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)
11/1997
11/18/1997	US5689395 Electrical system
11/18/1997	US5689180 Isolated electrical power supply
11/12/1997	EP0806827A1 Reverse battery protection circuit
11/12/1997	EP0806826A2 Decoupling element for overvoltage protection circuit
11/12/1997	EP0806781A1 A circuit for the protected supply of an electrical load
11/12/1997	EP0806071A1 Overvoltage protector
11/12/1997	CN2267571Y Loss-free and resistor type arrangement for limiting excess current at short-circuit emergency
11/11/1997	US5687069 For starting a dc-driven device without current surges
11/11/1997	US5686830 Method of supplying positive temperature coefficient thermistor elements to the receiving and transmitting sides of a communication device
11/11/1997	US5686806 Low-pass filter and electronic speed control system for electric motors
11/06/1997	WO1997041628A1 Method for interfacing to a powered bus
11/05/1997	CN2266828Y 过电压保护器 Over-voltage protection
11/04/1997	US5684663 Protection element and method for protecting a circuit
11/04/1997	US5684366 Lamp protection device
11/04/1997	US5684322 Sensitive protection component for a subscriber line interface circuit
10/1997
10/29/1997	EP0803908A2 Semiconductor device including protection means
10/28/1997	CA2072296C Switching cirucit protection apparatus and method
10/23/1997	DE19615729A1 Protection of electrical equipment, e.g. computer, against lightning overload voltages
10/23/1997	DE19615643A1 Arrangement for protecting voltage-limited electronic modules against over-heating and over-voltage
10/22/1997	EP0802603A1 Self-excitation type switch power supply unit with overcurrent protection
10/22/1997	EP0802487A2 Hot plug computer system protection circuit
10/22/1997	CN2265617Y Telephone set lightning arrester with check grounding device
10/21/1997	US5680288 Hot plugging of an adapter card
10/16/1997	DE19631745C1 Surface acoustic wave device with overload protection impedance
10/15/1997	EP0801457A1 Protection device for electric motor, corresponding process and electrically powered driving device with such protection device
10/15/1997	EP0725993B1 An overload protective system
10/15/1997	CN1036164C 保护插塞 Protection plugs
10/14/1997	US5677820 Telephone and communications line overvoltage protection apparatus
10/14/1997	US5677205 Method for forming electrostatic discharge protection device for integrated circuit
10/08/1997	EP0799516A1 Electrical circuit breaker
10/08/1997	CN2264427Y Thunder-proof protecting plug
10/08/1997	CN1161589A Surge current absorber modular, and art for mfg. same
10/07/1997	US5675486 Electric power circuit having means for suppressing generation of harmonics flowing back to AC power source
10/07/1997	US5675468 Apparatus and method for protecting equipment against electrical power surges
10/07/1997	US5675467 Circuit mounting unit
10/02/1997	WO1997026695A3 Connector for consumer networks
10/01/1997	EP0798910A1 Overvoltage protection for telephone line interface
09/1997
09/30/1997	CA1339484C Modular electrical assemblies with pressure relief
09/23/1997	US5671111 Apparatus for electro-static discharge protection in a semiconductor device
09/23/1997	US5670829 Precision current limit circuit
09/23/1997	CA2095500C Telephone line overvoltage protection method and apparatus
09/23/1997	CA2080333C Surge absorber
09/18/1997	WO1997034210A1 Controllable reactor with feedback control winding
09/17/1997	EP0795218A1 Ignition apparatus and method
09/17/1997	CN1159854A Barrier device
09/16/1997	US5668866 Apparatus for protecting a subscriber line interface circuit against overvoltages
09/16/1997	US5667711 Circuit breaker incorporating trip coil as shunt resistor in parallel with current limiting polymer
09/16/1997	CA2068890C System for protecting a dc power distribution bus during hot servicing
09/09/1997	US5666255 Transformerless conditioning of a power distribution system
