Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
04/2014
04/02/2014CN102116789B Ferroelectric domain movement speed-adjustable pulse voltage measurement method
04/02/2014CN102098368B Mobile phone
04/02/2014CN102097789B Over-current or short-circuit state detection circuit of insulated gate bipolar transistor (IGBT)
04/02/2014CN102077408B Method for battery state-of-health monitoring using battery voltage during vehicle starting
04/02/2014CN102023285B Undervoltage detection circuit of power supply
04/01/2014US8686798 Method and system for testing oscillator circuit
04/01/2014US8686710 Electromagnetic wave driven rotation device
03/2014
03/27/2014WO2014047644A2 Measuring dc current with a current transformer
03/27/2014WO2014046328A1 System data compression system and method thereof
03/27/2014WO2014046166A1 Voltage detection device and equalization device
03/27/2014WO2014045568A1 Current detection circuit, and electric vehicle and power accumulation device provided with said current detection circuit
03/27/2014WO2014044483A1 Method for ascertaining a current flowing through an electrical conductor
03/27/2014WO2014044408A1 Current and/or voltage sensor device, and method of operation the same
03/27/2014US20140088892 Identification of integrated circuits
03/27/2014US20140088823 Battery System for Vehicle, On-Vehicle Battery Module, and Cell Controller
03/27/2014US20140084936 Charge Pump Based Over-Sampling ADC for Current Detection
03/27/2014US20140084899 Precision reference circuit and related method
03/27/2014US20140083993 Printed circuit board for a domestic appliance, domestic appliance, and a method for operating a domestic appliance
03/27/2014DE102013015447A1 Digital gesteuertes Stromversorgungsgerät mit einer Funktion zu Fehlererkennung The digitally controlled power supply apparatus having a function to fault detection
03/27/2014DE102012217116A1 Verfahren zur Ermittlung der Phasenströme einer elektrischen Maschine mit einem Stromrichter Method for determining the phase currents of an electric machine with a power converter
03/27/2014DE102012203753B4 Ein auf dem elektro-optischen Effekt basierender optischer Spannungswandler That is based on the electro-optical effect of optical voltage transformer
03/26/2014EP2711722A1 Circuit for measuring differential voltage
03/26/2014CN203504179U Wavelet analysis-based voltage sag detection device
03/26/2014CN203504144U Electric leakage sampling circuit
03/26/2014CN203503501U Air switch having safety caution function for overloading
03/26/2014CN203503083U Cable stealing-proof system
03/26/2014CN203502777U Remote current monitoring system
03/26/2014CN203502531U Online detection device of leakage currents of power distribution network lighting arrestors
03/26/2014CN203502487U Aluminum electrolytic iron carbon voltage drop detection apparatus
03/26/2014CN203502486U Air switch with monitoring and early warning functions
03/26/2014CN203502485U Peak current detection circuit
03/26/2014CN203502484U Abnormal overvoltage online detection device
03/26/2014CN203502483U Voltage detection circuit
03/26/2014CN203502482U High-voltage electroscope
03/26/2014CN203502481U Single-magnetic-ring four-coil DC current detection device
03/26/2014CN203502480U Isolating high-voltage differential measuring probe
03/26/2014CN203502479U Shielding layer carrier communication-based power cable ground wire current on-line monitoring system
03/26/2014CN203502478U Superconducting tape testing apparatus
03/26/2014CN203502477U Middle and high voltage wireless electricity larceny preventive device
03/26/2014CN203502476U Power monitoring device
03/26/2014CN103683853A Voltage feedback detecting circuit
03/26/2014CN103683228A Control method of breaker failure protection and automatic reclosing device
03/26/2014CN103683188A Safety detection apparatus of solar energy inverter
03/26/2014CN103682862A Cable plug connector of ring main unit
03/26/2014CN103679010A Detection arrangement
03/26/2014CN103675672A Pressure switch state detection circuit, circuit board, and electric heating product with circuit board
03/26/2014CN103675670A Pressure switch state detection circuit, circuit board, and electric heating product with circuit board
03/26/2014CN103675651A Test system of long-term stability of input offset voltage of operational amplifier
03/26/2014CN103675636A Transistor threshold-voltage testing circuit
