Patents
Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232)
01/2003
01/23/2003WO2003007452A1 Electrostatic discharge apparatus for network devices
01/23/2003WO2003007451A1 Voltage limiting protection for high frequency power device
01/23/2003US20030016479 Electrostatic discharge (ESD) protection circuit of silicon-controlled rectifier (SCR) structure operable at a low trigger voltage
01/23/2003US20030016478 Electrostatic discharge cell of integrated circuit
01/23/2003CA2394408A1 Generator for producing high voltages
01/22/2003EP1278283A2 Device for protecting electronic components
01/22/2003EP1277265A1 Digital instrumentation
01/22/2003CN2532609Y Computerized are and resonance eliminating wire-selection comprehensive device
01/22/2003CN2532608Y Quick energy saving electronic switch device for reactor of high-voltage electricity supply and distribution system
01/22/2003CN1099684C Electromagnetic drive apparatus
01/21/2003US6510032 Integrated overcurrent and overvoltage apparatus for use in the protection of telecommunication circuits
01/16/2003WO2003005552A1 Power inverter
01/16/2003WO2003005319A1 Intrinsically safe explosion-proof sensor circuit
01/16/2003US20030011949 Dual-triggered electrostatic discharge protection circuit
01/16/2003US20030011031 Voltage limiting protection for high frequency power device
01/16/2003US20030011026 Electrostatic discharge apparatus for network devices
01/15/2003CN2531601Y Network equipment cabinet with safety control unit
01/15/2003CN1391324A Current limiter with by-pass inductor for short-circuit failure
01/09/2003US20030007303 Pressure-resistant encapsulated air-gap arrangement for the draining off of damaging perturbances due to overvoltages
01/09/2003US20030007301 Low-voltage-triggered SOI-SCR device and associated ESD protection circuit
01/09/2003US20030007298 Electrostatic discharge protective circuit
01/01/2003CN2529421Y Power-supply lighting arrester
01/01/2003CN1097878C Electric isolation between infrared receiver and further electronic circuits
12/2002
12/31/2002US6501634 High voltage transient voltage surge suppression fuse link system
12/27/2002WO2002103876A1 Electrical circuit protection system
12/25/2002CN2528142Y Safety unit of general distributing frame
12/19/2002US20020191426 Inrush current limiting circuit, power source device and power conversion device
12/19/2002US20020191359 Inrush current protection circuit
12/19/2002US20020191358 Electrostatic discharge protection device
12/19/2002US20020190325 Power semiconductor device
12/18/2002EP1267468A2 Surge protective device
12/18/2002EP0746864B1 Solid state circuit breaker
12/18/2002CN2527014Y Double regulating arc suppression coil for neutral point in ac high-voltage electric network
12/18/2002CN2527010Y Safety isolation arc suppression and protection apparatus for power supply in mine
12/17/2002US6496341 SOI electrostatic discharge protection circuit
12/17/2002US6495982 Electric motor control
12/12/2002WO2002099663A2 Intrinsically safe field bus system
12/12/2002WO2002099605A2 Method and apparatus for modular embedded control system
12/12/2002US20020186517 Electrostatic discharge protection circuit
12/11/2002CN2525714Y Dynamic analogue system serial compensation capacitance MOV control protection imitate device
12/11/2002CN1096138C Protective circuit and electric circuit using protective circuit
12/10/2002US6493245 Inrush current control for AC to DC converters
12/10/2002US6493203 Phase control switch apparatus
12/10/2002US6493199 Vertical zener-triggered SCR structure for ESD protection in integrated circuits
12/10/2002US6492799 Monitor circuit for a current limiting device
12/05/2002WO2002096696A1 System and method for actively limiting the power drawn from a power distribution bus
12/05/2002US20020182921 Overvoltage protection magazine
12/05/2002US20020181182 Circuit protection arrangement
12/05/2002US20020181177 CDM ESD protection design using deep N-well structure
12/05/2002US20020181176 Magnetic snapback sensor circuit and electrostatic discharge circuit using same
12/05/2002US20020180002 Semiconductor device
12/05/2002DE10124683A1 Leistungsbegrenzungsschaltung Power limiting circuit
