Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232)
01/1996
01/11/1996WO1996001015A1 An apparatus for protecting a subscriber line interface circuit against overvoltages
01/11/1996WO1996001002A1 Circuit arrangement
01/11/1996CA2169640A1 An apparatus for protecting a subscriber line interface circuit against overvoltages
01/10/1996EP0691046A1 Arrangement for disconnecting branches of a low voltage supply network under short circuit conditions
01/09/1996US5483409 25-pair circuit protection assembly
01/09/1996US5483406 Overvoltage protection circuit
01/09/1996US5483142 Precharge circuit having microprocessor-based firing angle control circuitry
01/04/1996WO1996000458A1 Device for limiting the short-circuit current in a power-distribution network
01/04/1996DE4434819C1 Short-circuit overcurrent limiting device for electrical line
01/04/1996DE4422265A1 Vorrichtung zur Begrenzung eines Kurzschlußstromes in einem Netz A device for limiting a short-circuit current in a power
01/03/1996EP0690554A2 Redundant power mixing element with fault detection for DC-to-DC converter
01/03/1996EP0690539A2 Protection method for telecommunication equipment and circuit for carrying our the method
01/03/1996CN1114458A Terminal and a method of forming the same
12/1995
12/27/1995EP0689271A1 An earth leakage unit
12/27/1995EP0689261A1 Protection device against transient disturbances
12/27/1995EP0649563A4 Gas tube vent-safe device.
12/26/1995US5479086 Process and device for reducing the inrush current when powering aninductive load
12/20/1995EP0493579B1 Dual shunt current regulator
12/20/1995CN1113615A Power supplying circuit
12/14/1995DE4424725C1 Unloading circuit for power switch
12/13/1995EP0687051A1 Telephone line interface protection
12/13/1995EP0687021A1 High temperature superconducting current limiter
12/13/1995EP0686953A1 LED indicator with low operating voltage and high over-voltage tolerance
12/12/1995US5475560 Current limiting device with a superconductor and a control coil
12/08/1995CA2150638A1 Led indicator with low operating voltage and high over-voltage tolerance
12/07/1995WO1995033295A1 Circuit for limiting current
12/06/1995EP0685918A1 Power supply security device
12/06/1995EP0685917A1 Secure power supply
12/06/1995CN1030478C Low impedance, high voltage protection circuit
12/05/1995US5473500 Electrostatic discharge circuit for high speed, high voltage circuitry
12/05/1995US5473494 Electrical power supply system
12/01/1995CA2150509A1 Synchronization device for a secured supply system
11/1995
11/29/1995EP0684677A1 Overcurrent protective circuit and semiconductor device
11/29/1995CN1112741A Methods and apparatus for isolating a power network from a load during an overcurrent condition
11/28/1995US5471123 Control circuit for feedback, motor-operated valve
11/28/1995US5471035 Sandwich construction for current limiting positive temperature coefficient protective device
11/16/1995WO1995031030A1 Improved voltage polarity memory system and fuse-switch assembly usable therewith
11/15/1995EP0682395A2 Device for limiting the rate of change of currents and voltages between conductors or to earth and use thereof
11/15/1995CN2212849Y Electric power supply protector
11/08/1995EP0681365A1 Electrostatic destruction preventing circuit and receiving apparatus having the same
11/07/1995US5465190 Circuit and method for protecting power components against forward overvoltages
11/07/1995US5464564 Screen printing substrates with palladium and silver, glass frits, dopes, binders and vehicles
10/1995
10/31/1995USRE35077 Electrical transient surge protection
10/31/1995US5463520 Electrostatic discharge protection with hysteresis trigger circuit
10/25/1995EP0679009A2 Switching device with feeding circuit for providing the current to a subscriber terminal
10/25/1995EP0678961A1 Conductor interruption identifying and indicating circuit
10/25/1995CN2211132Y Thunder-proof protective switch-box
10/24/1995US5461533 Overvoltage protection device having a concave arc section
10/24/1995US5461290 for reducing friction in the opening of a closed valve
10/19/1995DE4412640A1 Limiter for inrush current to capacitive load
10/19/1995DE19513910A1 Intrinsically safe power supply
10/18/1995EP0677910A2 Overvoltage protection
10/12/1995WO1995027291A1 Choke coil with current-dependent inductance
10/12/1995DE19513615A1 Contact detector, load driver and dental spray with built-in illumination
10/11/1995EP0676845A1 Overvoltage protection system
10/05/1995WO1995026587A1 Electrostatic discharge protection circuits using biased and terminated pnp transistor chains
10/05/1995DE4411645A1 Drosselspule mit stromabhängiger Induktivität Inductor with inverse inductance
10/04/1995EP0675584A1 Power output stage with limited current absorption during high-impedance phase
10/04/1995CN2209399Y Power supply full-turn-off device for remote-controlled color TV
10/03/1995CA2056228C Protection structure for a surge absorber
09/1995
09/27/1995EP0639284A4 Low loss recirculation apparatus.
