Patents
Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232)
12/2000
12/28/2000WO2000079668A1 High voltage transient voltage surge suppression fuse link system
12/28/2000WO2000079666A1 An apparatus for limiting an electrical current
12/28/2000WO2000079665A1 A monitor circuit for a current limiting device
12/28/2000CA2340635A1 High voltage transient voltage surge suppression fuse link system
12/27/2000CN2412308Y Low residual voltage combined overvoltage protector
12/27/2000CN2412302Y Multifunctional protector for electrical appliances
12/26/2000US6166619 Overcurrent limiter having inductive compensation
12/26/2000US6166458 Power conditioning circuit
12/21/2000WO2000077907A1 Universal multi-functional common conductive shield structure for electrical circuitry and energy conditioning
12/20/2000EP1061628A1 A circuit for connection between a car radio and a motor-vehicle battery
12/20/2000EP1061626A1 An apparatus for limiting an electrical current
12/20/2000EP1061625A1 A monitor circuit for a current limiting device
12/20/2000EP1060553A1 Current-limiting arrangement with a superconductive transformer arrangement in an electric circuit
12/20/2000EP1060552A1 Field bus system with a field bus distributor
12/20/2000EP1016095A4 Fault current limiting superconducting coil
12/20/2000CN1277741A Overcharge protection device and methods for lithium-base rechargeable batteries
12/19/2000US6163712 Inrush current limiter with output voltage detection for control of input current level and activation of current bypass path
12/19/2000US6163470 EMI filter for an inrush relay
12/19/2000US6163469 Rush current limiting device for power circuit
12/19/2000US6163445 Low-voltage test signal path protection circuit with extended bandwidth, overvoltage and transient protection
12/17/2000CA2297882A1 Electrical circuit protection
12/14/2000WO2000076048A1 Current limiting device comprising a high temperature supraconductor
12/13/2000CN2410802Y Circuit overvoltage protector
12/13/2000CN1276909A Fault current limiting superconducting coil
12/13/2000CN1276641A Surge suppressing circuit capable of responding power disturbance change rate
12/12/2000US6160693 Short circuit protection for a semiconductor switch
12/12/2000US6160692 Microprocessor detection of transient voltage and abnormal line voltage
12/07/2000WO2000074197A1 A multi-functional energy conditioner
12/07/2000DE19927031A1 Strombegrenzungseinrichtung mit Hochtemperatur-Supraleiter Current-limiting device with high-temperature superconductors
12/07/2000CA2375135A1 A multi-functional energy conditioner
12/06/2000EP1058366A2 Surge suppression network responsive to the rate of change of power disturbances
12/06/2000CN2409698Y Triangular pyramid gap set for three-phase combined overvoltage protector
12/05/2000US6157529 Basic surge protector
12/05/2000US6157528 Polymer fuse and filter apparatus
12/05/2000US6157139 Electrical light socket
12/05/2000US6157097 Protecting method for inrush current preventing resistor
11/2000
11/30/2000WO2000072338A1 Active booster transformer system
11/30/2000WO2000072332A1 Junction box with over-current protection
11/30/2000DE19936407A1 Device for compensating mains failures and voltage dips
11/30/2000DE19930685A1 Electronic circuit for detecting short circuit in electric motor evaluates component in inverter voltage having six times supply frequency
11/29/2000CN1275253A Surge suppressor device
11/28/2000US6154118 Circuit protective device with positive temperature coefficient element and electric junction box with the device
11/28/2000US6154082 Projection device against electrostatic discharges
11/28/2000US6153948 Electronic circuits with wide dynamic range of on/off delay time
11/23/2000WO2000070631A2 A method for overcurrent protection in a superconducting cable
11/23/2000WO2000057493A3 Superconductor composite wire for current limiters
11/23/2000DE19958934A1 Motor control unit for controlling switching element of each switching arm and regulating current supplied to motor in vehicle, has high voltage and low voltage switching units and temperature detection diodes
11/22/2000EP1053597A1 Filter circuits for protecting against transient electrical pulses
11/22/2000CN2407473Y Lightning-proof safety switch socket
11/22/2000CN1058815C Surging voltage suppressing method
11/21/2000US6151200 Method of discharging SOI floating body charge
11/21/2000US6150800 Power circuit including inrush current limiter, and integrated circuit including the power circuit