09/09/1997	US5666254 Voltage sensing overcurrent protection circuit
09/04/1997	WO1997032382A1 Self-compressive surge arrester module and method of making same
09/04/1997	WO1997032319A1 Self-compressive surge arrester module and method of making same
09/04/1997	WO1997027657A3 Current limiting circuit
09/03/1997	EP0793308A1 Line coupler
09/03/1997	CN2261682Y Protector for telephone as overcurrent and overvoltage
09/03/1997	CN1158509A Pop wave absorbing circuit structure
09/02/1997	US5663860 High voltage protection circuits
08/1997
08/27/1997	EP0791223A1 Surge arrester with overvoltage sensitive grounding switch
08/26/1997	US5661369 Charged particle generation with a resonant electrical circuit
08/26/1997	CA2008172C Compound lightning arrester for low voltage circuits
08/21/1997	WO1997030569A1 In-rush surge limiting electronic ballast
08/14/1997	WO1997029532A1 Electronic switch magnet control system for switching off a contactor
08/13/1997	CN2259712Y 避雷保护器 Lightning protection
08/12/1997	US5656968 Circuit arrangement for regulating the load current of a power MOSFET
08/12/1997	US5656967 Two-stage fusible electrostatic discharge protection circuit
08/07/1997	WO1997028593A1 Direct contact varistor assembly
08/07/1997	DE19605973A1 Elektronische Schaltmagnetansteuerung zum Ausschalten eines Schützes Electronic switching magnet drive to turn off a contactor
08/05/1997	US5654858 Overvoltage control circuitry
08/05/1997	US5654857 Ground fault circuit interrupt system including auxiliary surge suppression ability
08/05/1997	US5654574 Electrostatic discharge protection device for integrated circuit
07/1997
07/31/1997	WO1997027657A2 Current limiting circuit
07/30/1997	EP0786870A1 Protective circuit
07/30/1997	CN2258667Y Three-end air discharging arrester with grounding protection and self recovery
07/29/1997	US5652689 ESD protection circuit located under protected bonding pad
07/29/1997	US5652575 Switching arrangement
07/24/1997	WO1997026695A2 Connector for consumer networks
07/24/1997	WO1997021263A3 Electrical power supply with low-loss making-current limitation and step-up converter circuit
07/24/1997	DE19601878A1 Verbindungsanordnung für Verbrauchernetze A joint structure for consumer networks
07/24/1997	CA2243468A1 Connector for consumer networks
07/23/1997	EP0784896A1 Protection of active telephone line interface circuits
07/23/1997	EP0729661B1 Method for the resonance matching of petersen coils
07/23/1997	EP0616728B1 Scr protection structure and circuit with reduced trigger voltage
07/22/1997	US5650908 Surge arrestor for RF devices
07/22/1997	US5650904 Fault tolerant thermoelectric device circuit
07/17/1997	WO1997025761A1 Medical current limiter
07/17/1997	WO1997010636A3 Overcurrent protection circuit
07/16/1997	EP0783665A2 Barrier device
07/16/1997	CN1154759A Single and multi-layer variable voltage protection device and methods of making same
07/08/1997	US5646833 Apparatus and method for deriving power for switching a switch from voltage across the switch
07/08/1997	US5646810 Transient voltage surge suppression and electrical noise attenuation circuit
07/08/1997	US5646808 Electrostatic breakdown protection circuit for a semiconductor integrated circuit device
07/08/1997	US5645746 Use of PTC devices
07/08/1997	CA2072969C Voltage surge suppression device
07/03/1997	WO1997023989A1 An automatic subscriber callback system
07/03/1997	WO1997023987A1 A telephone equipment protection circuit
07/03/1997	WO1997023985A1 Modem loop current detect system to detect an off-hook condition in an extension telephone
07/03/1997	WO1997023954A1 Electrical isolation between ir receiver and further electronic circuits
07/03/1997	WO1997023840A1 Fault detection and modification circuit
07/02/1997	CN2257425Y Anti-lightning stroke protector for wire television
07/02/1997	CN1153424A Method of carrying out safety power-saving running for electric appliances, e.g. motors

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