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)
08/2012
08/28/2012US8252724 Fault current limiter with a plurality of superconducting elements having insulated, electrically conducting substrates
08/27/2012DE202011050264U1 Vorrichtung zur induktiven Übertragung elektrischer Energie Device for inductive transmission of electrical energy
08/23/2012WO2012112991A1 Technique for limiting fault current transmission
08/23/2012WO2012110417A1 Electronic device and protection element therefor, for use in potentially explosive areas
08/23/2012WO2012079570A3 Circuit for protecting an electric load from overvoltages
08/23/2012WO2012025088A3 Protective circuit
08/23/2012US20120215943 Input buffer protection
08/23/2012US20120213504 Method and apparatus for light emitting diode control
08/23/2012US20120212869 Integrated circuit
08/23/2012US20120212868 Integrated circuit
08/23/2012US20120212867 Data port transient protection apparatus and methods
08/23/2012US20120212866 Output driver
08/23/2012US20120212865 Esd block isolation by rf choke
08/23/2012US20120212862 Method and device for limiting secondary arc current of extra-high voltage/ultra-high voltage double circuit lines on the same tower
08/23/2012US20120212861 Voltage spikes control for power converters
08/23/2012US20120212231 Switching device
08/23/2012DE202012006940U1 Überstromschutzeinrichtung zum Schutz eines Überspannungsschutzelements Overcurrent protection device for protecting a surge absorbing element
08/23/2012DE102011001977B3 Zweistufige Abschaltvorrichtung für einen Varistor Two-stage cut-off device for a varistor
08/22/2012EP2489240A1 Electronic driver apparatus for large area solid-state leds
08/22/2012CN202395441U Anti-lightning transformer
08/22/2012CN202395440U Sealing forced trigger gap
08/22/2012CN202395439U Uninterrupted power supply (UPS) over-voltage protection circuit
08/22/2012CN202395438U Safeguarding circuit for plug
08/22/2012CN202395437U TVS current peak protection circuit
08/22/2012CN202395436U Switching circuit for low-voltage direct current load box
08/22/2012CN202394974U Bidirectional SCR ESD protection circuit of lower trigger voltage
08/22/2012CN1998121B Surge protection method and surge suppression circuit
08/22/2012CN102648558A Component for limiting currents in electric circuits
08/22/2012CN102647894A Electromagnetic shielding device for signal line control circuit protector with power surge protector
08/22/2012CN102647020A Electric power extraction method and device applicable for power network distribution
08/22/2012CN102646992A Power grid fault isolating system for clean energy grid connection
08/22/2012CN102646974A Coaxial channel lightning protection device circuit
08/22/2012CN102646973A Distribution network electric shock protection method and device
08/22/2012CN102646972A Overvoltage protecting device for coal mine power center
08/22/2012CN102646971A Safe and reliable anti-surge technology and surge protection device
08/22/2012CN102646970A Power supply clamping circuit
08/22/2012CN102646969A Esd block isolation by RF choke
08/22/2012CN102646968A Reactor type short-circuit fault current limiter
08/22/2012CN102646902A Anti-high-pressure surging connector and circuit board using same
08/22/2012CN101916994B Large through-flow frequency division and current-distribution type separator
08/22/2012CN101346867B Circuit arrangement featuring explosion protection
08/21/2012US8248747 Protection for bi-directional switch
08/21/2012US8248742 Semiconductor device
08/21/2012US8248741 Apparatuses and methods for a SCR-based clamped electrostatic discharge protection device
08/21/2012US8248740 High speed current shunt
08/21/2012US8248192 Pulse activated magnetic trip/reset mechanism for a ground fault circuit interrupter
08/21/2012US8247354 Fault current limiter with a plurality of superconducting elements connected in a ring-shaped fashion
08/21/2012US8246770 Copper grid repair technique for lightning strike protection
08/21/2012CA2564928C Earthing and overvoltage protection arrangement
08/16/2012WO2012107586A1 Apparatus including two batteries connected in parallel
08/16/2012US20120206844 Voltage sensing circuitry for solid state power controllers
08/16/2012US20120206843 Method and apparatus for detection and control of dc arc faults
