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)
11/2012
11/14/2012EP2523293A1 Circuit for protection against an overcurrent
11/14/2012EP2523292A1 A method and a system for protecting a power transformer against voltage surges while the circuit breaker is opening
11/14/2012CN202535100U Safety type solar energy charging and discharging control module
11/14/2012CN202535067U Neutral point package unit of 330kV-500kV transformer
11/14/2012CN202535066U Secondary protection circuit for Ethernet surge protection device
11/14/2012CN202535065U Comprehensive surge protector of monitoring system
11/14/2012CN202535064U Overvoltage protector with moistureproof performance
11/14/2012CN202535063U MOS tube grid electrode discharging circuit for main switch of switch power supply
11/14/2012CN202535062U System for grounding combination of neutral point and resistor via controllable reactance in electric power grid
11/14/2012CN202535061U Equivalent circuit of ZnO valve plate in ZnO lightning arrester
11/14/2012CN202535060U Six-phase lightning arrester with counter
11/14/2012CN202535059U Three-phase lightning arrester
11/14/2012CN202535058U Harmonic elimination protector for three-phase voltage transformer
11/14/2012CN202535057U Novel overvoltage protector
11/14/2012CN202535056U Intelligent power supply surge protector
11/14/2012CN202535055U Security surveillance camera and lightning protection module thereof
11/14/2012CN202535054U Protective circuit with BROWN OUT chip
11/14/2012CN202535053U Short-circuit protection circuit of wire break sensor
11/14/2012CN202535052U Neutral point grounding system via combination of reactance and resistor
11/14/2012CN202535051U Dynamic regulator
11/14/2012CN202535050U Combined type grounding system for reactance and resistor in power distribution network
11/14/2012CN202535049U Capacitance compensation switching switch structure
11/14/2012CN202535032U Novel intelligent electricity leakage comprehensive protector
11/14/2012CN202534120U Alarm used for voltage-stabilizing and current-limiting
11/14/2012CN102780218A Two-port lightning protection device for display screen and message board of highway
11/14/2012CN102780217A Surge protection device
11/14/2012CN102780216A Surge suppression power supply system and working method thereof
11/14/2012CN102780215A Mine low voltage power network capacitative current automatic compensation device
11/14/2012CN102780214A Ic providing ESD protection and ESD protection system
11/14/2012CN102780213A Protection circuit of LDO (low dropout regulator)
11/14/2012CN102780206A Electric leakage detection protecting circuit
11/14/2012CN102779818A Electrostatic protection circuit for radio-frequency identification tag
11/14/2012CN102779816A Electrostatic discharge protecting device
11/14/2012CN101917804B Large-power intelligent dimming multiple-output power supply for suppressing electric surge with field-effect transistor
11/14/2012CN101741074B Ship electricity fault current restrictor
11/14/2012CN101257212B Overvoltage protection for a coaxial connector
11/14/2012CN101034805B Ic power supply protection circuit
11/13/2012US8310850 Method and apparatus for varying current limit to limit an output power of a power supply
11/13/2012US8310797 Short circuit protection circuit, short circuit protection method and power supply device thereof
11/13/2012US8310796 Methods and systems for operating power converters
11/13/2012US8310795 Power factor correction type switching power supply unit
11/13/2012US8310793 Over-current protection for DC-to-DC converters
11/13/2012CA2505332C Thermal protection system for electrical appliance
11/08/2012WO2012150225A1 Method for controlling a current-interrupting device in a high-voltage electrical network
11/08/2012US20120281327 Self-adaptive surge-proof circuit
11/08/2012US20120281325 Limiting Circuit
11/08/2012US20120281324 Semiconductor device
11/08/2012US20120281323 Integrated circuit passive signal distribution
11/08/2012US20120281322 Electrostatic Discharge Protection
11/08/2012DE102011050420B3 Surge protection device for protection of electrical device against transient voltages, has temperature-dependent resistors arranged in series with current-controlled semiconductor components in a state thermally coupled to components
