Patents
Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232)
10/1996
10/23/1996EP0739044A2 Noise reducing element and electrical circuit having the same
10/23/1996CN2238500Y Over-voltage protector made of over-voltage protective element
10/22/1996US5568345 Overvoltage protection circuit
10/16/1996EP0737378A1 Device for limiting overvoltages arriving at an obejct to be protected via an electric high-voltage transmission line
10/16/1996EP0452417B1 Flyback current dampening apparatus
10/15/1996US5566056 Coaxial transmission line surge arrestor
10/15/1996US5565826 Device for protecting against overcurrents in electric circuits
10/09/1996EP0736950A1 Device for protecting electronic circuits against supply battery disconnection (load dump) and/or overvoltages in the electrical supply circuit of motor vehicles
10/09/1996CN1133115A Magazine arrangement
10/08/1996US5563758 Circuit to permit three phase input power supply to operate when one phase drops out and provide lightening protection
10/03/1996WO1996030990A1 Current limiting device
10/02/1996EP0735734A2 Lightning protected maintenance termination unit
10/02/1996EP0735666A2 Control circuit for controlling the driving of a dc motor
10/02/1996EP0598798B1 Interface unit to detect communication signals
10/02/1996DE19512190A1 Controlled IC overvoltage protection circuit
10/02/1996CN2236698Y Special receptacle for TV set, audio system and computer
10/01/1996US5561596 AC line stabilization circuitry for high power factor loads
09/1996
09/29/1996CA2145691A1 Method and apparatus for limiting high current electrical faults in distribution networks by use of superconducting excitation in transverse flux magnetic circuit
09/25/1996EP0734106A1 Device for arresting overvoltages and for extinction of the sequential line current
09/25/1996EP0733960A2 Precision current limit circuit
09/24/1996US5559663 Surge absorber
09/24/1996US5559660 Inrush current limiter
09/24/1996US5559658 Solid-state high voltage crowbar circuit
09/24/1996US5559439 Method and device for measuring the compensation tuning and detuning of an electrical distribution network
09/19/1996WO1996028951A1 Implant device with electrostatic discharge protection
09/19/1996CA2189742A1 Implant device with electrostatic discharge protection
09/18/1996EP0732002A1 Rectifier bridge apparatus
09/18/1996EP0731986A1 Current-limiting device
09/18/1996CN1131476A Circuit arrangement
09/18/1996CN1032835C Method and device for protecting electrical power system
09/17/1996US5557509 Power supply filter system for power supply system for a communications subsystem of a weapons system
09/17/1996US5557494 Drive circuit of an electromagnetic device
09/11/1996EP0730779A1 Short circuit protected splice connector
09/10/1996US5555510 Automatic computer card insertion and removal algorithm
09/10/1996US5555150 Surge suppression system
09/10/1996US5555148 Overvoltage protection device for capacitor externally connected to power IC
09/06/1996WO1996027230A1 Protective circuit for series-connected power semiconductors
09/04/1996EP0729661A1 Method for the resonance matching of petersen coils
09/04/1996CN1130309A Device and method for preventing equipment from electric shock
08/1996
08/29/1996DE19506069A1 Current surge limitation during switching of components onto mains e.g. for fluorescent tube ballast
08/28/1996EP0540634B1 Process control instrument with loop overcurrent circuit
08/28/1996EP0524309B1 Surge suppression and fault containment circuit and packaging therefor
08/28/1996CN1130007A An apparatus for protecting a subscriber line interface circuit
08/27/1996US5550702 Adaptive duty-cycle limiting for overload protection of integrated circuits
08/27/1996US5550699 Hot plug tolerant ESD protection for an IC
08/22/1996DE19504124A1 Network over-voltage protection device for mains-operated load
08/22/1996DE19504123A1 Voltage limiter and attenuator circuit for three-phase AC networks
08/21/1996CN2233637Y Protector
08/21/1996CN2233636Y Protecting unit
08/21/1996CN1129496A Use of PCT Device in wiring harnesses
08/20/1996US5548462 Protective circuit
08/20/1996US5548134 Device for the protection of an integrated circuit against electrostatic discharges
08/14/1996EP0725993A1 An overload protective system
08/14/1996CN2233129Y Overcurrent automatic protector with individual failure indication and permanent earthing function
08/13/1996US5546261 Superconducting fault current limiter
08/13/1996US5545909 Electrostatic discharge protection device for integrated circuit
08/13/1996US5545012 Soft-start pump control system
08/08/1996DE19503237A1 Multi-pole arrangement of overvoltage protection elements for three=phase system
08/07/1996EP0724790A1 Apparatus comprising transient voltage suppression means
08/07/1996CN1128424A Device for detecting and procecing short of phase
08/06/1996US5543999 Surge protector for computer equipment
08/06/1996US5543694 Control circuit for feedback, motor-operated valve
08/06/1996CA2051564C Junction box with protection function to protect from overvoltage and overcurrent
08/01/1996WO1996023343A1 Overvoltage protector
07/1996
07/31/1996EP0724328A1 Electric power circuit having means for suppressing generation of harmonics flowing back to AC power source
07/31/1996EP0724274A2 Superconductive fault current limiters
07/31/1996EP0723738A1 Magazine arrangement
07/30/1996US5541802 Magazine arrangement including removable circuit boards
07/24/1996CN1127573A Process and arrangement for limiting short circuit current on an electric energy transmission line
07/24/1996CN1032399C Surge preventing circuit for electromagnetic induction cooking apparatus
07/23/1996US5539820 Protection of active telephone line interface circuits
07/23/1996US5539604 For sensitive electronic circuitry
07/23/1996US5539603 Current protection method and apparatus and current protected low dropout voltage circuits
07/23/1996US5539370 Inductive motor protective circuit breaker
07/17/1996EP0527800B1 Ac power conditioning circuit
07/17/1996CN2231454Y Automatically regulating electric network arc extinction device
07/16/1996US5537288 PTC switch protected termination resistor
07/11/1996DE19500125A1 Positive temperature characteristic current limiter
07/10/1996EP0720783A1 Inrush current limiter
07/10/1996CN2230990Y Over-current protector for hot coil
07/09/1996US5535087 Circuit for reducing effects of transient events on electronic equipment
07/09/1996US5535086 ESD protection circuit and method for BICMOS devices
07/04/1996WO1996020525A1 Electrical circuit breaker
07/02/1996US5532900 Semiconductor arrester
07/02/1996US5532897 High-voltage surge eliminator
07/02/1996US5532896 Distributed silicon controlled rectifiers for ESD protection
07/02/1996US5532635 Voltage clamp circuit and method
07/02/1996US5531198 Fuel injection control system for automobile engine
07/01/1996CA2143711A1 High voltage d-c current limiter
06/1996
06/27/1996DE4445961A1 Electric motor control device
06/27/1996DE4444623A1 Power MOSFET load current control circuit
06/26/1996EP0717887A1 A.c. controller
06/26/1996EP0717886A1 Current limiting device
06/26/1996EP0717880A1 Current limiting device
06/25/1996US5530613 Current limiting circuit controller
06/25/1996US5530612 Electrostatic discharge protection circuits using biased and terminated PNP transistor chains
06/19/1996EP0717485A1 Safety barrier for high speed data
06/18/1996CA2023605C Protection circuit protected from overvoltage and overcurrent
06/12/1996EP0716494A1 Overvoltage protection device
06/12/1996EP0716493A1 Transient overvoltage protection device with varistors and thermal disconnectors