Patents
Patents for H02H 11 - Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result (2,416)
04/2002
04/11/2002DE10048184A1 Gegenspannungsschutzschaltung Reverse voltage protection circuit
04/10/2002CN1344052A Switch with electric damage protection before starting
04/10/2002CN1082737C Connection in particular plug-in connector for TT and TN networks
04/09/2002US6369533 Piloting circuit for an inductive load in particular for a DC electric motor
04/03/2002EP1193824A2 Reverse battery protection circuit
04/03/2002EP1192697A1 Method for preventing making on electrical short circuits existing in branches and corresponding device
03/2002
03/28/2002DE10047792A1 False polarity protection for battery for supplying electric user loads esp. in motor vehicle
03/28/2002DE10042583A1 False polarity protection circuit with first and second input terminals for supply voltage and first and second output terminals for preparing an output voltage
03/13/2002CN1339860A Power unit powered by cell
03/07/2002US20020027756 Battery-operated power supply unit
03/07/2002US20020027432 Power supply negative phase detecting circuit
02/2002
02/28/2002WO2002017456A2 Protective relay
02/28/2002US20020024784 Protective relay
02/28/2002DE10040879A1 Netzteil mit einer Batterie AC power with a battery
02/28/2002CA2420421A1 Protective relay
02/27/2002EP0998776B1 Control circuit for a direct current motor
02/20/2002EP1180840A2 Power supply negative phase detecting circuit
02/07/2002US20020014216 Control device for a starter of an internal combustion engine
02/06/2002EP1177617A1 Vacuum dust remover with electronic regulation of total capacity
01/2002
01/31/2002US20020012210 Circuit breaker incorporating fault lockout protection
01/31/2002DE10034779A1 Ansteuervorrichtung für Starter von Verbrennungsmotoren Driving device for starters of internal combustion engines
01/30/2002EP1175719A1 System for reliable prevention of the restarting of a machine
01/30/2002CN1078708C Checking device for wrong wire distribution of power supply
01/24/2002DE10034442A1 Elektronische Einheit und Verfahren zur Erkennung einer Verpolung der Bordnetzspannung in Kraftfahrzeugen Electronic unit and method for detecting a polarity reversal of the board supply voltage in motor vehicles
01/23/2002CN1078396C Connector of load in consumer electric network
01/17/2002US20020005666 Electronic unit and method for detecting a polarity inversion of the onboard power supply voltage in motor vehicles
01/16/2002EP1172915A2 Electronic device and method for sensing the reverse polarity of a vehicle power network voltage
01/16/2002EP0981849B1 Circuit for the protection of electrical devices
01/15/2002US6339526 Low voltage cutoff circuit with short circuit detection capability and method of operation thereof
01/09/2002EP1169763A1 Protective circuit for an electronic device
01/03/2002WO2002001702A1 Circuit arrangement
01/03/2002WO2002001694A2 Electronic circuit for an energy supply device, especially for a charging device for batteries
01/03/2002DE10030554A1 Schaltungsanordnung Circuitry
01/03/2002DE10030470A1 Circuit for detecting inductive or capacitive load on drive stage e.g. magnetic valve for fuel injection of IC engine, switches off drive stage if any deviation of measured output current/voltage from desired values exceeds tolerance band
01/02/2002EP1168561A2 Reverse battery protection circuit
12/2001
12/25/2001US6333607 High voltage discharge lamp device
12/18/2001US6331941 Short circuit detection method and apparatus and motor drive incorporating same
12/06/2001DE10027879A1 Direct current reversing switch with visual indication of polarity reversal, has dual color LED integrated into switch
12/04/2001US6327124 Low current ground fault relay
12/04/2001CA2257521C Electromechanical switch for interconnecting two power sources in a selected coupled state
11/2001
11/29/2001DE10022768A1 Polarity inversion protection arrangement for polarity sensitive circuit has controller whose output drives switch control input so that polarity of switch outputs is reversed if it is false
11/20/2001US6321031 Control circuit for a dc motor
11/13/2001US6316907 Filtering and voltage raising circuit for connection between a car radio and a motor-vehicle battery
11/08/2001US20010038520 Portable X-ray fluorescence analyzer
11/07/2001EP1152512A1 High voltage discharge lamp device
10/2001
10/31/2001CN2457780Y Hand-held multifunction power source
10/18/2001WO2001078208A1 Method for protecting a dc generator against overvoltage
10/17/2001EP1146620A2 Driving method of semiconductor switching device and power supply apparatus operated according to said method
10/16/2001US6304422 Polarity reversal protection circuit
10/04/2001DE10013110A1 Selektiver Leitungsschutzschalter Selective circuit breaker
09/2001
09/27/2001US20010024108 Anti-reverse connection circuit for power supply
09/27/2001DE10013939A1 Electric circuit with polarity inversion protection e.g. for vehicle electronics, has N-channel and small signal MOSFET transistors with parallel connected zener diodes and drains supplied by positive supply line
09/26/2001EP1137146A2 Selective circuit breaker
09/26/2001EP1137145A2 Anti-reverse connection circuit for power supply
09/26/2001EP1137144A1 Apparatus for connecting an AC power supply with plural phase conductors and one neutral conductor to a consumer installation
09/18/2001US6291910 Electric apparatus capable of turning off a power supply circuit automatically to inhibit resuming of operation until safety is ensured at the time of restoration from abnormal stop
