| Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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| 04/06/1999 | US5892665 Overcurrent protection circuit |
| 04/06/1999 | US5892644 Passive fault current limiting device |
| 04/06/1999 | US5892370 Clock network for field programmable gate array |
| 04/01/1999 | WO1999016159A1 Ground safety device for medical ultrasound probes |
| 04/01/1999 | WO1998056095A3 Overcurrent protection circuit |
| 04/01/1999 | DE19744011A1 Leistungsschaltereinrichtung zur Energieversorgung und -verteilung Power switch means for power supply and distribution |
| 03/31/1999 | EP0905852A1 Protection circuit with filter characteristic |
| 03/31/1999 | EP0905851A1 Protection circuit for an electric pulse supply line in a semiconductor integrated device |
| 03/31/1999 | EP0739545B1 Circuit arrangement |
| 03/30/1999 | US5889453 Relay with overload protection |
| 03/30/1999 | CA2104006C Thyristor controlled series capacitor vernier control system |
| 03/25/1999 | WO1999014770A1 Fault current limiting superconducting coil |
| 03/25/1999 | DE19741300A1 Circuit arrangement to charge intermediate circuit condenser for converter containing at least one fan motor |
| 03/25/1999 | CA2303031A1 Fault current limiting superconducting coil |
| 03/24/1999 | CN2311879Y Resistance-capacitance absorber |
| 03/24/1999 | CN1212061A Method and device for automatically switching three-phase voltage for power-saving transformer |
| 03/24/1999 | CN1211823A Semiconductor device with protection circuit |
| 03/24/1999 | CN1042683C Earth leakage unit |
| 03/23/1999 | US5887050 Repeater apparatus having isolation circuit |
| 03/23/1999 | US5886892 Power supply with improved inrush circuit for limiting inrush current |
| 03/23/1999 | US5886862 Cross-referenced electrostatic discharge protection systems and methods for power supplies |
| 03/23/1999 | US5886860 Circuit breakers with PTC (Positive Temperature Coefficient resistivity |
| 03/23/1999 | US5886642 Tank barge interface |
| 03/23/1999 | US5886431 Circuit and method of operation to control in-rush current from a power supply to peripheral devices in an information system |
| 03/23/1999 | US5886419 Apparatus for driving electrical loads provided at a car |
| 03/18/1999 | WO1999013549A1 Circuit arrangement for protecting integrated circuits against electrostatic discharges |
| 03/18/1999 | WO1999013548A1 Short-circuit current limiter for a converter circuit with a capacitive accumulator |
| 03/18/1999 | DE19739683A1 Schaltungsanordnung zum Schutz integrierter Schaltungen vor elektrostatischen Entladungen Circuitry to protect integrated circuits against static discharge |
| 03/16/1999 | US5883775 Overvoltage protector |
| 03/16/1999 | US5883774 Current limiter |
| 03/16/1999 | US5883504 Power supply unit |
| 03/11/1999 | WO1999012241A1 Overcurrent protection circuit with improved ptc trip endurance |
| 03/11/1999 | WO1999012240A1 Circuit and method for limiting current for alternating current consumers |
| 03/11/1999 | DE19739551A1 Kurzschlußstrombegrenzung für eine Stromrichterschaltung mit einem kapazitiven Speicher Short-circuit current limiter for a power converter circuit with a capacitive storage |
| 03/09/1999 | US5881251 Hot swap control circuit |
| 03/04/1999 | WO1999010959A2 Method for adjusting compensating inductor in distribution network for electrical energy |
| 03/04/1999 | WO1999010904A1 Microwave oven comprising a device for limiting peak-switching current |
| 03/04/1999 | WO1999010902A2 Circuit breakers with ptc (positive temperature coefficient resistivity) elements |
| 03/04/1999 | WO1999010897A1 Improvements relating to high voltage electric installations |
| 03/04/1999 | DE19758332A1 Overcurrent protection circuit for electrical load |
| 03/04/1999 | CA2266536A1 Circuit breakers with ptc (positive temperature coefficient resistivity) elements |
| 03/03/1999 | EP0870353A4 Isolated electrical power supply |
| 03/03/1999 | EP0724790B1 Apparatus comprising transient voltage suppression means |
| 03/03/1999 | CN2309658Y Electro-hydraulic speed regulator with step cylinder and mechanical feedback device |
| 03/03/1999 | CN2309657Y Sheet circuit breaker |
| 03/03/1999 | CN2309656Y Lightning protector specially adapted for motor |
| 03/03/1999 | CN1209913A Connector for consumer networks |
| 03/02/1999 | US5877930 Input and output noise reduction circuit |
| 03/02/1999 | US5877614 Electronic switch-mode power supply |
| 03/02/1999 | US5877534 Method of forming electrostatic discharge protection device for integrated circuit |
