| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 09/18/2008 | WO2008111962A1 Method and apparatus for measuring the voltage of a power source |
| 09/18/2008 | WO2008050265A3 High impedance load detection |
| 09/18/2008 | US20080228415 Semiconductor testing instrument to determine safe operating area |
| 09/18/2008 | US20080224767 Semiconductor integrated circuit and method for adjusting a capacitance value of a phase compensating capacitor |
| 09/18/2008 | US20080224690 Embedded Directional Power Sensing |
| 09/18/2008 | US20080224687 Method and apparatus for monitoring fuel cells |
| 09/18/2008 | US20080224686 System and method for remotely identifying a connected RF cable |
| 09/17/2008 | EP1970244A2 Method for equalizing the voltage of traction battery modules of a hybrid electric vehicle |
| 09/17/2008 | EP1969713A1 Monitoring unit for monitoring the load of an electric motor |
| 09/17/2008 | CN201117518Y Bidirectional pull switch with status display |
| 09/17/2008 | CN201116926Y Pincers-shaped fast electric larceny monitoring instrument |
| 09/17/2008 | CN101268358A Method of measuring critical electric current value of superconducting wire |
| 09/17/2008 | CN101267500A Digital image processing apparatus with rotating display device |
| 09/17/2008 | CN101267120A Method for identifying power device and its circuit |
| 09/17/2008 | CN101266587A USB equipment detection circuit |
| 09/17/2008 | CN101266278A Method and system for passively detecting and locating wire harness defects |
| 09/17/2008 | CN101266267A Method for confirming input voltage value output to comparator and light drive circuit |
| 09/17/2008 | CN101266266A Method and apparatus for measuring the voltage of a power source |
| 09/17/2008 | CN101266265A Method for detecting high voltage frequency converter electric network voltage phase |
| 09/17/2008 | CN101266264A Method for detecting network-free reactor high voltage frequency converter electric network voltage phase |
| 09/16/2008 | US7425799 Current detecting circuit |
| 09/16/2008 | US7425778 Apparatus and method for compensating secondary currents used in differential protection to correct for a phase shift introduced between high voltage and low voltage transformer windings |
| 09/12/2008 | WO2008107287A1 Moment-based method and system for evaluation of the reliability of a metal layer in an integrated circuit |
| 09/12/2008 | WO2008087275A3 Electrically insulated current measuring device, electronic trigger, and circuit breaker comprising such a device |
| 09/11/2008 | US20080222579 Moment-Based Method and System for Evaluation of Metal Layer Transient Currents in an Integrated Circuit |
| 09/11/2008 | US20080218172 Potential measuring apparatus |
| 09/11/2008 | US20080218155 Method for stabling voltage, pulse frequency modulating circuit and power supply using the same |
| 09/11/2008 | US20080218154 Integrated energy metering system |
| 09/11/2008 | US20080218152 Method for current sensing in switched dc-to-dc converters |
| 09/11/2008 | US20080218151 On chip duty cycle measurement module |
| 09/11/2008 | US20080218142 Current detector circuit and current mode switching regulator |
| 09/11/2008 | DE202008001608U1 Werkzeug mit Wechselspannungsdetektor Tool with AC voltage detector |
| 09/11/2008 | DE102007011232A1 Verfahren zum Abfragen eines Messwertes Method to query a measured value |
| 09/10/2008 | CN201113782Y Zero-cross detection circuit for switch power circuit |
| 09/10/2008 | CN201113500Y Electric power device |
| 09/10/2008 | CN201112993Y Solenoid valve plug with voltage display |
| 09/10/2008 | CN201112990Y Overloading caution socket structure |
| 09/10/2008 | CN101261293A Electric power steady-state signal tracking measurement based on self-adapting filter |
| 09/10/2008 | CN101261290A Battery voltage supervisory circuit |
| 09/10/2008 | CN101261289A Device for measuring electric current in a conductor |
| 09/10/2008 | CN101259551A Electrospark wire-electrode cutting process discharge condition detecting device |
| 09/09/2008 | US7423857 Current detecting circuit and actuator driving apparatus |
| 09/09/2008 | US7423477 Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning |
| 09/09/2008 | US7423434 Cable presence detection for detecting a connection between two devices |
| 09/04/2008 | WO2008106501A1 Electrical connector integrity tester |
| 09/04/2008 | WO2008104457A1 Device for measuring the current of a discharge lamp |
| 09/04/2008 | WO2008085934A3 System and method to measure series-connected cell voltages and verify measurement accuracy |
| 09/04/2008 | US20080211485 Process for Identification of Compounds for Modulating the Activity of Sodium/Calcium Exchange Transporter |
