Patents
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
01/2014
01/16/2014DE102012106382A1 Ausgangsstufe Output stage
01/15/2014CN203398782U 相控式消弧线圈 Phased Petersen Coil
01/15/2014CN203398761U Integrated protector of motor
01/15/2014CN203398750U Overcurrent detection and control device
01/15/2014CN203398351U Live part verification prompting device for hitched ground wire
01/15/2014CN203397668U An LED number display module for a microcomputer protection apparatus
01/15/2014CN203396937U Voltage-transformer secondary voltage detection system applied in power field
01/15/2014CN203396893U Power line leakage current detection apparatus
01/15/2014CN203396869U Integrated test equipment
01/15/2014CN203396851U Phase indicating device convenient to operate
01/15/2014CN203396836U An AC detecting circuit
01/15/2014CN203396835U Monitoring and alarming system for grounding current of single-core cable
01/15/2014CN203396834U Low-cost rapid high-precision AC voltage signal sampling system
01/15/2014CN203396833U Four-path itinerant alternating-current ammeter
01/15/2014CN203396832U Monitoring circuit and drilling equipment
01/15/2014CN203396831U Current detector for lithium battery protection plate
01/15/2014CN203396830U 多功能试电笔 Multi-function test pencil
01/15/2014CN203396829U Indoor high voltage charged display
01/15/2014CN203396828U Current sensor based on planar Rogowski coil
01/15/2014CN203396827U High-voltage electroscope device
01/15/2014CN203396826U Portable induced-electricity electricity-testing device
01/15/2014CN203396825U Detection system applied in power field
01/15/2014CN203396824U Multipath voltage and current monitoring device
01/15/2014CN203396823U Middle/low-frequency lightning current shunting and monitoring device
01/15/2014CN203396822U On-line monitoring device for grounding currents flowing through sheaths of high-voltage single-core cables
01/15/2014CN203396821U Passive signal detection device
01/15/2014CN203396820U Hall closed-loop principle-based guide rail-mounted current transducer
01/15/2014CN203396809U Intelligent electricity stealing-prevention current monitoring device
01/15/2014CN203396425U A testing apparatus for a main shaft case
01/15/2014CN103518139A Method and apparatus for detection of LVDT core fallout condition
01/15/2014CN103516425A Method used for measuring trans-impedance gain of trans-impedance amplifier
01/15/2014CN103516005A Charger external power device gain sampling
01/15/2014CN103515927A Electric leakage sampling circuit and method
01/15/2014CN103515859A Electricity testing overhaul ladder
01/15/2014CN103513164A Method for monitoring discharge energy instantaneous value and accumulation value of klystron
01/15/2014CN103513154A Power distribution network electric leakage signal on-line detection device
01/15/2014CN103513148A Electric leakage warning device
01/15/2014CN103513137A Traction power supply information acquisition system based on synchronous measurement
01/15/2014CN103513097A Hall sensor temperature compensation method for automobile and Hall sensor thereof
01/15/2014CN103513096A H type filter capacitor group imbalance current detection device
01/15/2014CN103513095A Data acquisition device applied to power distribution line fault indicator detection
01/15/2014CN103513094A Device and method for eliminating power system detection signal noise
01/15/2014CN103513093A Electronic transformer collector based on 4-order Bessel filtration and software integration
01/15/2014CN103513092A Zinc oxide arrester on-line monitoring system based on wireless transmission
01/15/2014CN103513091A Abnormal overcurrent on-line detection device
01/15/2014CN103513090A Light guiding type high-voltage electrification indicating system
01/15/2014CN103513089A Electrified display sensor
01/15/2014CN103513088A Electric power system alternating current flow sampling data validity detection method
01/15/2014CN103513087A Self-adaptation load matching current collecting switching circuit
01/15/2014CN103513086A 电流传感器 Current Sensors
01/09/2014WO2014007489A1 Driver circuit for an electric vehicle and a diagnostic method for determining when a voltage driver is shorted to a ground volatge
01/09/2014WO2014006914A1 Method for manufacturing current sensor, and current sensor
01/09/2014WO2014006121A1 Temperature compensated fiber-optic current sensor
01/09/2014WO2014005399A1 Overvoltage protection circuit and current sampling device
01/09/2014US20140009299 Indirect measurement method and system for monitoring and reporting leakage currents