12/05/2002CA2443780A1 System and method for actively limiting the power drawn from a power distribution bus
12/04/2002EP0802603B1 Self-excitation type switch power supply unit with overcurrent protection
12/04/2002CN2524422Y Improved replacing power supplier
11/2002
11/28/2002WO2002095895A1 Power limiting circuit
11/28/2002WO2002095893A1 Method and arrangement for reducing stress in electrical network
11/28/2002US20020176216 Current inrush limiting circuit
11/28/2002US20020175743 Sub-micron high input voltage tolerant input output (I/O) circuit which accommodates large power supply variations
11/27/2002CN1382253A Intrinsically safe signal conditioner for coriolis flowmeter
11/27/2002CN1095269C Modem loop current detect system to detect off-hook condition in extension telephone
11/26/2002US6487507 Remote signal conditioner for a Coriolis flowmeter
11/20/2002EP1258066A1 Pressure-resistant encapsulated air-gap arrangement for the draining off of damaging perturbances due to overvoltages
11/20/2002CN2521811Y Shunt resistance type autoamtic tracking arc suppression compensating & select switch
11/20/2002CN2521780Y Power socket surge protector
11/19/2002US6483686 Circuit for indicating abnormality of three-mode surge absorber of public electric power and a multiple-end fuse
11/19/2002US6483684 Current limiting apparatus
11/14/2002WO2002091398A2 Circuit protection arrangement
11/14/2002US20020167770 Protecting circuit against short-circuit of output terminal of AC adapter
11/13/2002EP0771465B1 Method of making single and multi-layer variable voltage protection devices
11/13/2002CN1094237C 单层及多层可变电压保护装置及其制作方法 Single and multi-variable voltage protection device and manufacturing method thereof
11/12/2002US6479882 Current-limiting device
11/07/2002US20020163768 Electrostatic discharge protection circuit using diodes
11/07/2002US20020163255 Circuits and methods for controlling load sharing by multiple power supplies
11/06/2002CN1378278A Silicon controlled rectifier circuit of high triggered current
11/05/2002US6477025 Surge protection device with thermal protection, current limiting, and failure indication
11/05/2002US6477023 Electrostatic discharge protection apparatus
11/05/2002US6476706 Current limiter having a high-temperature superconductor
11/05/2002US6476667 Adjustable current limiting/sensing circuitry and method
11/05/2002US6476618 Circuit for indicating abnormality of three-mode surge absorber of public electric power
11/05/2002US6476520 Plug connection
11/05/2002US6475958 High-temperature superconductor arrangement and a method for its production
10/2002
10/31/2002US20020159213 Methods and systems for reducing clamp voltages in surge protection circuitry
10/31/2002US20020159212 Voltage protection apparatus and methods using switched clamp circuits
10/31/2002US20020159208 ESD protection circuit for mixed-voltage I/O by using stacked NMOS transistors with substrate triggering technique
10/31/2002US20020158515 Offset pathway arrangements for energy conditioning
10/30/2002EP1252656A1 Protection device for schottky diodes
10/30/2002EP1101265B1 Circuit for limiting the inrush current of a capacitive load
10/30/2002CN1377114A Auxilitary power supply
10/29/2002US6473283 Voltage protection circuit for multi-drop bus of an automated coin vending machine
10/24/2002WO2002084837A1 Method and system for protecting electronics mounted on a vehicle
10/24/2002WO2002067279A3 Hot-swap protection circuit
10/24/2002US20020154462 Double-triggered electrostatic discharge protection circuit
10/24/2002US20020153989 Circuit for indicating abnormality of three-mode surge absorber of public electric power and a multiple-end fuse
10/24/2002US20020153571 Electrostatic discharge protection structures having high holding current for latch-up immunity
10/24/2002US20020153570 Two-stage ESD protection circuit with a secondary ESD protection circuit having a quicker trigger-on rate
10/23/2002EP1250741A1 Inrush current limiting circuit, power source device and power conversion device
10/23/2002EP0988685A4 Supplemental battery overcharge protection device
10/23/2002CN2518252Y Building blocking combined overvoltage protector
10/23/2002CN1375923A 多功能复合接触器 Multifunctional composite contacts