| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 11/19/2013 | US8589099 Determining components of an electric service using tolerance ranges |
| 11/19/2013 | US8587291 Apparatus for diagnosing DC-DC converter and method thereof |
| 11/14/2013 | WO2013168921A1 Method for manufacturing lower contact terminal of probe pin |
| 11/14/2013 | WO2013167221A1 Lightning current monitoring system |
| 11/14/2013 | WO2013167016A2 Apparatus and method for sampling inductor current of bridgeless pfc circuit |
| 11/14/2013 | WO2013166931A1 Online monitoring circuit and method for series-capacitor compensation spark gap voltage divider loop |
| 11/14/2013 | US20130300407 Current Sensor |
| 11/14/2013 | US20130300400 Synchronous rectification circuit and associated zero-crossing detection method |
| 11/14/2013 | US20130300398 Discharge test circuit for testing whether there is current on a circuit board |
| 11/14/2013 | DE102013208246A1 Elektrospeicher-Verwaltungssystem, Elektrospeicherpack und Verfahren zum Schätzen des Ladezustands Electric storage management system, electric storage pack and method for estimating the state of charge |
| 11/14/2013 | DE102013007439A1 Apparatus for determining thermal power emitted from heat source used in semiconductor field, has electrical device including windings which are in thermal contact with heat region and cooling region of heat-conducting device |
| 11/14/2013 | DE102012208036A1 Elektrische Energieversorgung Electric power supply |
| 11/14/2013 | DE102012207826A1 Method for determining cell voltage at battery of battery system that is connected with propulsion system of e.g. electric car, involves calculating differential voltage between measured cell voltage and input cell voltage |
| 11/14/2013 | DE102012207704A1 Verfahren zum Übertragen von Zusatzinformationen des Akkupacks A method for transmitting sensitive information of the battery pack |
| 11/14/2013 | DE102012009205A1 Blitzstromüberwachungsvorrichtung Lightning current monitoring device |
| 11/13/2013 | EP2662696A1 Device and method for detecting state of overload and overcurrent protector |
| 11/13/2013 | EP2608338B1 Terminal connection device for a power cable |
| 11/13/2013 | EP2499983B1 Isolated current sensor |
| 11/13/2013 | CN203289003U Multifunctional insulating operating lever of transformer station |
| 11/13/2013 | CN203287720U Self-detecting central control machine |
| 11/13/2013 | CN203287505U DC insulation online monitoring device for transformer substation |
| 11/13/2013 | CN203287428U Direct current voltmeter |
| 11/13/2013 | CN203287427U Electric energy quality testing platform |
| 11/13/2013 | CN203287426U An overcurrent determining circuit |
| 11/13/2013 | CN203287425U Low-voltage early warning apparatus for electronic speed regulator, model aircraft and electronic speed regulator |
| 11/13/2013 | CN203287424U Surge current testing device |
| 11/13/2013 | CN203287423U Narrow-pulse magnetic field peak detection structure |
| 11/13/2013 | CN203287422U Direct current ammeter and universal meter |
| 11/13/2013 | CN203287421U Measurement circuit for three-phase AC voltage and current |
| 11/13/2013 | CN203287420U Broadband voltage signal acquisition apparatus |
| 11/13/2013 | CN203287419U Detection apparatus for grounding current of iron core of transformer |
| 11/13/2013 | CN203287418U High-voltage current wireless detector |
| 11/13/2013 | CN203287417U Non-contact current detection device of building fire-fighting equipment |
| 11/13/2013 | CN203287416U Intelligent substation digital statistical type voltage monitor |
| 11/13/2013 | CN103392132A Method and system for measuring electrical quantity in electrical network |
| 11/13/2013 | CN103392131A Hysteretic current mode controller for a bidirectional converter with lossless inductor current sensing |
| 11/13/2013 | CN103390879A Alternating current power supply input high voltage protection device |
| 11/13/2013 | CN103389437A Device and method for monitoring shielding current of secondary control cable of transformer substation in real time |
| 11/13/2013 | CN103389434A Method and apparatus to detect leakage current in resistance temperature detector |
| 11/13/2013 | CN103389412A Measuring method and measuring device for electrical parameters of power grid comprising small power generator |
| 11/13/2013 | CN103389408A High-voltage single-core cable sheath grounding current on-line monitoring device and control method |
| 11/13/2013 | CN103389407A Mains supply detecting device |
| 11/13/2013 | CN103389406A Voltage indicating circuit and lamp |
| 11/13/2013 | CN103389405A Discharging detection circuit |
| 11/13/2013 | CN103389404A High-precision peak value detector |
| 11/13/2013 | CN103389403A Filter-based high-voltage AC system harmonic voltage measuring method |
| 11/13/2013 | CN103389402A Prediction method of final charge-discharge voltage of RC (resistor-capacitor) circuit |