09/21/1995DE4441279C1 Current suppressor
09/20/1995EP0651921A4 Current limiters in power utility applications.
09/20/1995CN2208307Y Self protective and high reliable electronic energy saving lamp
09/20/1995CN1108820A Telephone line overvoltage protection apparatus
09/19/1995US5452171 Electrostatic discharge protection circuit for integrated circuits
09/19/1995US5451845 Device for protecting a ballast circuit from excess voltage
09/13/1995EP0671867A2 Circuit for operating a discharge lamp
09/13/1995EP0671799A2 Single-port network node transceiver with powered-down protection
09/12/1995US5450266 Superconducting fault current limiter
09/12/1995US5450001 Process and device for safeguarding an alternating current circuit having an electrical load associated therewith
09/08/1995WO1995024066A1 Current protection method and apparatus and current protected low dropout voltage circuits
09/07/1995DE4407117A1 Supply of DC consumers from rectifier though long lines
09/06/1995EP0590088B1 Ac voltage clipper in mos-technology
09/06/1995CN1108013A Circuit arrangement
09/05/1995US5448443 Power conditioning device and method
08/1995
08/30/1995EP0669049A1 Switching arrangement
08/24/1995DE4405444A1 Two-pole reversible DC electric motor for car doors
08/23/1995EP0668648A1 Semiconductor arrester
08/22/1995US5444610 High-power modulator
08/22/1995US5443664 Surge current-suppressing circuit and magnetic device therein
08/17/1995WO1995022188A1 Fault tolerant thermoelectric device circuit
08/17/1995DE19503315A1 Motor vehicle power supply system with discriminatory protection
08/16/1995EP0667666A1 Power supply comprising a ciruit for limiting inrush currents
08/16/1995EP0667053A1 Active power line conditioner with synchronous transformation control
08/16/1995EP0667050A1 Device for protection.
08/16/1995CN1029535C High energy dissipation harmonic reactor
08/10/1995WO1995021481A1 Coaxial transmission line surge arrestor
08/09/1995EP0666631A2 Field bus power supply system
08/09/1995EP0503064B1 Surge-absorbing device having a protective function against over-voltage and over-current
08/09/1995CN2205077Y Arc eliminator
08/08/1995US5440441 Apparatus for protecting, monitoring, and managing an AC/DC electrical line or a telecommunication line using a microprocessor
08/03/1995DE19502210A1 Current limiter unit for network currents
08/02/1995CN1106178A Electrical circuits having noise eliminating element
08/01/1995US5438619 Solid state primary telephone protector
08/01/1995CA2140605A1 Current limiter unit ampere rating module
07/1995
07/26/1995EP0664059A1 Protection circuit for electronic systems in general and for an electronic ballast operating discharge lamps in particular
07/25/1995US5436824 Inrush current limiter in a magnetic flowmeter
07/25/1995US5436787 Surge arrestor unit
07/25/1995US5436786 Isolator surge protector for DC isolation and AC grounding of cathodically protected systems
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