Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › 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)
09/2003
09/10/2003CN1441985A Sensitive ground fault detection system for use in compensated electric power distribution networks
09/09/2003US6618234 Lightning protection for irrigation controls
09/09/2003US6618230 Electrostatic discharge cell of integrated circuit
09/09/2003US6617069 Battery over-discharge protection
09/09/2003CA2110020C Isolator surge protector for dc isolation and ac grounding of cathodically protected systems
09/05/2003CA2374795A1 Current limiter with low drop voltage for surge protection and fuse protection
09/04/2003US20030165038 Circuit and method for controlling current flow through a solenoid
09/04/2003US20030165035 System and method for filtering multiple adverse characteristics from a power supply source
09/03/2003EP1340302A2 Method for protecting at least one consumer against surges and a device for carrying out said method
09/03/2003CN2571049Y Filtration type power supply lightning protector
09/02/2003US6614636 Input/output filtering system having tri-mode over-voltage protection and disconnect circuit for audio/video systems
09/02/2003US6614634 Field bus arrangement with a field bus distributor
08/2003
08/28/2003US20030161082 Power supply with low los making current limitation
08/27/2003EP1339152A1 Disruption suppressor in a measuring interface
08/27/2003EP0715791B1 An apparatus for protecting a subscriber line interface circuit against overvoltages
08/27/2003CN2569413Y Contact type surge protector releasing device
08/27/2003CN2569412Y Contactless surge protector releasing device
08/27/2003CN2569411Y Lightning protector
08/27/2003CN2569410Y Combined overvoltage protector with on-line monitoring function
08/27/2003CN1438748A Multi-stage power-supply lightning arrester
08/26/2003US6611408 Electrical transformer
08/26/2003US6611407 ESD protection circuit
08/21/2003WO2003069753A1 A protection device
08/20/2003CN1437293A Double-electrical level voltage surge protector
08/20/2003CN1437292A Portable power source lightning arrester
08/19/2003US6608470 Overcharge protection device and methods for lithium based rechargeable batteries
08/19/2003US6608402 Circuits and methods for controlling load sharing by multiple power supplies
08/14/2003WO2003067617A2 Circuit for protecting mems and electronic relay devices
08/14/2003US20030151874 Bi-level voltage surge protection
08/14/2003US20030151869 Protective circuit
08/14/2003US20030151868 Over-voltage secondary battery protector and system using same
08/14/2003US20030151862 System for overvoltage protection
08/14/2003US20030151860 Smart solid state relay
08/14/2003US20030151445 In-rush current protection
08/13/2003EP1335472A1 Voltage clamping circuit for a bicycle dynamo
08/13/2003EP1335471A2 Solid state relay
08/13/2003EP1334543A1 Energy pathway arrangement
08/13/2003EP1334542A2 Amalgam of shielding and shielded energy pathways and other elements for single or multiple circuitries with common reference node
08/13/2003CN2566515Y Surge protector for place-in low voltage distributing system
08/13/2003CN1435349A Voltage clamping circuit of power generator for bicycle
08/13/2003CN1118079C Circuit for controlling application of electricity to coil and electric current switching apparatus
08/12/2003US6606227 High voltage battery cutout circuit for a motor vehicle electrical system
08/07/2003WO2003009310A3 Surge voltage protector for use in power transmission networks
08/07/2003US20030147190 Substrate-triggered bipolar junction transistor and ESD protection circuit
08/07/2003US20030147188 ESD-protecting circuit and LSI using the same
08/06/2003EP1332506A1 Electric switching device
08/06/2003CN2565166Y Soft starting lamp burner
08/05/2003US6603317 Leakage current reduction circuit and power supply employing the same
07/2003
07/31/2003WO2003063203A2 On-chip esd protection circuit
07/31/2003US20030141918 Voltage clamping circuit for a bicycle dynamo
07/24/2003US20030137791 Contactor feedback and precharge/discharge circuit
07/24/2003US20030137790 Overcurrent protection circuit
07/24/2003US20030137789 Low voltage breakdown element for ESD trigger device
