085A1 Combined bias supply and power shut-off circuit
01/16/1991EP0407525A1 Safety device to prevent excessive battery drain.
01/02/1991CN1011110B Emergency d.c. power supply with emergency state being indicated by polarity reversal
01/01/1991US4982443 Instantaneous voltage drop detector for DC power source
12/1990
12/20/1990WO1990016104A1 A system for discharging electrical power from a high-voltage direct current line
12/19/1990EP0402834A2 Circuit for monitoring the voltage of a selected DC power supply in a redundant power supply system
12/19/1990EP0402833A2 Circuit for monitoring the voltage of a selected DC power supply device in a redundant power supply system
12/05/1990EP0177373B1 Device to stop the running of programmes in the process of execution in a microprocessor prior to the cut-off of the power supply of the microprocessor
11/1990
11/22/1990EP0398691A2 Electrical power distribution system
11/20/1990US4972292 Inductor with centertap switching transistor for reduced radio frequency emissions
11/07/1990CN1010360B Control apparatus for ac-dc converter
10/1990
10/30/1990US4967309 Dual current sensing driver circuit
10/19/1990WO1990013177A1 Circuits with switching protection and parts therefor
10/19/1990CA2051668A1 Circuits with switching protection and parts therefor
10/18/1990WO1990012352A1 Fault-powered power supply
10/17/1990EP0392419A1 Regulation device for one electrical parameter during energy transfer between two networks
10/16/1990US4964026 Noise reduction technique for PWM controllers
10/14/1990CA2014381A1 Device for regulating an electrical parameter during energy transfers between two networks
09/1990
09/30/1990CA2012020A1 Fault-powered power supply
08/1990
08/09/1990WO1990009050A1 Power supply system
07/1990
07/17/1990CA1271810A1 Shutdown control means for an electric power supply
07/12/1990WO1990007797A1 A self-sustaining power module
06/1990
06/28/1990WO1990007216A1 Adaptive electrical power management system
06/19/1990US4935928 DC supply for an S-bus in ISDN
06/19/1990CA2005101A1 Adaptive electrical power management system
06/14/1990WO1990006614A1 Safety device to prevent excessive battery drain
05/1990
05/23/1990EP0369635A2 Power supplies
05/16/1990CN1008037B Inverse current transformer system common to a.c. and d.c inputs
05/15/1990US4926302 Switching power source device
05/08/1990US4924170 Current sharing modular power supply
05/03/1990WO1990004871A1 Light-energized electronics energy management system
04/1990
04/17/1990US4918649 Method for generating instructions for inhibition switch-off of power after power-off operation
04/04/1990CA2000140A1 Light-energized electronics energy management system
03/1990
03/27/1990US4912621 Current-balance switching regulator
03/08/1990WO1990002441A1 Regulated transformer rectifier unit
03/08/1990WO1990002440A1 Voltage transformer for charging energy stores
03/06/1990US4907122 Relay circuit having a pulse generator for closing contacts
02/1990
02/20/1990US4902956 Safety device to prevent excessive battery drain
02/14/1990CN1039665A Bidirectional dc power controller with fault protection
02/13/1990US4901243 Timer controlled power supply system for a data terminal
01/1990
01/25/1990DE3834867C1 Circuit arrangement for the parallel connection of power supply devices
01/10/1990EP0350299A2 Bi-directional DC power controller with fault protection
12/1989
12/27/1989EP0267189B1 Monitoring circuit for control means and selective breakaway means in modular supply systems
12/19/1989US4888674 Method and apparatus for decoupling the active and reactive power control for a high voltage DC transmission line coupling two networks
12/12/1989US4887200 Method and apparatus for determining the actual value of the margin-angle in the valves of an inverter
12/12/1989US4886981 Synchronizing circuit for a plurality of power units
11/1989
11/08/1989EP0340292A1 Power supply system for segmented loads
10/1989
10/31/1989US4877972 Fault tolerant modular power supply system
09/1989
09/26/1989CA1261957A1 Redundant power supply system
09/26/1989CA1261455A1 Remote control circuit breaker
09/19/1989US4868461 Thyristor triggering device
09/12/1989US4866591 Regulated transformer rectifier unit
09/06/1989EP0284604B1 Synchronizing circuit for a plurality of power units
08/1989
08/30/1989EP0330274A1 DC supply for an S-bus in ASDN
08/22/1989US4860188 Redundant power supply control
07/1989
07/18/1989US4849663 Switchable smoothing network
07/05/1989EP0323221A2 Instantaneous voltage drop detector for DC power source
07/04/1989CA1256939A1 Battery economising circuit
06/1989
06/28/1989EP0321823A1 Method and device for disconnecting the active and reactive power supply of a two-network high-voltage direct-current power transmission link
06/20/1989US4841161 Monitoring circuit for control means and selective breakaway means in modular supply systems
06/15/1989DE3740612A1 Arrangement for synchronisation of the switching and blocking phases of two pulsed DC/DC voltage converters
05/1989
05/30/1989US4835652 Bi-directional DC power controller with fault protection
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