Patents for H02H 11 - Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result (2,416) |
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04/11/2002 | DE10048184A1 Gegenspannungsschutzschaltung Reverse voltage protection circuit |
04/10/2002 | CN1344052A Switch with electric damage protection before starting |
04/10/2002 | CN1082737C Connection in particular plug-in connector for TT and TN networks |
04/09/2002 | US6369533 Piloting circuit for an inductive load in particular for a DC electric motor |
04/03/2002 | EP1193824A2 Reverse battery protection circuit |
04/03/2002 | EP1192697A1 Method for preventing making on electrical short circuits existing in branches and corresponding device |
03/28/2002 | DE10047792A1 False polarity protection for battery for supplying electric user loads esp. in motor vehicle |
03/28/2002 | DE10042583A1 False polarity protection circuit with first and second input terminals for supply voltage and first and second output terminals for preparing an output voltage |
03/13/2002 | CN1339860A Power unit powered by cell |
03/07/2002 | US20020027756 Battery-operated power supply unit |
03/07/2002 | US20020027432 Power supply negative phase detecting circuit |
02/28/2002 | WO2002017456A2 Protective relay |
02/28/2002 | US20020024784 Protective relay |
02/28/2002 | DE10040879A1 Netzteil mit einer Batterie AC power with a battery |
02/28/2002 | CA2420421A1 Protective relay |
02/27/2002 | EP0998776B1 Control circuit for a direct current motor |
02/20/2002 | EP1180840A2 Power supply negative phase detecting circuit |
02/07/2002 | US20020014216 Control device for a starter of an internal combustion engine |
02/06/2002 | EP1177617A1 Vacuum dust remover with electronic regulation of total capacity |
01/31/2002 | US20020012210 Circuit breaker incorporating fault lockout protection |
01/31/2002 | DE10034779A1 Ansteuervorrichtung für Starter von Verbrennungsmotoren Driving device for starters of internal combustion engines |
01/30/2002 | EP1175719A1 System for reliable prevention of the restarting of a machine |
01/30/2002 | CN1078708C Checking device for wrong wire distribution of power supply |
01/24/2002 | DE10034442A1 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 |
01/23/2002 | CN1078396C Connector of load in consumer electric network |
01/17/2002 | US20020005666 Electronic unit and method for detecting a polarity inversion of the onboard power supply voltage in motor vehicles |
01/16/2002 | EP1172915A2 Electronic device and method for sensing the reverse polarity of a vehicle power network voltage |
01/16/2002 | EP0981849B1 Circuit for the protection of electrical devices |
01/15/2002 | US6339526 Low voltage cutoff circuit with short circuit detection capability and method of operation thereof |
01/09/2002 | EP1169763A1 Protective circuit for an electronic device |
01/03/2002 | WO2002001702A1 Circuit arrangement |
01/03/2002 | WO2002001694A2 Electronic circuit for an energy supply device, especially for a charging device for batteries |
01/03/2002 | DE10030554A1 Schaltungsanordnung Circuitry |
01/03/2002 | DE10030470A1 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 |
01/02/2002 | EP1168561A2 Reverse battery protection circuit |
12/25/2001 | US6333607 High voltage discharge lamp device |
12/18/2001 | US6331941 Short circuit detection method and apparatus and motor drive incorporating same |
12/06/2001 | DE10027879A1 Direct current reversing switch with visual indication of polarity reversal, has dual color LED integrated into switch |
12/04/2001 | US6327124 Low current ground fault relay |
12/04/2001 | CA2257521C Electromechanical switch for interconnecting two power sources in a selected coupled state |
11/29/2001 | DE10022768A1 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 |
11/20/2001 | US6321031 Control circuit for a dc motor |
11/13/2001 | US6316907 Filtering and voltage raising circuit for connection between a car radio and a motor-vehicle battery |
11/08/2001 | US20010038520 Portable X-ray fluorescence analyzer |
11/07/2001 | EP1152512A1 High voltage discharge lamp device |
10/31/2001 | CN2457780Y Hand-held multifunction power source |
10/18/2001 | WO2001078208A1 Method for protecting a dc generator against overvoltage |
10/17/2001 | EP1146620A2 Driving method of semiconductor switching device and power supply apparatus operated according to said method |
10/16/2001 | US6304422 Polarity reversal protection circuit |
10/04/2001 | DE10013110A1 Selektiver Leitungsschutzschalter Selective circuit breaker |
09/27/2001 | US20010024108 Anti-reverse connection circuit for power supply |
09/27/2001 | DE10013939A1 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 |
09/26/2001 | EP1137146A2 Selective circuit breaker |
09/26/2001 | EP1137145A2 Anti-reverse connection circuit for power supply |
