| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 04/11/2013 | WO2013050620A2 Rectifier circuit with ac side short-circuiting function and synchronized switch harvesting on inductor converter |
| 04/11/2013 | WO2013050619A1 Peak detector with false peak rejection |
| 04/11/2013 | US20130090900 Method, system, and computer-readable medium for determining performance characteristics of an object undergoing one or more arbitrary aging conditions |
| 04/11/2013 | US20130088804 Pulse current sensor and lightning protection cabinet with surge wave recording composed of the sensor |
| 04/11/2013 | US20130088290 Measurement of the Output Current of an Amplifier Circuit |
| 04/11/2013 | DE102011115503A1 Messung des Ausgangstroms einer Verstärkerschaltung Measurement of the output current of an amplifier circuit |
| 04/10/2013 | EP2579445A1 Peak detector for switched ac/dc converter |
| 04/10/2013 | EP2579051A1 Power strip current-correction-equation calculation method, current measurement method, power measurement method, manufacturing method, power strip, and current measurement system |
| 04/10/2013 | EP2579048A1 Battery system, electric vehicle, mobile body, electric power storage device, electric power supply device, and battery voltage detection device |
| 04/10/2013 | EP2579047A1 Voltage measuring apparatus for battery pack |
| 04/10/2013 | EP2577329A1 Method for detection of leakage or fault currents from equipment in an electrical power system |
| 04/10/2013 | DE202013001949U1 Messgerät zur Durchführung von Prüfungen nach den VDE-Vorschriften und DIN EN Normen mit umschaltbarer Hochspannungsprüfung Instrument for performing the tests according to VDE and DIN EN standards with switchable high-voltage test |
| 04/10/2013 | CN202872746U Power supply recovery voltage detector |
| 04/10/2013 | CN202872341U Motor controller |
| 04/10/2013 | CN202872325U Direct current grounding detection protection device used for photovoltaic power generation system |
| 04/10/2013 | CN202872249U An insulation operating rod capable of measuring load current |
| 04/10/2013 | CN202870231U Multifunctional electric power detector |
| 04/10/2013 | CN202870229U Leakage current detection and protection circuit |
| 04/10/2013 | CN202870228U Testing apparatus for distribution box |
| 04/10/2013 | CN202870216U Intelligent photovoltaic confluence data collection apparatus |
| 04/10/2013 | CN202870215U AC collection apparatus |
| 04/10/2013 | CN202870203U On-line monitoring device for lightning arrester of cable line |
| 04/10/2013 | CN202870192U Lightning-arrester on-line monitoring device |
| 04/10/2013 | CN202870185U PTC thermistor comprehensive parameter testing device |
| 04/10/2013 | CN202870173U High-frequency impedance tester |
| 04/10/2013 | CN202870164U Intelligent low-voltage metering device |
| 04/10/2013 | CN202870161U System utilizing electromagnetic current transformer to obtain measuring signal |
| 04/10/2013 | CN202870160U Transformer iron core grounding current remote monitoring device |
| 04/10/2013 | CN202870159U Current and voltage indication device for power strip |
| 04/10/2013 | CN202870158U Zero crossing detection circuit, control circuit and household appliance |
| 04/10/2013 | CN202870157U Optical signal isolated high-tension and high-precision zero cross detection circuit |
| 04/10/2013 | CN202870156U Full decompression detection circuit |
| 04/10/2013 | CN202870155U Human body dynamic potential testing system |
| 04/10/2013 | CN202870154U Carrier wave voltage detection module |
| 04/10/2013 | CN202870153U Low-voltage terminal power distribution system |
| 04/10/2013 | CN202870152U Current sampling circuit for DC power supply |
| 04/10/2013 | CN202870151U Harmonic current test system with novel current converter |
| 04/10/2013 | CN202870150U Stray current tester |
| 04/10/2013 | CN202870149U Storage battery voltage monitoring system in intelligent transformer station |
| 04/10/2013 | CN202870148U High-potential current measuring apparatus for opening-closing bus charging current test of isolating switch |
| 04/10/2013 | CN202870147U Non-isolated commercial power voltage detection circuit |
| 04/10/2013 | CN202870146U Magnetic core mounting structure for zero-flux Hall heavy-current sensor |
| 04/10/2013 | CN202870145U DC simulation signal acquisition circuit for public transformation terminal |
| 04/10/2013 | CN202870144U Current measuring device for breaker or switch cabinet |
| 04/10/2013 | CN103036625A Design method of detecting system for telecontrol remote terminal unit (RTU) and information channel |
| 04/10/2013 | CN103036494A Diagnosis of over-current conditions in bipolar motor controllers |
| 04/10/2013 | CN103036248A Photovoltaic grid-connected inverter grid-connected electric current direct component detection circuit and control method |
| 04/10/2013 | CN103034898A Vehicle-mounted personnel location label having functions of low-voltage alarming and temperature real-time monitoring |