08/16/2012US20120206841 Power converter and method of operation
08/16/2012US20120206840 Thermal protection system for electrical device
08/16/2012DE102011003978A1 Circuit arrangement for line protection in electronic interface of e.g. notebook computer, has tap that is connected with ground line over voltage limiting device so that voltage of data line connected through tap is controlled
08/15/2012EP2487731A1 Composite with coated conductor
08/15/2012EP2486639A1 System and method for providing surge protecion
08/15/2012EP2486638A2 Method for the real time estimation temperature of a stator and a rotor in a rotating electrical machine
08/15/2012EP1941592B1 Fault current limiters (fcl) with the cores saturated by superconducting coils
08/15/2012EP1817838B1 Device and method for charging an electrical energy accumulator device
08/15/2012CN202385353U Mining illumination comprehensive projection device with solid-state relay
08/15/2012CN202385327U Alternating current multi-section voltage limiting short circuit protective LED illuminating lamp circuit
08/15/2012CN202384992U Anti-lightning strike circuit for small power switching power supply
08/15/2012CN202384991U Overvoltage protection circuit of switching power supply
08/15/2012CN202384828U Two-port power supply lightning protection device with automatic switching line
08/15/2012CN202384761U Spike voltage suppressing protection circuit for single-ended flyback light emitting diode (LED) constant current power supply
08/15/2012CN202384760U Surge inhibitor for broadband network
08/15/2012CN202384759U Circuit for suppressing surge current
08/15/2012CN202384758U Rapid protector for current input end of power analyzer
08/15/2012CN202384756U Silicon controlled heat radiation and protection integrated structure
08/15/2012CN202384743U System for research on magnetizing inrush current of single-phase transformer
08/15/2012CN102638114A Power supply device of current transformer
08/15/2012CN102638033A Integrated control system for arc suppression coil
08/15/2012CN102638032A Arc suppression coil device on basis of single-phase matrix converter
08/15/2012CN102638031A Arc suppression coil device
08/15/2012CN102638030A Voltage protection circuit based on resistive switching memristor and application thereof
08/15/2012CN102638029A Multifunctional power source lightning protection module based on common tin soldering tripping points
08/15/2012CN102637054A 50-ampere power consumption balanced-type high-power constant-current source
08/15/2012CN102074945B Surge protective device for communication cabinet
08/14/2012US8243410 Transient voltage compensation system and method
08/14/2012US8243409 Protective device and method for its operation
08/14/2012US8243406 ESD protection device and composite electronic component of the same
08/14/2012US8243403 Electrostatic discharge clamp circuit
08/14/2012CA2484161C A rechargeable power supply
08/09/2012WO2012105264A1 Power source switch device and power source system provided with same
08/09/2012WO2012103587A1 Fault current limiter with shield and adjacent cores
08/09/2012US20120200971 Fault Current Limiter with Shield and Adjacent Cores
08/09/2012US20120200965 Electronic component device and package substrate
08/09/2012US20120200964 Diode chain with guard-band
08/09/2012US20120200963 System and method for protecting a computing device using vsd material, and method for designing same
08/09/2012US20120200962 Esd clamp for multi-bonded pins
08/09/2012CA2826457A1 Fault current limiter with shield and adjacent cores
08/08/2012EP2484017A1 Protection device for radiocommunications apparatuses
08/08/2012EP2483984A2 Free-wheeling circuit
08/08/2012CN202374263U Lightning protection system used under co-site condition of 3rd-generation (3G) base station and 2nd-generation (2G) macro base station
08/08/2012CN202374172U Communication device based on advanced telecommunications computing architecture, and filter circuit
08/08/2012CN202373973U Surge suppression circuit
08/08/2012CN202373972U Control circuit for reliable management of regenerated energy
08/08/2012CN202373971U Surge protector for patch board
08/08/2012CN202373970U Variable-impedance autotransformer type fault current limiter
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