01/09/2014DE102012211924A1 Halbleitermodul mit einem in einer Anschlusslasche integrierten Shunt-Widerstand und Verfahren zur Ermittlung eines durch einen Lastanschluss eines Halbleitermoduls fließenden Stromes A semiconductor module with a built-in a connecting bracket shunt resistor and method for determining a current flowing through a load terminal of a semiconductor module current
01/08/2014EP2682972A1 Device for detecting the open or closed state of a switch and associated transformer protection relay monitoring device
01/08/2014EP2682765A1 Temperature compensated fiber-optic current sensor
01/08/2014EP2682761A1 Measurment at a panel by a reae side placed appliance
01/08/2014EP2681570A1 Dc bus voltage control
01/08/2014EP2681569A1 Voltage detection apparatus and method of reducing dispersion of dark currents
01/08/2014CN203387402U An inverter used for eliminating interference signals in a control system
01/08/2014CN203387166U Over/Under-voltage detection protection circuit of series supercapacitor bank
01/08/2014CN203386041U Carrier rocket ground acquisition device
01/08/2014CN203385798U A multi-connection wire testing circuit
01/08/2014CN203385792U Testing mechanism for lithium battery
01/08/2014CN203385785U Power supply line detection circuit and power supply distribution monitoring apparatus generally used for AC-DC
01/08/2014CN203385784U Contactless electroscope used for electric power maintenance operation
01/08/2014CN203385783U Low-power intelligent high-voltage charged display locking device based on AVR microcontroller
01/08/2014CN203385782U Non-transformer isolated voltage and current acquisition device
01/08/2014CN203385781U Contact current testing device
01/08/2014CN203385780U Device for suppressing misoperation on neutral point offset protection of converter transformer
01/08/2014CN203385141U Air conditioner, indoor unit and alternating current overvoltage detection device of indoor unit
01/08/2014CN103502828A Method and apparatus for measuring charging current
01/08/2014CN103499799A Strong and weak current dual-detection method of high-voltage electroscope
01/08/2014CN103499762A Online detection device for leakage current of lightning arrester of power distribution network
01/08/2014CN103499736A Over-current detection circuit and over-current protection circuit
01/08/2014CN103499735A Device for collecting high-potential corona current
01/08/2014CN103499734A Rapid and portable tester for lead-acid battery charger
01/08/2014CN103499733A Circuit and method for high-precision voltage detection
01/08/2014CN103499732A Bidirectional zero-cross detection circuit and method thereof
01/08/2014CN103499731A Supply voltage qualified rate comprehensive analysis method
01/08/2014CN103499730A Safety electricity testing and discharging device
01/08/2014CN103499729A Measurement method of voltage division ratio of voltage-sharing capacitor for spark gap of series capacitor compensation device
01/08/2014CN103499728A Method and system for detecting voltage unbalance of series capacitor bank
01/08/2014CN103499727A Method for determining reaction potential of additive in lithium-ion cell electrolyte
01/08/2014CN102719927B Preparation method of polyvinylidene fluoride (PVDF)/carbon nanotube composite nanofibers
01/08/2014CN102495322B Synchronous performance test method for digital relay protection device based on IEC61850 (International Electrotechnical Commission 61850)
01/08/2014CN102057281B Method and device for current measurement in phase lines
01/07/2014US8627125 Context sensitive power management for a resource
01/07/2014US8626462 Phase identification system and method
01/07/2014US8624610 Synthesized current sense resistor for wide current sense range
01/07/2014US8624583 Measuring alternating current flowing through an electricity supply distribution unit
01/07/2014US8624582 Measuring method, arrangement and software product
01/07/2014US8624581 Input power measuring device
01/07/2014US8624577 Identifying a cable path using light emitting diodes
01/03/2014WO2013167016A3 Apparatus and method for sampling inductor current of bridgeless pfc circuit
01/02/2014US20140002139 Maximum voltage selection circuit and method and sub-selection circuit
01/02/2014US20140002037 Switching Regulator Cycle-by-Cycle Current Estimation
01/02/2014DE112012001307T5 Leistungsumwandlungsvorrichtung Power conversion apparatus
1 ... 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 ... 299