11/08/2012CA2833134A1 Method for controlling a current-interrupting device in a high-voltage electrical network
11/07/2012CN202524293U 28 V direct current solid power controller
11/07/2012CN202524080U Serial filtering and surge protection device for direct current
11/07/2012CN202524078U Arc suppression and overvoltage protection device controller
11/07/2012CN202524077U Combination type video lightning protection surge protective device
11/07/2012CN202524076U Safe and reliable surge protection device
11/07/2012CN202524075U Direct-current surge protection module
11/07/2012CN202524074U Secondary open circuit protector of current transformer
11/07/2012CN202524073U Overvoltage protection circuit and communication equipment
11/07/2012CN202524067U Input over-voltage and under-voltage protection device of communication power supply module
11/07/2012CN202524063U 330kV-500kV transformer neutral point complete equipment
11/07/2012CN102771026A Surge absorbing circuit and electronic device using the same
11/07/2012CN102769489A Lightning-protection type GNSS (Global Navigation Satellite System) signal relay amplifier
11/07/2012CN102769284A Small-size electrostatic discharge protection circuit in radio frequency power amplifier
11/07/2012CN102769283A Lightning protection device for data transmission cable of remote sensing digital seismograph
11/07/2012CN102769282A Electro static discharge protective circuit for circuit board interface
11/07/2012CN102769281A Quick-response current-limiting protection circuit
11/07/2012CN102769253A Device and method for quick closing of an electric circuit and a use of the device
11/07/2012CN102769026A Low-capacitance high-speed transmission semiconductor surge protection device
11/07/2012CN102767995A Motor-driven switching type lightning protection equipment and lightning protection method for electric cables of ground-to-air guided missile weapon system
11/07/2012CN102767487A Lightning protection system for a wind turbine and method for protecting components of a wind turbine against lightning strikes
11/07/2012CN102208412B SCR structure used for ESD protection of integrated circuit output stage
11/07/2012CN101233584B Circuit protection device
11/06/2012US8305724 Circuit protector and electric connection box
11/06/2012US8305722 Dual-directional electrostatic discharge protection method
11/06/2012US8305721 Electrostatic discharge protection device and method thereof
11/06/2012US8305720 Latch-control protection circuit
11/06/2012US8305718 Low parasitic capacitance electrostatic discharge protection circuit
11/06/2012US8304806 ESD and EMC optimized HV-MOS transistor
11/01/2012WO2012146212A1 Dedicated lightning protection device for led lamp power supply
11/01/2012WO2012145897A1 Battery protection device and method
11/01/2012US20120275077 Systems and methods for securing a programmable device against an over-voltage attack
11/01/2012US20120275075 Electrostatic Discharge Protection Device
11/01/2012US20120275074 Esd protection device
11/01/2012US20120275073 Esd protection circuit
11/01/2012US20120275072 Power management circuit and high voltage device therein
11/01/2012US20120275070 Load control and protection system
11/01/2012US20120275067 Superconducting fault current limiter
10/2012
10/31/2012EP2518850A2 Surge protection apparatus and method using the same
10/31/2012DE102008031029B4 Elektronisches Bauelement mit einer Schutzschaltung für eine lichtemittierende Vorrichtung An electronic device having a protection circuit for a light emitting device
10/31/2012CN202514058U Flat-panel stereo self-protector
10/31/2012CN202513569U Transformer neutral point overvoltage protector
10/31/2012CN202513568U Distribution-transformer over-voltage wave tapper
10/31/2012CN202513567U Capacitor series circuit used for avoiding capacitor insulation resistance faults
10/31/2012CN202513566U Railway signal lightning protection system
10/31/2012CN202513565U High-voltage capacitor discharging device
10/31/2012CN202513564U Single-ended transient voltage protection device of ultra-high voltage direct current (DC) transmission line
10/31/2012CN202513563U Overvoltage protection circuit for passive electronic-device interface
10/31/2012CN202513562U Surge protection device
10/31/2012CN102763187A Assembly for protecting against power surges
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