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)
12/1999
12/23/1999WO1999066618A1 A protection device and method
12/23/1999DE19825801A1 Intermediate DC circuit for AC regulator e.g. supplying electric servo motor
12/22/1999EP0966087A2 Overvoltage protection circuit
12/22/1999EP0872004A4 Transformerless conditioning of a power distribution system
12/15/1999EP0963608A1 Subscriber interface protection circuit
12/15/1999CN1047478C Coaxial transmission line surge arrestor
12/14/1999US6002569 Electrostatic discharge protection apparatus
12/14/1999US6002566 Resettable overcurrent protective circuit
12/14/1999US6002564 Overcurrent protection thick-film resistor device and overcurrent protection circuit using the same
12/14/1999US6002289 Voltage peak switch closing method for shunt capacitor energization
12/09/1999WO1999063638A1 Terminal block for a protective relay
12/08/1999EP0963025A2 Faulted feeder detection in earth fault in electricity distribution network
12/08/1999CN2353078Y Precision electronic arrestor
12/08/1999CA2271278A1 Circuit protection device
12/07/1999US5999429 Bulk filter capacitor discharge in a switching power supply
12/07/1999US5999394 Terminal block for a protective relay
12/07/1999US5999392 Reset circuit with transient detection function
12/07/1999US5999391 Outage device and surge protection using the same
12/07/1999US5999388 Method and apparatus for limiting current in a direct voltage network of a power transmission system
12/07/1999US5999387 Current limiting device
12/07/1999US5999386 Cross-referenced electrostatic discharge protection systems and methods for power supplies
12/07/1999US5999384 Circuit interrupter with arcing fault protection and PTC (positive temperature coefficient resistivity) elements for short circuit and overload protection
12/02/1999WO1999062158A1 Low capacitance surge protector for high speed data transmission
12/02/1999DE19817231C1 Entstörmodul Interference suppression
12/01/1999EP0960457A1 Protective device against excessive currents, in particular for resettable protection of a controlled switch
12/01/1999EP0753215A4 Electrostatic discharge protection circuits using biased and terminated pnp transistor chains
12/01/1999CN1047041C Rectifier bridge apparatus
12/01/1999CN1047038C Circuit arrangement
12/01/1999CN1047029C Electromechanical connected magazine arrangement for PCB
11/1999
11/30/1999US5995392 Current limiter
11/30/1999US5995353 Apparatus for discharging an electrostatic discharge via a spark gap coupled in series with a high impedance network
11/30/1999US5995352 Ignition apparatus and method
11/30/1999US5995348 Ground safety device for medical ultrasound probes
11/30/1999US5994889 Circuit arrangement for limiting the current at make of a capacitative load
11/30/1999US5994845 Electrical light socket
11/25/1999WO1999060539A1 Fault condition protective device for aircraft fuel gauging systems
11/24/1999CN1236211A High current protection circuit for telephone interface
11/23/1999US5991175 Control circuit for an in-rush current control element, and a protection circuit and power supply employing the same
11/23/1999US5991141 Surge arrester arranged to provide failure indication
11/23/1999US5990723 Filter circuits for protecting against transient electrical pulses
11/23/1999US5990581 Method and system for allowing a power supply circuit to use a small current specification switch
11/23/1999CA2155401C Superconducting electrical connection
11/18/1999WO1999059224A2 Electrical light socket
11/18/1999DE19910409A1 Feldbusanordnung mit einem Feldbusverteiler Field bus system with a Field Junction
11/18/1999DE19819792A1 Multi-contact switch for protecting temperature-sensitive components from overheating
11/17/1999CN1046601C Surgy current absorber modular and manufacture thereof
11/16/1999US5986903 Control apparatus for a converter for transmitting electric power between an alternating voltage network and a direct voltage network
11/16/1999US5986870 Electrical surge protector with protective enclosure
11/16/1999US5986868 Input and output noise reduction circuit
11/16/1999US5986867 Protection circuit for output drivers
11/16/1999US5986862 Electrostatic discharge protection circuit
11/16/1999US5986558 Modular precharge circuit