| 04/10/2013 | CN103034804A Security chip and attack detection circuit thereof |
| 04/10/2013 | CN103034103A Fusing device of image forming apparatus and method of detecting leakage current thereof |
| 04/10/2013 | CN103033769A Fault detection method of three-phase power supply |
| 04/10/2013 | CN103033768A Power source testing system |
| 04/10/2013 | CN103033767A Test method and test device for central processing unit parameters |
| 04/10/2013 | CN103033764A Adjustable integrated device for battery code scanning and testing |
| 04/10/2013 | CN103033757A Battery-monitoring device |
| 04/10/2013 | CN103033740A Electro-migration early warning circuit of integrated circuit |
| 04/10/2013 | CN103033732A Insulated gate bipolar transistor (IGBT) fault detection circuit |
| 04/10/2013 | CN103033722A Insulated fault positioner and apparatus performing insulated fault positioning in ungrounded power-supply network |
| 04/10/2013 | CN103033700A Detecting device of responding wave form of dynamic reactive power compensation equipment and detecting method of the same |
| 04/10/2013 | CN103033693A Mobile terminal charging testing system and method |
| 04/10/2013 | CN103033680A 功率测量系统 Power measuring system |
| 04/10/2013 | CN103033679A Device for detecting regulated voltage of voltage regulator diode |
| 04/10/2013 | CN103033678A Actual measurement method for short-circuit current |
| 04/10/2013 | CN103033677A Range self-adaptation type digital voltmeter and measurement method thereof |
| 04/10/2013 | CN103033676A Extra-high voltage direct current insulator leakage current measuring system |
| 04/10/2013 | CN103033675A Alternating current synchronous collecting system and achieving method thereof |
| 04/10/2013 | CN103033674A Motor current detection apparatus, motor controller, and electric power tool |
| 04/10/2013 | CN103033673A Inductor voltage testing device |
| 04/10/2013 | CN103033672A Method for power failure monitoring and warning |
| 04/10/2013 | CN103033671A Charging detection circuit |
| 04/10/2013 | CN103033670A King-sized 110kV high voltage electricity test pencil |
| 04/10/2013 | CN103033669A Limit peak point current-sensing circuit of switching power supply |
| 04/10/2013 | CN103033668A Electric current detection circuit |
| 04/10/2013 | CN103033667A Current measurement device and method |
| 04/10/2013 | CN103033666A Current sensor |
| 04/10/2013 | CN103033665A Lightning surge detector, surge protective device, and management system for surge protective device |
| 04/10/2013 | CN102288812B Static dynamic potential intelligent test device with real-time testing technique |
| 04/10/2013 | CN102128980B Method for detecting frequency at static variable-frequency starter end of pumped storage power station |
| 04/10/2013 | CN102005744B Method for forming differential current based on current slow attenuation of differential current zero crossing identification CT (computed tomography) |
| 04/10/2013 | CN101930057B Method and system for detecting faults of power batteries |
| 04/09/2013 | US8417189 Frequency-scalable shockline-based VNA |
| 04/09/2013 | US8415941 Method and apparatus for identifying and reducing spurious frequency components |
| 04/09/2013 | US8415828 Power supply loading indicators and methods |
| 04/04/2013 | WO2013047928A1 System and method for detecting an abnormal waveform in a power distribution system |
| 04/04/2013 | WO2013047251A1 Ac input voltage interruption detection method and circuit |
| 04/04/2013 | WO2013046881A1 Current probe, current probe measurement system, and current probe measurement method |
| 04/04/2013 | WO2013045991A1 Current detection device |
| 04/04/2013 | WO2013045186A2 Brushless direct current motor having sfoc control |
| 04/04/2013 | WO2013044602A1 Zero-crossing signal detection circuit |
| 04/04/2013 | WO2013044542A1 Optical voltage transformer based on electro-optical effect |
| 04/04/2013 | WO2012173361A3 Injector and device for detecting injection button |
| 04/04/2013 | US20130085697 Method for assessing the ripple of a signal |
| 04/04/2013 | US20130083441 Lightning surge detector, surge protective device, and management system for surge protective device |
| 04/04/2013 | US20130082687 Transmitter calibration system |
| 04/04/2013 | US20130082686 Voltage measuring apparatus for buck circuit |
| 04/04/2013 | US20130082685 Fast ac voltage detector |
| 04/04/2013 | US20130082682 Peak detector |
| 04/04/2013 | DE102011083989A1 Sensormodul sowie Elektrode für ein Sensormodul Sensor module and electrode for a sensor module |
| 04/04/2013 | DE102011083826A1 Messwiderstand und Verfahren zur Messung des elektrischen Stromes Measuring resistor and method for measuring the electric current |
| 04/04/2013 | DE102011083792A1 Isolationsfehlersuchgerät und Vorrichtung zur Isolationsfehlerlokalisierung in einem ungeerdeten Stromversorgungsnetz Insulation fault detection device and device for insulation fault location in an ungrounded power system |