| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 06/27/2007 | CN1987490A Method and device for detecting arcs |
| 06/27/2007 | CN1987489A AC electricity measurer based on microcomputer |
| 06/27/2007 | CN1323299C Monitoring circuit for battery charge/discharge and monitoring method thereof |
| 06/27/2007 | CN1323297C Ac signal level detection circuit |
| 06/26/2007 | US7236898 System and method for calculating real-time voltage stability risk index in power system using time series data |
| 06/26/2007 | US7236014 Circuit and method for peak detection of an analog signal |
| 06/26/2007 | US7235980 Cable detection apparatus and method |
| 06/26/2007 | US7235979 Apparatus and method for measuring loop insertion loss single-endedly |
| 06/26/2007 | US7235962 Inductor-based current sensing |
| 06/26/2007 | US7235960 Ground control unit for cable locating |
| 06/26/2007 | CA2178292C Low cost apparatus for detecting arcing faults and circuit breaker incorporating same |
| 06/21/2007 | WO2007069102A2 Current measurement circuit and method |
| 06/21/2007 | WO2007068585A1 Power generator as an alarm sensor |
| 06/21/2007 | WO2007068409A1 Low-resistance coaxial resistor for current measurement |
| 06/21/2007 | WO2007068041A1 Load detector for a dimmer |
| 06/21/2007 | US20070143048 Test method of microsctructure body and micromachine |
| 06/21/2007 | US20070139055 Electric Circuit Tracing System |
| 06/21/2007 | US20070139031 Method for simulating resistor characteristics at high electric fields |
| 06/21/2007 | US20070138164 Function-supervising device |
| 06/21/2007 | DE19938779B4 Schaltung und Verfahren zur Bestimmung des Offsetfehlers bei einer offsetfehlerbehafteten Messung des Spulenstroms eines elektromagnetischen Stellgerätes Circuit and method for determining the offset error in an offset faulty measurement of the coil current of an electromagnetic actuating device |
| 06/21/2007 | DE19725459B4 Von externer Spannung unabhängiger Sperrvorspannungspegeldetektor Of external voltage independent Sperrvorspannungspegeldetektor |
| 06/21/2007 | DE102005058295A1 Schaltungsanordnung und Verfahren zur Ermittlung mindestens eines elektrischen Stromes in einer eine elektrische Maschine betreibenden Brückenschaltung Circuit arrangement and method for determining at least an electric current in an electrical machine operated bridge circuit |
| 06/20/2007 | EP1798839A2 Battery management system and method |
| 06/20/2007 | EP1798838A2 Low pass filter |
| 06/20/2007 | EP1797439A1 Method for determining zero crossing in a converter |
| 06/20/2007 | EP1797437A1 Device for determining electric variables |
| 06/20/2007 | CN2914100Y Monolithic voltage detector of fuel battery group |
| 06/20/2007 | CN2914099Y Wide voltage analog indicator |
| 06/20/2007 | CN1985179A DC current sensor |
| 06/20/2007 | CN1983691A Battery discriminating method |
| 06/20/2007 | CN1982899A Peak inspector |
| 06/20/2007 | CN1982898A System for gathering thunderbolt information |
| 06/20/2007 | CN1982897A Microcurrent tester |
| 06/20/2007 | CN1982884A Method for computing concentration of liquid fuel battery |
| 06/19/2007 | US7233868 System and method for providing adaptive power supply to system on a chip |
| 06/19/2007 | US7233746 Wide dynamic range sensor signal processing method & circuitry for analog and digital information signals |
| 06/19/2007 | US7233172 Differential amplifier circuit capable of accurately amplifying even high-speeded signal of small amplitude |
| 06/19/2007 | US7233171 Apparatus and method for transconductance stage with high current response to large signals |
| 06/19/2007 | US7233086 Power line conditioner |
| 06/14/2007 | WO2007047637A3 Improved audio synchronizer control and communications method and apparatus |
| 06/14/2007 | WO2005007866A3 Biochip devices for ion transport measurement, methods of manufacture, and methods of use |
| 06/14/2007 | US20070136010 Power line sensor |
| 06/14/2007 | DE202007004874U1 Kombinierte Überstrom- und Unterbrechungserkennung für Freileitungen Combined overcurrent and interrupt detection for overhead lines |
| 06/13/2007 | EP1796242A1 Control method and system |
| 06/13/2007 | EP1795907A1 An impulsive impedance meter for electric power systems |
| 06/13/2007 | EP1794600A1 Probe for measuring characteristics of an excitation current of a plasma, and associated plasma reactor |
| 06/13/2007 | EP1794599A1 Method and circuit provided for measuring very low intensity of electric current |
| 06/13/2007 | CN2912060Y Current limit protecting solid-state relay with combined instruction |
| 06/13/2007 | CN2911700Y Device for measuring reflecting voltage of transformer |
| 06/13/2007 | CN1981417A Power supply loading indicators and methods |
| 06/13/2007 | CN1979182A Dual logarithmic amplifier phase-magnitude detector |
| 06/13/2007 | CN1979181A Fuel-cell single-cell voltage detecting circuit |