11/21/2000CA2202198C Improved transient voltage surge suppression and electrical noise attenuation circuit
11/16/2000WO2000069044A1 Overvoltage protection circuit
11/15/2000EP1051674A1 Protection system
11/15/2000CN2406403Y Arc-extinguishing coil with limiting function to series resonance over-voltage
11/14/2000US6147853 Protection circuit that can be associated with a filter
11/14/2000US6147850 Auxiliary power port with integrated resettable overcurrent protection device
11/14/2000US6147845 System interconnection device and method of designing same
11/09/2000DE19920443A1 Anordnung zur Strombegrenzung mit einem supraleitenden Transformator Arrangement for current limiting with a superconducting transformer
11/08/2000EP1050892A1 Current limiting device for superconducting transformer
11/08/2000EP1050093A1 Paired multi-layered dielectric independent passive component architecture resulting in differential and common mode filtering with surge protection in one integrated package
11/08/2000EP1050092A1 Power conditioning circuit
11/08/2000CN2405365Y Arrangement for controlling excess current
11/08/2000CN2405364Y Protecting arrangement for signal inputting terminal
11/08/2000CN2405345Y Lightning protection and anti-interference electric power supply socket
11/08/2000CN2405344Y Lightning protection and anti-interference telephone set socket
11/08/2000CN1272972A Terminal block for protective relay
11/08/2000CN1272707A Total-state compensating arc-extinguishing coil automatic tuning device
11/07/2000US6144540 Current suppressing circuit breaker unit for inductive motor protection
11/01/2000CN2404248Y Special lightning-protection & arc extinguishing device for high-voltage transmission line
11/01/2000CN2404247Y Safety lightning-protection apparatus for domestic electric appliance line
11/01/2000CN2404246Y Lightning-protection earth leakage protective device
11/01/2000CN2404245Y Fire prevention all self-healing safety protection unit
10/2000
10/26/2000WO2000064024A1 Downhole electronics protection apparatus
10/26/2000WO2000064023A1 Inrush current limiting protection circuit
10/25/2000EP1047092A2 Overcurrent protection device
10/25/2000CN1271458A Power distribution network incorporating a voltage support transformer and process of use
10/24/2000US6137388 Resistive superconducting current limiter
10/24/2000US6137352 Circuit arrangement for protection of HF-input-circuit on telecommunications devices
10/24/2000CA2183176C High power dc blocking device for ac and fault current grounding
10/19/2000WO2000062394A1 Safety barrier for limiting current and voltage
10/19/2000WO2000062393A1 Protective circuit for an electronic device
10/18/2000EP1045501A2 A piloting circuit for an inductive load, in particular for a dc electric motor
10/18/2000EP1045444A1 Electrostatic discharge protection
10/17/2000US6133653 Recirculating driver control circuit and method of operating the same
10/17/2000CA2206409C Improved variable frequency drive reflected wave suppressors
10/12/2000DE19915849A1 Fault-current (FI-) circuit breaker device e.g. for frequency converters
10/12/2000DE10007888A1 Electric device for protecting electric circuit has positive temperature coefficient elements inserted between three substrates and linked in parallel between two end connections
10/11/2000EP1042860A1 Controlled rectifier bridge with over-voltage protection
10/11/2000EP1042820A1 SUPERCONDUCTOR STRUCTURE WITH HIGH-T c? SUPERCONDUCTOR MATERIAL, METHOD FOR PRODUCING SAID STRUCTURE AND CURRENT-LIMITING DEVICE WITH A STRUCTURE OF THIS TYPE
10/11/2000CN2400922Y Plug and socket for electromagnetic noise signal controlling device
10/10/2000US6130813 Protection circuit for electronic devices
10/10/2000US6130554 Programmable integrated circuit having a test circuit for testing the integrity of routing resource structures
10/06/2000CA2303025A1 Microprocessor detection of transient voltage and abnormal line voltage
10/05/2000WO2000059094A2 Devices and methods for protection of rechargeable elements
10/04/2000EP1040558A1 Method for influencing the electrical power of a load with a pulse width modulated signal
10/04/2000CN1269063A Overcurrent protection circuit with improved ptc. trip endurance
10/03/2000US6128171 Gate-coupled structure for enhanced ESD input/output pad protection in CMOS ICs
10/03/2000US6127882 Current monitors with independently adjustable dual level current thresholds