| 11/13/2013 | CN103389401A Power grid voltage detection device |
| 11/13/2013 | CN102510636B Current detection IC for driving white-light LED |
| 11/13/2013 | CN102435828B Isolated type circuit-voltage zero-crossing detecting circuit |
| 11/13/2013 | CN102375465B Linear voltage regulator and current sensing circuit thereof |
| 11/13/2013 | CN102331543B Support vector machine based fault electric arc detection method |
| 11/13/2013 | CN102288814B Real-time detection method for voltage dip |
| 11/13/2013 | CN102288800B Clamp meter capable of simultaneously measuring voltage and current and method thereof |
| 11/13/2013 | CN102208802B Power switching tube overcurrent detection and overcurrent protection circuit |
| 11/13/2013 | CN102147427B Voltage detection device |
| 11/13/2013 | CN102135561B Measuring device and method for zero-sequence current of non-effectively neutral grounded system |
| 11/12/2013 | US8583390 High bandwidth oscilloscope for digitizing an analog signal having a bandwidth greater than the bandwidth of digitizing components of the oscilloscope |
| 11/12/2013 | US8581631 Sense amplifier and electronic apparatus using the same |
| 11/12/2013 | US8581574 Logarithmic mean-square power detector |
| 11/12/2013 | US8581573 Circuit for measuring the effective current of a signal to be monitored |
| 11/07/2013 | WO2013166005A1 Power system data acquisition systems |
| 11/07/2013 | WO2013164001A1 A sensor unit for cables |
| 11/07/2013 | WO2013092130A3 Controller for a transducer, transducer, and control method |
| 11/07/2013 | US20130293224 Current sensor |
| 11/07/2013 | US20130293219 Power Management Arrangement and Method in a Utility Meter |
| 11/07/2013 | DE102013104285A1 Strukturierte HF-Spulenanordnung für einen MR-Bildgebungsscanner Structured RF coil assembly for an MRI scanner |
| 11/07/2013 | DE102012103929A1 Fault current indicator e.g. short circuit indicator, for electrical switchgear in medium voltage region, has fault current acquisition device and fault current indicator device accommodated in equipment housing |
| 11/06/2013 | CN203278292U Super-capacitor module voltage equalization circuit |
| 11/06/2013 | CN203278221U Power supply lightning arrester with neutral-ground voltage detection |
| 11/06/2013 | CN203276673U Electronic experimental device |
| 11/06/2013 | CN203275617U Signal lamp product detector based on automatic production line |
| 11/06/2013 | CN203275607U Monitoring device, monitoring control device, power device, electric power storage system, electronic device, electric vehicle, and electric power system |
| 11/06/2013 | CN203275572U A detecting apparatus for detecting the overvoltage of doubly-fed frequency converter IGBTs and anti-parallel diodes thereof |
| 11/06/2013 | CN203275568U Device for monitoring lightning-generated electromagnetic wave distribution of power lines |
| 11/06/2013 | CN203275555U Oil immersion inversion-type current transformer partial discharge detection system |
| 11/06/2013 | CN203275527U Current transformer bridge principle-based loss factor and loss current testing device |
| 11/06/2013 | CN203275507U Voltage detecting device |
| 11/06/2013 | CN203275506U Multichannel high speed main shaft motor current monitoring system |
| 11/06/2013 | CN203275505U LED flash electroprobe |
| 11/06/2013 | CN203275504U High-voltage electrification display |
| 11/06/2013 | CN203275503U Universal high-voltage potential indicator |
| 11/06/2013 | CN203275502U Signal acquisition module of remote monitoring system of distribution transformer |
| 11/06/2013 | CN203275501U Application circuit adopting L431 typical circuit to clamp analog quantity |
| 11/06/2013 | CN203275500U Modularized photovoltaic confluence monitor |
| 11/06/2013 | CN203275499U Inverter overload detection circuit |
| 11/06/2013 | CN203275498U Current sensor module of electric automobile |
| 11/06/2013 | CN203275497U Test device for testing current and voltage of transistor |
| 11/06/2013 | CN203275496U An apparatus for measuring soil streaming potential |
| 11/06/2013 | CN203275495U High voltage cable shielding net grounding wire leakage current detector |
| 11/06/2013 | CN203275494U 电流检测电路 A current detecting circuit |
| 11/06/2013 | CN203275493U Fiber current sensor |
| 11/06/2013 | CN203275492U Non-contact minimal direct current detection apparatus |
| 11/06/2013 | CN203275491U Residual current detection device |
| 11/06/2013 | CN203275490U Low voltage electromobile drive and current detecting device |
| 11/06/2013 | CN203275489U Current acquisition circuit |
| 11/06/2013 | CN203275486U Measuring device of DC amount |
| 11/06/2013 | CN203275468U Novel Rogowski coil for measuring power transmission line fault traveling wave current |
| 11/06/2013 | CN103383407A High-common-mode-rejection battery pack voltage sampling circuit |
| 11/06/2013 | CN103383406A High voltage sampling circuit in electric driving controller of electromobile |