09/13/2001WO2001066397A1 Method and apparatus for diagnosing short circuit conditions
08/2001
08/29/2001EP0970553B1 Operating device for carrying out switching operations in a switching system
08/23/2001WO2001061818A1 Electronic circuit breaker
08/22/2001EP1125351A1 Protective circuit for a series connection of a power semi-conductor end stage and an inductive consumer
08/16/2001EP1123575A1 Reverse polarity protection circuit for power output stage with at least one highside semiconductor switch
08/16/2001DE10002875A1 Elektrische Schaltung zum Schutz einer an eine Gleichspannungsquelle angeschlossenen elektronischen Einrichtung beim Verpolen der Gleichspannungsquelle Electrical circuit for protecting a connected to a DC voltage source electronic device in reverse polarity of the DC voltage source
08/09/2001DE10002252A1 Elektrische Schaltungsanordnung Electrical circuitry
08/02/2001DE10001735A1 Device for protecting against unwanted machinery start-up opens power switch if there is static protection request signal from at least one non-central control element
07/2001
07/26/2001WO2001053742A1 Protection device against the undesirable initiation of a machinery
07/26/2001DE10001485A1 Reverse polarity protection circuit for current load has transistor switch with inverse diode connected in load current path controlled by comparator acting as Schmitt trigger
07/12/2001WO2001050590A1 Vacuum dust remover with electronic regulation of total capacity
07/12/2001DE19963741A1 Schmutzsauger mit elektronischer Regelung der Summenleistung Vacuum cleaner with electronic control of the total power
06/2001
06/27/2001CN1301423A Battery pack protection circuit
06/20/2001CN1300457A Protective circuit for electronic modules, especially deiver modules
06/14/2001WO2001043254A1 Circuit device for supplying energy to electronic trigerring devices
06/13/2001DE19959786A1 Schaltungsanordnung zur Energieversorgung von elektrischen Auslöseeinrichtungen Circuit arrangement for supplying power to electrical tripping devices
06/07/2001DE19954974A1 Schaltungsanordnung zur Gleichrichtung einer Wechselspannung oder mehrerer Wechselspannungen Circuit arrangement for rectifying an AC voltage or more alternating voltages
05/2001
05/29/2001US6239515 Circuit for the protection of electrical devices
05/23/2001EP1102389A2 Circuit for rectifying an alternating voltage or several alternating voltages
05/23/2001DE19951094A1 Device for making safe a power supply with battery against reverse battery activity, short-circuits and/or excess voltage e.g. for vehicles, detects reduced current flow from external start point to battery
05/15/2001US6232675 Power distribution apparatus comprising relay devices for controlling current flow along power paths of the power distribution apparatus
05/10/2001DE19946744A1 Verfahren zur sicheren Ankopplung eines Fremdspannungsnetzes an ein Betriebsspannungsnetz und Schaltungsanordnung zur Durchführung des Verfahrens A process for the safe coupling of an external voltage network to an operating voltage network and circuit arrangement for performing the method
05/09/2001CN1065619C Control appts. for air conditioner
05/08/2001US6229681 Switching mode power supply apparatus having a low voltage protection circuit
05/03/2001DE19947105A1 Anorndung zum Ein- und Ausschalten elektrischer Lastkreise Anorndung on and off electrical load circuits
04/2001
04/25/2001EP1094586A2 Power supply with control circuit for short circuit detection and excess current protection
04/17/2001US6218816 Power supply with control circuit for short circuit detection and excess current protection
04/12/2001DE19930122C1 Verfahren zur Verhinderung des Draufschaltens auf in Abzweigen bestehende elektrische Kurzschlüsse und zugehörige Anordnung Method of preventing the switching plan on branching into existing electrical short circuits and associated arrangement
04/05/2001WO2001024341A1 Method for safely coupling an external voltage network to a service voltage network and circuit configuration for carrying out said method
04/04/2001EP1089413A2 Current limiter
04/04/2001EP1089308A2 Device for switching-on and switching-off of a power circuit
03/2001
03/28/2001EP1086520A1 Protective circuit for electronic modules, especially driver modules
03/27/2001US6208042 Anti-reactivation safety device
03/15/2001DE19941490A1 Schutzschaltung für eine Reihenschaltung aus Leistungshalbleiter-Schalter und einem induktiven Verbraucher Protection circuit for a series connection of power semiconductor switches and an inductive load
03/15/2001DE19941489A1 Schutzschaltung für eine Reihenschaltung aus Leistungshalbleiter-Endstufe und induktivem Verbraucher Protection circuit for a series connection of power semiconductor output stage and inductive consumer
03/14/2001CN1287704A Battery pack protection circuit
03/08/2001WO2001017088A1 Protective circuit for a series connection of a power semi-conductor end stage and an inductive consumer
03/08/2001WO2001017087A1 Protection circuit for a series connection consisting of a power semiconductor breaker and an inductive user
03/07/2001EP1081765A2 Integrated circuit built in a substrate protected against a voltage reversal
03/07/2001EP1080524A1 Battery pack protection circuit
02/2001
02/28/2001CN2421766Y Automatic earthquake controller for electrical equipment
02/27/2001US6194869 Circuit to connect battery to load only in presence of a load of acceptable magnitude
02/21/2001CN1284775A Automatic pole exchanging circuit with current detecting feedback function
02/14/2001CN1284157A Air conditioner
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