03/26/2014CN103675613A Transformer station DC system movable type insulation supervision instrument
03/26/2014CN103675569A Earth fault detection device and system for overhead line
03/26/2014CN103675488A Electrical load monitoring device, system and method
03/26/2014CN103675434A System and method for early warning insulator pollution flashover
03/26/2014CN103675433A Current sampling and protecting circuit for electronic current transformer
03/26/2014CN103675432A Signal amplitude converting system applied to paper recorder
03/26/2014CN103675431A Current collecting device on power transmission line
03/26/2014CN103675430A Circuit for detecting output current of frequency converter in real time
03/26/2014CN103675429A Noise and disturbance inhibition method for optical voltage sensor based on dual closed-loop detection
03/26/2014CN103675428A Power burr signal detection circuit and detection method thereof
03/26/2014CN103675427A Inrush current measuring device
03/26/2014CN103675426A Inductive current zero-crossing detection method, circuit and switch power supply with circuit
03/26/2014CN103675425A Self-adaptive quasi-resonance valley detection circuit of flyback switching power supply
03/26/2014CN103675424A Zero-crossing and standby zero consumption key detection circuit and washing machine
03/26/2014CN103675423A Voltage detection indicating circuit
03/26/2014CN103675422A Anti-electric larceny monitoring method and device
03/26/2014CN103675421A Power burr signal detection circuit and detection method thereof
03/26/2014CN103675420A Alarm method and electronic device
03/26/2014CN103675419A Constant-current comparison circuit and LED lamp group current monitoring device
03/26/2014CN103675418A Network voltage monitoring circuit
03/26/2014CN103675417A PDU power supply with alarm function
03/26/2014CN103675416A Undervoltage-overvoltage protection device and method
03/26/2014CN103675415A Excitation surge current detection method, excitation surge current brake method and excitation surge current detection device
03/26/2014CN103675414A Electric power electronic electroscope
03/26/2014CN103675413A Commercial alternating current power cut and power restoration notification device
03/26/2014CN103675412A Sensing test pencil based on integrated circuit with six phase inverters
03/26/2014CN103675411A Voltage detection method and voltage detection system of motor controller for electric vehicle
03/26/2014CN103675410A Current sensor
03/26/2014CN103675409A Measuring method and device for no-load back electromotive force of permanent magnet motor
03/26/2014CN103675408A Garnet type current sensing device and garnet type current sensing system
03/26/2014CN103675407A Strut-type current collection device for power transmission lines
03/26/2014CN103675406A Battery voltage automatic test screening device and method thereof
03/26/2014CN103675405A Online monitoring system capable of monitoring transformer core grounding current at extremely low temperature
03/26/2014CN103675404A Method, device, and system for sensing and regulating inductor current in inductor
03/26/2014CN103675403A Flexible current and voltage sensor
03/26/2014CN103675402A A method achieving four-wire system measurement by using a two-wire system
03/26/2014CN103675401A Current shunt sampling device and method
03/26/2014CN103675400A Sampling structure for current signal
03/26/2014CN103675399A Hall current measurement device with strong anti-jamming capability
03/26/2014CN103675398A Method for measuring NMOS (N-channel Metal Oxide Semiconductor) threshold voltage
03/26/2014CN103675397A Magnetic kinetic energy output testing device
03/26/2014CN103675396A Leak current detector for photovoltaic inverter
03/26/2014CN103675395A Detection system and detection method for detecting current of voltage-stabilized component
03/26/2014CN103675394A Compensating circuit used for measuring alternating voltage and provided with programmable capacitor array
03/26/2014CN103675393A Ripple current test device for lamp
03/26/2014CN103675391A Radial analyzer type optical voltage sensor
03/26/2014CN103675390A Radial analyzer type magneto-optical film current sensor
03/26/2014CN103674566A Automobile starting monitoring method based on maximum peak current
03/26/2014CN103654734A Medical detection system
03/26/2014CN103653510A Insulated alarm shoe
03/26/2014CN102981036B Testing method of multi-output power equipment
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