| 09/04/2008 | US20080211483 Electronic Device with an Amplifier Output Stage and an Over-Current Detection Means |
| 09/04/2008 | US20080211480 Method for the determination of a voltage limit of a clutch actuating motor |
| 09/04/2008 | US20080211479 Threshold detection in back-up power supply systems |
| 09/04/2008 | DE102005009544B4 Bauelementanordnung mit einem Lasttransistor und einem Messtransistor The component arrangement having a load transistor and a sense transistor |
| 09/03/2008 | EP1963870A2 Current measurement circuit and method |
| 09/03/2008 | CN201110876Y High-temperature superconduction material superconductivity test system |
| 09/03/2008 | CN201110869Y Line arrester positioning indicator |
| 09/03/2008 | CN201110868Y USB bus current detecting device with alarming function |
| 09/03/2008 | CN201110867Y Main accumulator battery data acquisition interface plate |
| 09/03/2008 | CN201110615Y Zero-cross signal testing circuit of air conditioner controller as well as air conditioner |
| 09/03/2008 | CN101258411A 相位检测器系统 A phase detector system |
| 09/03/2008 | CN101257208A Method for identifying transformer excitation surge current |
| 09/03/2008 | CN101257207A Method for identifying transformer inner echo surge current |
| 09/03/2008 | CN101257205A Neon tube type photoelectric coupled voltage monitoring device |
| 09/03/2008 | CN101257201A Direct current protecting observe and control system |
| 09/03/2008 | CN101256705A Equipment control system alarming device with voice and remote prompting control |
| 09/03/2008 | CN101256396A Intelligent control circuit of electro-heat water boiler |
| 09/03/2008 | CN101256211A Transformer multifunctional monitoring system |
| 09/03/2008 | CN101256208A Voltage measurement display device |
| 09/03/2008 | CN101256207A Method and apparatus for overvoltage detection circuit |
| 09/03/2008 | CN101256206A Method for measuring and recording mutation current of neutral point earthing resistor |
| 09/03/2008 | CN101256205A Instrument for measuring and recording mutation current of neutral point earthing resistor |
| 09/03/2008 | CN101256204A Current detecting device and calibration method |
| 09/03/2008 | CN101256107A Device for detecting air conditioner electronic expansion valve opening |
| 09/03/2008 | CN100417035C Detecting circuit of wide dynamic range supplied by small emitter |
| 09/03/2008 | CN100416278C Novel digital/analog double display AC electric meter |
| 08/28/2008 | WO2008008952A3 High-speed signal testing system having oscilloscope functionality |
| 08/28/2008 | US20080208493 Activity information meter |
| 08/28/2008 | US20080208491 Integrated Circuit and Method for Classification of Electrical Devices and Short Circuit Protection |
| 08/28/2008 | US20080204954 Method and apparatus to evaluate notches in an electrical power system |
| 08/28/2008 | US20080204295 Method for Operating a Digital Sensor |
| 08/28/2008 | US20080204034 Automated Electrical Wiring Inspection System |
| 08/28/2008 | US20080203997 Digital current sense |
| 08/28/2008 | US20080203996 System and method for monitoring negative bias in integrated circuits |
| 08/28/2008 | US20080203976 Voltage measuring device and voltage measuring system |
| 08/28/2008 | DE4411805B4 Stromsteller Power Plate |
| 08/27/2008 | EP1962099A2 Method of determining the energy capacity of battery |
| 08/27/2008 | EP1961018A1 Low-resistance coaxial resistor for current measurement |
| 08/27/2008 | EP1960979A1 Power generator as an alarm sensor |
| 08/27/2008 | CN201107394Y Electrical signal insulating testing apparatus of permanent magnetism synchronous electric machine |
| 08/27/2008 | CN201107377Y New type testing apparatus of surge protector |
| 08/27/2008 | CN201107368Y High-pressure electrical insulator electrified detection system |
| 08/27/2008 | CN201107361Y Residual current type circuit of electric fire supervising detector |
| 08/27/2008 | CN201107358Y Multifunctional commercial power monitor |
| 08/27/2008 | CN201107356Y New type motor rotor tester |
| 08/27/2008 | CN201107354Y SPD early alarming administrative system |
| 08/27/2008 | CN201107353Y Display for high voltage live display device |
| 08/27/2008 | CN201107352Y High voltage electrified display safety and defend apparatus |
| 08/27/2008 | CN201107351Y High voltage electrified display locking device |
| 08/27/2008 | CN201107350Y Liquid electroconductivity test pen |
| 08/27/2008 | CN201107349Y Safety test pencil |
| 08/27/2008 | CN201107348Y Two-wire system true effective value transmitter with TRMS signal conversion module as core |