Patents
Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031)
04/2008
04/10/2008WO2008042125A2 Apparatus, systems and methods for reliably detecting faults within a power distribution system
04/10/2008WO2008042116A2 Apparatus, system, and method for sharing output contacts across multiple relays
04/10/2008WO2008041995A1 Shock-proof electrical output device and method for detecting an actual load
04/10/2008WO2008040263A1 Redundant protective system and method for the redundant monitoring of objects to be protected in an electrical energy supply system
04/10/2008WO2007076550A3 Audio/video media distribution in a power center
04/10/2008US20080084646 Overload protection device
04/10/2008US20080084641 Semiconductor integrated circuit
04/10/2008DE102004024113B4 Batterie-Verpolungsschutzschaltung für einen Leistungsschalter Reverse battery protection circuit for a power switch
04/10/2008DE10132415B4 Verfahren und Vorrichtung zur Speisung mindestens einer Last in einem explosionsgefährdeten Bereich Method and apparatus for supplying at least one load in a hazardous area
04/10/2008CA2668370A1 Shock-proof electrical output device and method for detecting an actual load
04/10/2008CA2664736A1 Hardware based over-current protection circuitry for power distribution systems
04/10/2008CA2664353A1 Apparatus, systems and methods for reliably detecting faults within a power distribution system
04/09/2008EP1908158A1 Residual current breaker switch with additional trigger switch
04/09/2008EP1597674B1 Rapid regeneration of failed disk sector in a distributed database system
04/09/2008CN201045732Y Switch having current-limiting function
04/09/2008CN201045165Y Energy-saving, circuit breaking protectors of three phase electric sewing machines
04/09/2008CN101159373A Optical fiber longitudinal differential protecting equipment based on multiple terminals self-adapting sample-taking synchronisation process
04/09/2008CN100380766C Direction comparing distance relay apparatus
04/09/2008CN100380763C Short circuit protector for DC circuit
04/09/2008CN100380529C Nonvolatile memory
04/08/2008US7356844 System and method for computer security
04/08/2008US7356739 System and program for controlling a distributed processing system
04/08/2008US7356738 Electronic apparatus having improved diagnostic interface
04/08/2008US7355866 Method of detecting phase-loss state of three-phase power supply
04/08/2008US7355832 Methods and arrangements for reducing partial discharges on printed circuit boards
04/08/2008US7355830 Overcurrent protection device
04/08/2008US7355829 Overvoltage protection circuit, and power source, power supply system and electronic apparatus using the overvoltage protection circuit
04/08/2008US7355827 Ground fault circuit interrupter with reverse wiring protection
04/08/2008US7355301 Load control receiver with line under voltage and line under frequency detection and load shedding
04/03/2008US20080082216 System and method for the detection of regenerated AC voltage
04/03/2008US20080080116 Signal distribution and surge detection and protection module and method
04/03/2008US20080080115 Hardware based over-current protection circuitry for power distribution systems
04/03/2008US20080080114 Apparatus, systems and methods for reliably detecting faults within a power distribution system
04/03/2008US20080080106 Integrated DC link inductor and common mode current sensor winding
04/03/2008DE202007002077U1 Notabschaltung für Solarstromanlagen Emergency shutdown for solar power systems
04/03/2008DE102006044653A1 Battery polarity detecting device, has detector units determining negative voltage and activating electrical connection units for negative voltage to form complete circuit and stream of connection units for positive voltage flows
04/02/2008EP1905141A2 Guardringed scr esd protection
04/02/2008CN201044426Y Water source well combination control protection cabinet
04/02/2008CN201044352Y Intelligent minitype breaker
04/02/2008CN201044351Y Device capable of alarming when abnormal voltage happens in grounding system
04/02/2008CN201044350Y Over-charge or short-circuit protection circuit capable of restarting on-line
04/02/2008CN201044349Y Microcomputer type inverse time-limit over-current relay
04/02/2008CN201044348Y Microcomputer type synthetic protection monitoring apparatus
04/02/2008CN101154808A Surge protector for implementing real-time working condition data storage
04/02/2008CN101154805A Power supply device having overvoltage cutoff function, image display device, and method of cutting off overvoltage
04/02/2008CN101154801A Sampling value difference of wave-shape tracing comparison method
04/02/2008CN101154800A Method for detecting trouble electric arc and its protecting equipment
04/02/2008CN101154799A Leakage current protecting circuit