| 06/13/2007 | CN1321498C Voltage comparing circuit |
| 06/13/2007 | CN1321326C Insulated electric resistant testing method |
| 06/13/2007 | CN1321325C High tension current detecting method |
| 06/12/2007 | US7231317 Correlating power signatures with automated equipment |
| 06/12/2007 | US7231283 Method for regulating the power supply of a number of multiple field devices |
| 06/12/2007 | US7230431 Integrating electrometer amplifying circuit |
| 06/12/2007 | US7230412 Distinguishing network interface card from short circuit condition in power over ethernet system |
| 06/12/2007 | CA2356403C Waveform measuring apparatus |
| 06/07/2007 | WO2007062612A1 Monitoring unit for monitoring the load of an electric motor |
| 06/07/2007 | WO2007029191A3 Determination of low currents with high dynamic range for optical imaging |
| 06/07/2007 | US20070126481 Peak detector |
| 06/06/2007 | EP1297347B1 Apparatus and method for the measurement and monitoring of electrical power generation and transmission |
| 06/06/2007 | CN2909685Y Remote control power supply pivot |
| 06/06/2007 | CN2909275Y Improved structure of current mutual inductor |
| 06/06/2007 | CN2909209Y On-line test instrument for vehicle start system |
| 06/06/2007 | CN1976203A Precision current sensor used for electric machine control |
| 06/06/2007 | CN1975754A Four-quadrant multiplication circuit |
| 06/06/2007 | CN1975454A Electromagnetic coefficient tester for electromagnetic material and testing method thereof |
| 06/06/2007 | CN1975446A Silicon controlled trigger current detection prewarning circuit |
| 06/06/2007 | CN1975442A Abnormal state management system for commercial image displaying device and method thereof |
| 06/05/2007 | US7227345 Fibre Channel Cable Locator |
| 05/31/2007 | WO2007060347A1 Out-of-line measurement of a current flowing through a load |
| 05/31/2007 | US20070120594 Method and apparatus for sensing current and voltage in circuits with voltage across an LED |
| 05/31/2007 | US20070120554 Detecting method and detecting apparatus for detecting internal of rechargeable battery, rechargeable battery pack having said detecting apparatus therein, apparatus having said detecting apparatus therein, program in which said detecting method is incorporated, and medium in which said program is stored |
| 05/31/2007 | US20070120530 Abnormality monitoring apparatus in load drive circuit |
| 05/31/2007 | DE102005055272A1 Verfahren und Vorrichtung zur Ermittlung von Leckströmen in batteriegespeisten Netzen Method and apparatus for determination of leakage current in battery powered systems |
| 05/30/2007 | EP1790076A2 Device and method for comparing two supply voltages |
| 05/30/2007 | EP1789808A1 Waveguide samplers and frequency converters |
| 05/30/2007 | CN2907019Y Multi-functional current limiting protection solid-state relay |
| 05/30/2007 | CN2906636Y Battery pack monitoring device for automatic guide car |
| 05/30/2007 | CN2906631Y Intelligent automatic leakage current tester for medical electric equipment |
| 05/30/2007 | CN1972051A Over-current protection apparatus |
| 05/30/2007 | CN1971695A Electroluminescence display device and its detection method |
| 05/30/2007 | CN1971678A Electro-optical apparatus, method for driving electro-optical apparatus, method for monitoring voltage, and electronic device |
| 05/30/2007 | CN1971302A Inverter of voltage polarity, detecting circuit and method of charge and discharge current of battery |
| 05/30/2007 | CN1971290A Method for measuring high voltage by current method and its device |
| 05/30/2007 | CN1971289A A heavy current AC/DC dual-purpose forcipate current sensor |
| 05/29/2007 | US7224191 Differential signal detector methods and apparatus |
| 05/29/2007 | US7224171 Method for detecting output current of inverter and device therefor |
| 05/29/2007 | US7224157 Time limit function utilization apparatus |
| 05/24/2007 | WO2006015038A8 System and method for collecting, storing, processing, transmitting and presenting very low amplitude signals |
| 05/24/2007 | US20070118311 Voltage sense apparatus and method for a capacitor charger |
| 05/24/2007 | US20070115031 Differential sense amplifier circuit and method triggered by a clock signal through a switch circuit |
| 05/24/2007 | DE10300539B4 Schaltung und Verfahren zur Erfassung von Isolationsfehlern Circuit and method of detecting insulation faults, |
| 05/24/2007 | DE10253865B4 Verfahren zur Ermittelung von ein mehrphasiges elektrotechnisches Betriebsmittel charakterisierenden elektrischen Größen Method for determination of characterizing a multiphase electrical engineering equipment electrical quantities |
| 05/24/2007 | DE10141409B4 Messgerät zur Messung einer elektrochemischen Größe Instrument for measuring an electrochemical size |
| 05/23/2007 | EP1788705A2 Voting scheme for analog signals |
| 05/23/2007 | EP1788398A1 Detector |