171501 ⎘
Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of ac into dc
Sub-classes:ELECTROMAGNETIC ENERGY CHARGING CLAMP METER
#2APPARATUS AND METHOD FOR CONTROLLING PHASE OF MEASUREMENT WAVEFORM OF MU
#3SIGMA-DELTA MODULATOR WITH RESIDUE CONVERTER FOR LOW-OFFSET MEASUREMENT SYSTEM
#4SYSTEM INCLUDING MULTIFUNCTIONAL DIRECT CURRENT POWER QUALITY METER AND OPERATING METHOD THEREOF
#5SYSTEM AND METHOD FOR PRECISION CURRENT AND EFFICIENCY DETERMINATION IN A POWER SYSTEM
#6DEVICE & METHOD FOR MEASURING LEAKAGE CURRENT
#7CORDLESS VACUUM CLEANER ADOPTING OVERHEATING PROTECTION METHOD
#8POWER RECEPTION APPARATUS AND RECEIVED POWER ESTIMATION METHOD
#9HYBRID CURRENT SENSE SYSTEM
#10System and method for verifying alternating current (AC)/direct current (DC) conversion of ultralow-frequency voltage based on quantum technology
#11POWER SUPPLY CONTROL SYSTEMS AND METHODS
#12Grounding Assurance and Voltage-to-Patient Detection for Patient Safety
#13Input power monitoring circuit
#14Two-temperature trimming for a voltage reference with reduced quiescent current
#15Precision dynamic range expansion for current measurement
#16On resistance current sensing for power conversion devices
#17Charge mode control for power factor correction circuit
#18ADAPTER AND CHARGING METHOD
#19Method for measuring current and measurement apparatus
#20Leakage compensation technique for current sensor
#21DC signal measurement and battery formation/testing
#22Electrostatic capacitance sensor
#23Current sense multi-chip module
#24Detection apparatus for unbalanced DC link capacitor voltage
#25System for detecting a drop in voltage of an AC power supply
#26High voltage three phase current and voltage sensor assembly system without ground connection and method
#27Current measurement in power-gated microprocessors
#28Self-calibration method for self-powered single CT current sensor
#29Electrical signal measurement using subdivision
#30DC power rail probes and measurement methods
#31Self calibration by signal injection
#32Self calibration by double signal sampling
#33Power supply control systems and methods
#34SYSTEM FOR PRECISION MEASUREMENT OF ELECTRICAL CURRENT
#35Apparatus for performing an extracorporeal blood treatment
#36Method and system for measuring electrical quantities
#37Relay diagnosis circuit
#38Modulating input device having a full wave rectifier
#39Relay-welding detection device and detection method
#40Intelligent lighting control power measurement apparatuses, systems, and methods
#41AC voltage detection device, image forming apparatus, and industrial machine
#42Proving unit for use with electrical test tools
#43Arc-extinguishing power device driving apparatus and arc extinguishing apparatus
#44Discharge device, power supply apparatus, and discharge method with power supply cut-off detection and capacitor discharge
#45VOLTAGE DETECTING DEVICE, TEMPERATURE DETECTING DEVICE HAVING THE SAME, VOLTAGE DETECTING METHOD, AND TEMPERATURE DETECTING METHOD HAVING THE SAME
#46Apparatus for performing an extracorporeal blood treatment
#47Current detection apparatus and power conversion apparatus
#48Method and system for estimating RMS of AC voltage
#49Power conversion device
#50Voltage detection circuit and a method of detecting voltage changes
#51LOSS-PHASE LACK-VOLTAGE DETECTION CIRCUIT FOR THREE-PHASE INPUT POWER
#52Voltage detecting circuit and power amplifier
#53Apparatus for detecting noise in power supply of PLC analogue input and output module
#54Log-linear power detector
#55Methods and devices for detecting the input voltage and discharging the residuevoltage
#56Method and apparatus for metering a voltage signal
#57Current sampling method and current sampling apparatus for isolated power converter
#58METHOD AND SYSTEM FOR MONITORING EQUIPMENT AT MEDIUM VOLTAGE
#59Method and device for measuring a current flowing through a switch
#60Methods and devices for AC current sources, precision current transducers and detectors
#61Branch Circuit Monitor
#62Voltage monitoring circuit
#63System comprising a probe and a measuring device
#64Power conversion device including abnormality detection function of LC filter
#65DETECTION DEVICE AND METHOD FOR ELECTRONIC DEVICE
#66Power line takeoff clamp assembly
#67Branch circuit monitor
#68CURRENT DETECTION DEVICE FOR MULTI-SENSOR ARRAY
#69Circuit arrangement and method for determining a current in a circuit arrangement
#70Web based smart sensor network tracking and monitoring system
#71Power measurement circuit
#72Current sensing circuit and control circuit thereof and power converter circuit
#73Dynamic improvement in RMS to DC converters
#74AC voltage detection circuit, heater control device and image forming device
#75Schottky Diode Radio Frequency Detector Probe With Amplitude Linearity Compensation
#76Systems, methods, and apparatus for sensing AC voltage
#77System for measuring current and method of making same
#78Isolated Current Sensor
#79ELECTRIC CURRENT MEASURING DEVICE, ELECTRIC CURRENT MEASURING METHOD, AND ELECTRIC CURRENT MEASURING PROGRAM
#80Full wave current sense rectifier
#81Power measurement circuit
#82Extended range RMS-DC converter
#83Web based smart sensor network tracking and monitoring system
#84Power line takeoff clamp assembly
#85Signal-processing circuit, in particular operating as a rectifier and peak detector, with active elements and differential inputs
#86Extended range RMS-DC converter
#87Range resistors for AC-DC transfer measurements
#88Online testing of secondary power unit