09/26/2001 | EP1137144A1 Apparatus for connecting an AC power supply with plural phase conductors and one neutral conductor to a consumer installation |
09/18/2001 | US6291910 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 |
09/13/2001 | WO2001066397A1 Method and apparatus for diagnosing short circuit conditions |
08/29/2001 | EP0970553B1 Operating device for carrying out switching operations in a switching system |
08/23/2001 | WO2001061818A1 Electronic circuit breaker |
08/22/2001 | EP1125351A1 Protective circuit for a series connection of a power semi-conductor end stage and an inductive consumer |
08/16/2001 | EP1123575A1 Reverse polarity protection circuit for power output stage with at least one highside semiconductor switch |
08/16/2001 | DE10002875A1 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 |
08/09/2001 | DE10002252A1 Elektrische Schaltungsanordnung Electrical circuitry |
08/02/2001 | DE10001735A1 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 |
07/26/2001 | WO2001053742A1 Protection device against the undesirable initiation of a machinery |
07/26/2001 | DE10001485A1 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 |
07/12/2001 | WO2001050590A1 Vacuum dust remover with electronic regulation of total capacity |
07/12/2001 | DE19963741A1 Schmutzsauger mit elektronischer Regelung der Summenleistung Vacuum cleaner with electronic control of the total power |
06/27/2001 | CN1301423A Battery pack protection circuit |
06/20/2001 | CN1300457A Protective circuit for electronic modules, especially deiver modules |
06/14/2001 | WO2001043254A1 Circuit device for supplying energy to electronic trigerring devices |
06/13/2001 | DE19959786A1 Schaltungsanordnung zur Energieversorgung von elektrischen Auslöseeinrichtungen Circuit arrangement for supplying power to electrical tripping devices |
06/07/2001 | DE19954974A1 Schaltungsanordnung zur Gleichrichtung einer Wechselspannung oder mehrerer Wechselspannungen Circuit arrangement for rectifying an AC voltage or more alternating voltages |
05/29/2001 | US6239515 Circuit for the protection of electrical devices |
05/23/2001 | EP1102389A2 Circuit for rectifying an alternating voltage or several alternating voltages |
05/23/2001 | DE19951094A1 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 |
05/15/2001 | US6232675 Power distribution apparatus comprising relay devices for controlling current flow along power paths of the power distribution apparatus |
05/10/2001 | DE19946744A1 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 |
05/09/2001 | CN1065619C Control appts. for air conditioner |
05/08/2001 | US6229681 Switching mode power supply apparatus having a low voltage protection circuit |
05/03/2001 | DE19947105A1 Anorndung zum Ein- und Ausschalten elektrischer Lastkreise Anorndung on and off electrical load circuits |
04/25/2001 | EP1094586A2 Power supply with control circuit for short circuit detection and excess current protection |
04/17/2001 | US6218816 Power supply with control circuit for short circuit detection and excess current protection |
04/12/2001 | DE19930122C1 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 |
04/05/2001 | WO2001024341A1 Method for safely coupling an external voltage network to a service voltage network and circuit configuration for carrying out said method |
04/04/2001 | EP1089413A2 Current limiter |
04/04/2001 | EP1089308A2 Device for switching-on and switching-off of a power circuit |
03/28/2001 | EP1086520A1 Protective circuit for electronic modules, especially driver modules |
03/27/2001 | US6208042 Anti-reactivation safety device |
03/15/2001 | DE19941490A1 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 |
03/15/2001 | DE19941489A1 Schutzschaltung für eine Reihenschaltung aus Leistungshalbleiter-Endstufe und induktivem Verbraucher Protection circuit for a series connection of power semiconductor output stage and inductive consumer |
03/14/2001 | CN1287704A Battery pack protection circuit |
03/08/2001 | WO2001017088A1 Protective circuit for a series connection of a power semi-conductor end stage and an inductive consumer |
03/08/2001 | WO2001017087A1 Protection circuit for a series connection consisting of a power semiconductor breaker and an inductive user |
03/07/2001 | EP1081765A2 Integrated circuit built in a substrate protected against a voltage reversal |
03/07/2001 | EP1080524A1 Battery pack protection circuit |
02/28/2001 | CN2421766Y Automatic earthquake controller for electrical equipment |
02/27/2001 | US6194869 Circuit to connect battery to load only in presence of a load of acceptable magnitude |
02/21/2001 | CN1284775A Automatic pole exchanging circuit with current detecting feedback function |
02/14/2001 | CN1284157A Air conditioner |