| 03/02/1999 | US5877467 Circuit breaker current limiting arc runner |
| 03/02/1999 | CA2103133C Power switch with inrush current control |
| 02/24/1999 | CN2309007Y 防雷装置 Lightning protection devices |
| 02/24/1999 | CN2309006Y Safety unit module |
| 02/24/1999 | CN1209245A Automatic subscriber callback system |
| 02/24/1999 | CN1209243A Telephone equipment protection circuit |
| 02/24/1999 | CN1209209A Fault detection and modification circuit |
| 02/23/1999 | US5875086 Semiconductor integrated circuit device equipped with protective system for directly discharging surge voltage from pad to discharge line |
| 02/18/1999 | DE19734721A1 Asynchronous motor three-phase AC drive system e.g. for electrified railway vehicles |
| 02/17/1999 | EP0829101B1 Resistive current-limiting arrangement using high temperature superconductive material |
| 02/17/1999 | CN2308197Y Automatic energy high-voltage ionization thunder eliminating apparatus |
| 02/17/1999 | CN2308196Y Short-circuit protection device without dangerous spark miner's lamp |
| 02/16/1999 | US5872707 SVC converter with an extra phase leg to replace a failed phase leg |
| 02/11/1999 | WO1998049695A3 Electric coupling device, electric circuit and method in connection therewith |
| 02/10/1999 | EP0896344A2 Current limiting device with electrically conductive composite and method of manufacturing the electrically conductive composite |
| 02/10/1999 | EP0896269A1 Method and device for automatically switching three-phase voltage for power saving transformer |
| 02/10/1999 | CN1207600A Telephone line overvoltage protection apparatus |
| 02/10/1999 | CN1207599A Long service life approach switch with automatic overload protection function |
| 02/09/1999 | US5869892 Noise eliminating element and electrical circuit having the same |
| 02/09/1999 | US5869873 For protecting an internal circuit |
| 02/04/1999 | WO1999005763A1 Control circuit for a direct current motor |
| 02/03/1999 | EP0895332A1 Improvement to overvoltage protection device |
| 02/03/1999 | EP0895331A1 Protection device for electrical load and power supply provided with such a device |
| 02/03/1999 | EP0829123B1 Free-wheel circuit with an adjustable off delay time |
| 02/03/1999 | CN2306605Y Excess current limiting wire-selecting apparatus for ground point of electric network |
| 02/03/1999 | CN2306604Y Non-contact recoverable short circuit protector for miner's lamp |
| 02/03/1999 | CN2306514Y Overload auto-control ammeter |
| 02/02/1999 | US5867358 Fault current limiting circuit |
| 02/02/1999 | US5867083 Protective device for surge current protection of associated equipment in communications systems |
| 01/28/1999 | WO1998049694A3 Variable electric resistor |
| 01/28/1999 | DE19732094A1 Steuerschaltung für einen Gleichstrommotor Control circuit for a DC motor |
| 01/27/1999 | EP0893868A2 Protection circuit for output drivers |
| 01/27/1999 | EP0893867A2 Resettable overcurrent protective circuit |
| 01/27/1999 | CN1206203A Current limiting device with electrically conductive composite and method of manufacturing electrically conductive composite |
| 01/26/1999 | US5864458 Overcurrent protection circuits comprising combinations of PTC devices and switches |
| 01/26/1999 | US5864457 System and method for controlling current flow in an AC adapter |
| 01/26/1999 | US5864454 Automatic surge suppressor disconnect protection system |
| 01/21/1999 | WO1999003185A1 Solid state overload relay |
| 01/20/1999 | EP0892480A1 AC/DC voltage converter |
| 01/20/1999 | CN2304936Y Multifunctional wide range constant voltage protector |
| 01/20/1999 | CN1205821A Modem loop current detect system to detect off-hook condition in extension telephone |
| 01/14/1999 | WO1999001917A1 Overvoltage protection device for electric/electronic appliances |
| 01/12/1999 | US5859758 For a semiconductor device |
| 01/12/1999 | US5859543 Programming architecture for a programmable integrated circuit employing antifuses |
| 01/12/1999 | US5859386 Superconductive electrical transmission line |
| 01/07/1999 | WO1999000811A1 A method of connecting and disconnecting an ac voltage to/from a load, as well as a switch comprising a relay |
| 01/07/1999 | DE19726678A1 Passiver Halbleiterstrombegrenzer Passive semiconductor |
| 01/07/1999 | DE19725870A1 AC limiting circuit based on silicon-carbide FETs |
| 01/06/1999 | CN2303398Y Miniature surge protector |
| 01/06/1999 | CN2303378Y Automatic earthing and cutting amplitude arrangement for electric appliance |