| Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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| 04/02/2008 | CN101154809A Protection circuit for interface signal hot-plug |
| 04/02/2008 | CN101154808A Surge protector for implementing real-time working condition data storage |
| 04/02/2008 | CN100379111C Limiting circuit and motor driver using the same limiting circuit |
| 04/01/2008 | US7353084 Generator controller |
| 04/01/2008 | US7352552 Device for protection against voltage surges with mobile electrode |
| 04/01/2008 | US7352551 Gas-insulated electrical installation provided with a device for dissipating energy produced by an electric arc |
| 04/01/2008 | US7352548 Composite integrated semiconductor device |
| 04/01/2008 | US7352547 Semiconductor integrated circuit device |
| 04/01/2008 | CA2406500C An over-voltage protection circuit for use in a charging circuit |
| 03/27/2008 | WO2008034589A1 Overvoltage protection device |
| 03/27/2008 | WO2007137284A3 Probe needle protection method for high current probe testing of power devices |
| 03/27/2008 | US20080074817 Method and apparatus for an over-voltage detection circuit |
| 03/27/2008 | US20080074816 Semiconductor device alleviating or preventing surge voltage |
| 03/27/2008 | US20080074815 Electrostatic discharge protection circuit |
| 03/27/2008 | US20080074814 Circuit for Selectively Bypassing a Capacitive Element |
| 03/27/2008 | US20080074813 Discharge protection circuit |
| 03/27/2008 | US20080074064 Electric circuit providing protection from transients |
| 03/27/2008 | DE102007003343A1 System und Verfahren zum Betreiben einer LED mit Konstantstrom und mit einer Redundanzschaltung System and method for operating an LED with a constant current and having a redundancy circuit |
| 03/27/2008 | DE102006052955A1 Surge arrester for use in e.g. photovoltaic system, has link type clamp arranged in movement path of conductor section or link and comprising end coming in contact with link when switch guide is activated |
| 03/26/2008 | EP1903653A2 Over-voltage protection for power and data applications |
| 03/26/2008 | EP1902448A2 Combination electrical connector |
| 03/26/2008 | CN201041940Y An arrester |
| 03/26/2008 | CN201041939Y Pluggable signal arrester |
| 03/26/2008 | CN201041880Y Electric connection structure for multi-function RJ45 connector |
| 03/26/2008 | CN101150253A Protection device of energy-storage capacitor unit |
| 03/26/2008 | CN101150236A Connector and high-voltage sudden wave protection method |
| 03/25/2008 | US7349190 Resistor-less accurate low voltage detect circuit and method for detecting a low voltage condition |
| 03/25/2008 | US7349189 Electrical surge protection using in-package gas discharge system |
| 03/25/2008 | US7348734 Method for protecting a ballast from an output ground-fault condition |
| 03/25/2008 | CA2282869C Electrical current transformer with supraconductive windings |
| 03/20/2008 | US20080070788 Resistive Type Super Conductive Current-Limiting Device Comprising a Strip-Shaped High-TC-Super Conductive Path |
| 03/20/2008 | US20080068050 Sub-micron high input voltage tolerant input output (I/O) circuit |
| 03/20/2008 | US20080067944 Circuit structure for LCD backlight |
| 03/19/2008 | EP1900071A1 Method and arrangement for triggering a series spark gap |
| 03/19/2008 | EP1779490A4 Electronic apparatus |
| 03/19/2008 | CN201039374Y Video monitoring lighting prevention protector |
| 03/19/2008 | CN201038754Y Distribution network neutral point earthing resistance measuring and control device |
| 03/19/2008 | CN201038753Y Stable state zero-sequence current boosting device |
| 03/19/2008 | CN201038752Y Variable tuning capacitor type automatic compensation arc-suppression coil |
| 03/19/2008 | CN201038751Y Lightning protection module |
| 03/19/2008 | CN201038750Y Lightning protection square cabin |
| 03/19/2008 | CN201038749Y Fault current limiter DC control circuit |
| 03/19/2008 | CN201038748Y Surge guard device |
| 03/19/2008 | CN201038747Y Multifunctional and integral electronic circuit protection assembly |
| 03/19/2008 | CN201038746Y Protector for surge |
| 03/19/2008 | CN201037631Y Circuit of full color designed LED |
| 03/19/2008 | CN201037608Y LED energy-saving lamp device |
| 03/19/2008 | CN101145692A Drawing network high and second harmonic wave and resonance and transient voltage restraint device |
| 03/19/2008 | CN101145689A A DC lightning prevention unit and its alarming circuit |
| 03/19/2008 | CN101145688A Electrostatic discharge protection structures with reduced latch-up risks |
| 03/19/2008 | CN101145683A Control device for residual current of low-voltage power grid |
| 03/18/2008 | US7345864 Voltage limiter for coaxial cable carrying RF signals and voltage |