11/16/1999US5986536 Resistive current-limiting arrangement using high temperature superconductive material
11/16/1999US5986469 Programmable integrated circuit having L-shaped programming power buses that extend along sides of the integrated circuit
11/16/1999US5986242 Heater control device using phase angle control
11/11/1999DE19804589C1 Vorrichtung zur Entstörung von Stromschnittstellen Apparatus for interference suppression in current interfaces
11/10/1999EP0954893A1 Self-compressive surge arrester module and method of making same
11/10/1999CN2348518Y Socket connector of shockproof power supply protector for microelectronic equipment
11/09/1999US5982601 Direct transient-triggered SCR for ESD protection
11/09/1999US5982599 Input/output electrostatic discharge protection for devices with multiple individual power groups
11/09/1999US5982598 Protective circuit for a grounded power plant
11/09/1999US5982594 Intrinsically safe power source
11/09/1999CA2172461C Electric service safety disconnect apparatus with overvoltage and overcurrent protection
11/04/1999WO1999056374A1 Protection systems for rechargeable elements
11/04/1999WO1999056373A1 Inrush current limiting protection circuit
11/04/1999WO1999056292A1 A protective containment apparatus for potted electronic circuits
11/04/1999WO1999056258A1 Intrinsically-safe roof hazard alert module
11/04/1999CA2329313A1 Intrinsically-safe roof hazard alert module
11/03/1999EP0784896B1 Protection of active telephone line interface circuits
11/03/1999CN2347298Y Damper for depressing overvoltage of capacitor group
11/03/1999CN2347294Y Large current a. c. mains arrester
11/02/1999US5978446 Arc limiting device using the skin effect in ferro-magnetic materials
11/02/1999US5978237 Power recovery system
11/02/1999US5978198 Transient voltage surge suppressor with three-way fault indication
11/02/1999US5978195 Circuit protection arrangement
11/02/1999US5978192 Schmitt trigger-configured ESD protection circuit
10/1999
10/28/1999WO1999054982A1 Polarity reversal protection circuit
10/28/1999WO1999054980A1 Interference suppression module
10/28/1999DE19817792A1 Erroneous polarisation protection circuit for power switch and smart-power MOSFET
10/27/1999EP0951807A1 Improvements in or relating to thermal trip arrangements
10/27/1999EP0951749A2 A device and a method for protecting an object against fault-related over-currents
10/27/1999EP0951747A2 Switching device including spark gap for switching electrical power
10/26/1999US5973942 Start up circuit for DC powered field instrument
10/26/1999US5973898 Detector circuit and automatic electrical interrupt apparatus
10/26/1999US5973605 Thermistor monitor system
10/26/1999US5973419 Circuit and method of operation to control in-rush current and maintain power supply voltage to peripheral devices in an information system
10/26/1999CA2157262C Surge arrestor for rf devices
10/21/1999WO1999053591A1 Method and device for suppressing over-voltages
10/21/1999WO1999053590A1 Direct grounding system capable of limiting ground fault current
10/20/1999EP0950277A1 Device and method relating to protection of an object against over-currents comprising over-current reduction
10/20/1999EP0950276A1 Device and method relating to protection of an object against over-currents comprising over-current reduction and current limitation
10/20/1999CN2344908Y Resonance-proof arc-suppression coil
10/19/1999US5969929 Distributed ESD protection device for high speed integrated circuits
10/19/1999US5969928 Exhibiting positive temperature coefficient (?ptc?) characteristics
10/17/1999WO1999050860A1 Power distribution network incorporating a voltage support transformer and process of use
10/14/1999DE19815983A1 Verfahren und Vorrichtung zum Abbau von Überspannungen Method and apparatus for reducing excess voltages
10/13/1999CN1231537A Energy-saving current-limiting protective circuit suitable for various electronic rectifying filter
10/12/1999US5966283 Surge suppression for radio frequency transmission lines
10/12/1999US5966028 Programming architecture for a programmable integrated circuit employing test antifuses and test transistors
10/07/1999DE19811269C1 Electronic circuit with protective circuit for lubrication controllers in motor vehicles, esp. lorries
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