07/24/2003US20030137786 In-vehicle electric power supply apparatus
07/23/2003EP0974181A4 Improvements in transient overvoltage and lightning protection of power connected equipment
07/23/2003EP0896269B1 Method and device for automatically switching three-phase voltage for power saving transformer
07/23/2003CN1431748A Lightning protection of electric installation and detection device of lightning strikes
07/23/2003CN1431747A Circuit for restraining surge current
07/22/2003US6597554 Overvoltage protector of a burn-in board
07/17/2003WO2003058790A1 Transient suppression apparatus for potentially explosive environments
07/17/2003US20030134183 Protection circuit-equipped secondary battery
07/17/2003US20030133246 Primary/secondary wireless protector
07/17/2003US20030133237 Power-rail electrostatic discharge protection circuit with a dual trigger design
07/17/2003US20030132732 Devices and methods for protection of rechargeable elements
07/17/2003DE10146294C1 Network compensation determination method for tuning Petersen coil uses equations obtained from measured phase voltages and line currents for calculation of capacitive zero current
07/16/2003EP1327290A1 Circuit configuration for monitoring and/or regulating supply voltages
07/16/2003EP1188212A4 A multi-functional energy conditioner
07/16/2003CN1430804A Integrated current source feedback and current limiting element
07/16/2003CN1114988C Protecting method for inrush current preventing resistor
07/10/2003WO2003056670A1 Multipole overvoltage protection system and method for the reliable operation of a multipole overvoltage protection system
07/10/2003US20030131293 Enhanced spur cable circuit protection device and method for its implementation
07/10/2003US20030128493 Transient suppression apparatus for potentially explosive environments
07/10/2003US20030128486 Electrostatic discharge protection circuit for protecting input and output buffer
07/10/2003US20030127913 Digital subscriber line alternating current EMI/RFI broadband noise eliminator
07/09/2003EP1325605A1 Filter system and method to suppress interference imposed upon a frequency-division multiplexed channel
07/09/2003CN2560142Y Short-circuit fault current limiter with bypass inductance
07/09/2003CN1428909A Static protecting circuit
07/08/2003US6590439 High voltage integrated Miller capacitor feedback circuit
07/03/2003WO2003055023A2 Frequency selective transient voltage protector
07/03/2003US20030123203 High impedance insertion system for blocking EMI
07/03/2003US20030122192 Low-voltage-triggered SOI-SCR device and associated ESD protection circuit
07/02/2003EP1323221A2 Electro-static discharge protection circuit
07/02/2003CN2559153Y Arc-extinguishing and overvoltage protection device
07/02/2003CN1113493C Electronic circuits having noise eliminating element
07/01/2003US6587321 Methods and systems for improving ESD clamp response time
07/01/2003US6586899 Method and circuit arrangement for switching on a power output stage
06/2003
06/26/2003WO2003052898A1 Transient voltage clamping circuit
06/26/2003WO2003052826A1 Polarity reversal tolerant electrical circuit for esd protection
06/26/2003US20030117757 Active protection device for low voltage circuits in items of low voltage equipment
06/26/2003US20030117228 Circuit component and transformer device with controllable impedance and with systems equipped with such devices
06/26/2003US20030116806 Input protection circuit connected to protection circuit power source potential line
06/25/2003CN2558125Y Current diverter
06/25/2003CN1426620A Digital instrumentation
06/24/2003US6583997 Ultra-wide input range switching power supply for circuit protection devices
06/19/2003US20030115396 Reconfigurable ieee 1149.1 bus interface
06/19/2003US20030112575 Frequency selective transient voltage protector
06/19/2003US20030112572 Frequency selective transient voltage protector
06/19/2003US20030112565 Polarity reversal tolerant electrical circuit for ESD protection
06/18/2003EP1319265A1 Protective circuit
06/18/2003EP1258066B1 Pressure-resistant encapsulated air-gap arrangement for the draining off of damaging perturbances due to overvoltages
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