| 03/18/2008 | US7345861 Capacitor circuit with surge protection |
| 03/18/2008 | US7345858 Resistive superconducting fault current limiter |
| 03/18/2008 | US7345857 Power supply with surge voltage control functions |
| 03/18/2008 | US7345488 Apparatus and method for determining a faulted phase of a three-phase ungrounded power system |
| 03/13/2008 | WO2008030911A2 Inductive quench for magnet protection |
| 03/13/2008 | WO2008028435A1 Short-circuit current meter |
| 03/13/2008 | US20080062607 Electrostatic discharge protection circuit |
| 03/13/2008 | US20080062601 Magnetic techniques to address electrostatic discharge |
| 03/13/2008 | US20080062600 Electrostatic discharge protection circuit |
| 03/13/2008 | US20080062598 Esd protection circuit using self-biased current trigger technique and pumping source mechanism |
| 03/13/2008 | US20080062597 Circuit for electrostatic discharge (ESD) protection |
| 03/13/2008 | US20080062596 Distributed electrostatic discharge protection circuit with varying clamp size |
| 03/13/2008 | US20080062595 Electrostatic discharge protection circuit for compound semiconductor devices and circuits |
| 03/13/2008 | US20080062594 Input/output device capable of blocking external interference signals |
| 03/13/2008 | US20080062588 Inductive quench for magnet protection |
| 03/13/2008 | US20080062586 Integrated circuit including a switching regulator design for power over Ethernet devices |
| 03/12/2008 | EP1897198A1 Leakage current shunt in an electrical power distribution system utilizing solid state relays |
| 03/12/2008 | EP1897099A2 Circuit protection device |
| 03/12/2008 | CN201035358Y Public energy consumption divide equally machine |
| 03/12/2008 | CN101142730A Driver circuit and method with reduced di/dt and having delay compensation |
| 03/12/2008 | CN101142729A Semiconductor device based on a scr |
| 03/12/2008 | CN101141063A Esd protection circuit using self-biased current trigger technique and pumping source mechanism |
| 03/11/2008 | US7342799 System using power converter, microsurge suppressor and microsurge suppression method |
| 03/11/2008 | US7342761 Apparatus and method for limiting application of electrical power to a load |
| 03/11/2008 | US7342760 Circuit arrangement for protection against electrostatic discharge and voltage regulating device having a circuit arrangement |
| 03/11/2008 | US7342759 Power supply unit having a mains suppression filter for an electrically operated domestic appliance |
| 03/11/2008 | US7342757 System and method for quench protection of a superconductor |
| 03/06/2008 | WO2008028035A2 Magnetic techniques to address electrostatic discharge |
| 03/06/2008 | WO2008027802A2 Electrostatic discharge protection circuit for compound semiconductor devices and circuits |
| 03/06/2008 | WO2008027663A2 Distributed electrostatic discharge protection circuit with varying clamp size |
| 03/06/2008 | WO2008026766A1 Lightning arrestor, grounding electrode, and thunder surge voltage reducing method |
| 03/06/2008 | WO2007056089B1 Automated ac line filter and surge suppression apparatus and method |
| 03/06/2008 | US20080055809 Electronic equipment, driving method thereof and method of driving electronic circuit |
| 03/06/2008 | US20080055806 Semiconductor device and method of designing the same |
| 03/06/2008 | US20080055805 Semiconductor device having electro static discharge detection circuit |
| 03/06/2008 | US20080055804 Electrostatic discharge protection structures with reduced latch-up risks |
| 03/06/2008 | US20080055803 Integrated circuit arrangement and circuit array |
| 03/06/2008 | US20080055802 ESD protection circuit for a mixed-voltage semiconductor device |
| 03/06/2008 | US20080055798 Electronic power protection circuit and applications thereof |
| 03/06/2008 | US20080055797 High speed lightning regulator circuit with self test attributes |
| 03/06/2008 | US20080055796 Voltage converter for preventing switch device from being damaged by voltage spike by utilizing protection circuit |
| 03/06/2008 | US20080054832 Method of controlling a motor |
| 03/05/2008 | EP1894252A2 Monolithically integrated semiconductor assembly comprising a power component and method for producing a monolithically integrated semiconductor assembly |
| 03/05/2008 | EP1504511B1 Method and apparatus for protecting monitor circuit from fault condition |
| 03/05/2008 | CN201032685Y Lightning arrestor for electric appliance |
| 03/05/2008 | CN201032681Y Household creepage breaker capable of preventing thunder surge current |
| 03/05/2008 | CN101138139A Leakage current detection and interruption circuit |
| 03/05/2008 | CN101136546A Intelligentized electric energy management system assembled device |