04/02/2008CN101154174A Using file system information in raid data reconstruction and migration
04/02/2008CN100379110C Far loopback testing technique for circuit longitudinal differential protection
04/02/2008CN100378672C Using file system information in raid data reconstruction and migration
04/01/2008US7353501 Generic wrapper scheme
04/01/2008US7353434 Method for controlling storage system
04/01/2008US7352550 Method of detecting run-dry conditions in fuel systems
04/01/2008US7352549 Method of automatically recognizing an electrical system
03/2008
03/27/2008WO2008034936A1 Method and apparatus for determining circular characteristic
03/27/2008WO2008034400A1 Method for producing a fault signal, which indicates a fault present in a secondary current transformer circuit, and differential protective device
03/27/2008WO2007128414A8 Safety device particularly for electrical appliances
03/27/2008US20080074820 Current protection circuit for intelligent power switch
03/27/2008US20080074819 Protection circuit for power management semiconductor devices and power converter having the protection circuit
03/27/2008US20080074818 Power supply device having overvoltage cutoff function, image display device, and method of cutting off overvoltage
03/27/2008DE102006044344A1 Überspannungsschutzgerät Surge protection device
03/27/2008DE102004015269B4 Integrierte Schaltung zur Ermittelung einer Spannung An integrated circuit for determining a voltage
03/27/2008DE10011982B4 Verfahren zur Überwachung und Beeinflussung eines Elektromotors A method for monitoring and influencing an electric motor
03/26/2008EP1903655A2 Power feeding system, electrical apparatus, power feeding apparatus, and computer readable storage medium
03/26/2008EP1903654A2 Power line communication apparatus, power feeding system, power feeding control method and computer readable medium
03/26/2008EP1903651A1 Leakage detector of vehicle-mounted power supply system
03/26/2008EP1902448A2 Combination electrical connector
03/26/2008CN201041938Y A LCD-TV power under-voltage protection circuit
03/26/2008CN201041936Y Negative power supply protection circuit
03/26/2008CN201041935Y Electric water heater power-prevention device with time-sharing detection function
03/26/2008CN201041934Y Electric water heater power-prevention device with time-sharing detection function
03/26/2008CN201041933Y Electric water heater power-prevention device with time-sharing detection function
03/26/2008CN201041881Y A power display jack
03/26/2008CN101151777A Method for storing individual data items of a low-voltage switch
03/26/2008CN101150254A A dual-feedback short circuit protection device
03/26/2008CN101150253A Protection device of energy-storage capacitor unit
03/26/2008CN101150252A Electromagnetic oven hardware protection circuit
03/26/2008CN101150251A Over-heat protection device of electronic device
03/26/2008CN101150250A Electric circuit providing protection from transients
03/26/2008CN101150249A Method for restraining late-class circuit hot swap impact current and its buffering asynchronous start circuit
03/26/2008CN101150248A Method for adjusting over-deviation of failure voltage signal
03/26/2008CN101149596A Super low-power consumption stand-by circuit
03/26/2008CN100377447C Lightning protection coaxial connector
03/25/2008US7350135 Checksum writing method and checksum checking apparatus
03/25/2008US7349190 Resistor-less accurate low voltage detect circuit and method for detecting a low voltage condition
03/25/2008US7349188 Arc fault detector responsive to patterns in interval to interval change in integrated sensed current values
03/20/2008WO2008031669A1 Apparatus for rapid discharge of capacitors
03/20/2008WO2008031364A1 Method for sampling a current or voltage profile and for forming sampling values, in particular for use in protection and control devices for energy transmission systems
03/20/2008WO2006130735B1 Circuit interrupting device having integrated enhanced rfi suppression
03/20/2008US20080068771 Reducing oscillations in system with foldback current limit when inductive load is connected
03/20/2008US20080068770 Bus driver including control circuit for overvoltage protection
03/20/2008US20080068769 System, method and device to preserve protection communication active during a bypass operation
03/20/2008US20080068081 High-voltage operational amplifier input stage and method
03/20/2008US20080067598 Layout structure of electrostatic discharge protection circuit and production method thereof
03/19/2008EP1901409A2 Apparatus and method for overload protection of electronic circuitry
03/19/2008CN201039545Y A power limited circuit
03/19/2008CN201039000Y A standby protection circuit
03/19/2008CN201038748Y Surge guard device
03/19/2008CN201038740Y Three-phase motor protector