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Patent Searching and Data


Matches 1 - 50 out of 2,196

Document Document Title
WO/2020/242163A1
A grid voltage phase detection device of the present invention may comprise: a d-q transformation unit which receives a three-phase signal and calculates same to become a d-axis signal and a q-axis signal; a phase signal calculation unit...  
WO/2020/204819A3
This document describes a differential phase quantizer comprising an edge collision handler module and a bi-directional counter. In particular, the edge collision handler is configured to detect and remove collided edges from positive an...  
WO/2020/198142A1
A method of determining the topology of a portion of the electrical distribution grid such as a feeder based on voltage and current measurements. The method employs Bayesian-based topology detection, where voltage and current data is mea...  
WO/2020/183489A1
The invention discloses a method for measuring impedance of a system under test. The method includes multiple, high bandwidth, short duration chirp signals having dissimilar phase to estimate impedance. The method includes generating at ...  
WO/2020/152400A1
Disclosed is a method for detecting the phase (Φ1) of an analogue signal (SA1) via a hybrid coupler (CH1) operating in a power combiner mode, the hybrid coupler (CH1) comprising a first input (BE1) intended to receive the analogue signa...  
WO/2020/146227A1
A method and apparatus provide an improved way to monitor a circuit for deterioration and obtain an advance warning of the deterioration so that action can be taken before the circuit breaker may trip for the circuit. The method establis...  
WO/2020/105844A1
The present invention relates to an earth leakage circuit breaker and a method for controlling the earth leakage breaker, wherein the earth leakage breaker is formed between three-phase electrical lines and a single-phase load connected ...  
WO/2020/078291A1
A method and device for improving phase measurement accuracy, the method comprising: receiving a measurement signal (101); performing frequency domain transformation on the measurement signal to obtain a frequency domain measurement sequ...  
WO/2020/078927A1
The invention relates to an architecture of the signal processing device comprising a Frequency Multiplying Device, analogue-to-digital conversion unit, memory and a signal processing unit that can ensure proper synchronization with the ...  
WO/2020/043012A1
It discloses a signal skew measurement method for integrated circuit, a medium, and an electronic device. The method comprises: by a test machine, acquiring a first signal and a second signal output by an IC, respectively performing unde...  
WO/2020/028314A1
A system and method for phase and gain calibration of a current sensor system (11). The system comprises a microcontroller (22) configured to execute software in an energy measurement component (23) and a calibration computer (12) having...  
WO/2020/021592A1
This invention makes it possible to measure a current in synchronization with a voltage without measuring the voltage. A device having a prescribed current pattern that appears in synchronization with a current frequency is connected to ...  
WO/2020/022255A1
The present invention provides a measuring device capable of generating, from a measured alternating current waveform, an alternating current voltage waveform corresponding to the alternating current waveform. The measuring device includ...  
WO/2020/021600A1
This invention makes it possible to analyze a current waveform measured without measuring voltage. In this invention, an AC current waveform measured using an ammeter is converted to a frequency domain through a Fourier transform, the ov...  
WO/2020/021598A1
This invention makes it possible to analyze a current waveform measured without measuring voltage. This invention comprises a means for connecting a device having a prescribed current pattern that appears in synchronization with a voltag...  
WO/2020/007975A1
This system (1) for determining at least one datum corresponding to a measurement of a characteristic of a medium by at least one passive sensor (2) devoid of electrical power supply comprises: - a device (4) for generating radio-frequen...  
WO/2019/228540A1
A synchronized phasor measurement method and system having an added Hamming window, relating to the technical field of synchronized phasor measurement for electric power systems. Using fixed-interval sampling to determine sample points a...  
WO/2019/166217A1
The present disclosure relates to a method and system for estimating a grid frequency or grid phase angle of an electrical power distribution system in which instantaneous voltages output by the electrical power distribution system are s...  
WO/2019/158312A1
The invention relates to a method using a portable appliance (11), allowing the cumulative determination of the phase of the conductors (5) of a polyphase network (100) for the distribution of electrical current. To this end, the communi...  
WO/2019/158310A1
A method makes it possible to determine a phase of a conductor (5) that belongs to a polyphase electric power distribution network (100). To this end, the network has to be communicating in accordance with a power line communication (PLC...  
WO/2019/117435A1
Disclosed are a zero-phase current transformer for measuring a three-phase four-wire live wire insulation resistance, and a live wire insulation resistance measurement device. The present invention is implemented through a process in whi...  
WO/2019/101840A1
The invention describes an integrated switch mode power supply device comprising a switch mode regulator having a switching circuit coupled to an input voltage source to generate an output voltage from the input voltage and the switching...  
WO/2019/055072A1
System and methods for determining loading on supply lines of a three-phase power distribution system. Load meters are connected to the supply lines to receive power. A feeder meter is connected to a supply line designated the reference ...  
WO/2018/230769A1
The present invention relates to an AMI system for performing phase detection and synchronization in an AMI communication network employing a relay communication scheme, and a method therefor. The AMI system for performing phase detectio...  
WO/2018/138785A1
Provided are a power-distribution-path phase-management-assistance method and power-distribution-path phase-management-assistance system that are capable of simplifying the phase management of a high-voltage power distribution path. At a...  
WO/2018/131769A1
The present invention relates to a device for controlling a power factor and a method for controlling a power factor which control a power factor by using phase control, and the present invention has an effect of performing power factor ...  
WO/2018/124467A1
The present specification relates to a motor control device and a control method for the motor control device, and to a motor control device which can reduce harmonics of input current by controlling an output of an inverter, and a contr...  
WO/2018/111581A1
A system and method for detecting a phase-to-ground fault in an AC electrical machine operates to receive measurements of three-phase voltages and currents provided to the AC electrical machine, compute at least one of a zero sequence co...  
WO/2018/094378A1
A device that is attached to portable solar panels so as to allow users to readily verify panel quality and performance. In one example implementation, a device may perform a self-test by measuring the illuminated I-V (current-voltage) c...  
WO/2018/080523A1
Example implementations described herein are directed to detecting similarity between anomalous events that are currently occurring or have previously occurred transmission power system based on phasor management unit (PMU) data to provi...  
WO/2018/067559A1
A payment reader includes a tuning circuit that provides a tuned transmission source signal to an antenna for transmission. A sense circuit coupled to the antenna provides a measured transmitted signal to a binary phase detection circuit...  
WO/2018/034514A1
The present invention relates to a method for measuring the amount of unburned carbon in coal ash, comprising the steps of: transmitting a signal having a predetermined frequency to coal ash; receiving a signal having passed through the ...  
WO/2017/212187A3
The invention relates to a system and method that provide an amplitude value (A) and a phase delay value (Φ) related to a sinusoidal signal to be measured (s(t)). For this purpose, phase values (ψk) of a reference signal (r(t)), at whi...  
WO/2017/216598A1
Current transducers are widely used in current measuring systems. They provide good isolation between the supply voltage and the measurement equipment. However they can introduce small phase errors which can become significant sources of...  
WO/2016/205217A8
A system and method is disclosed for measuring time of flight to an object. A transmitter transmits an electromagnetic signal and provides a reference signal corresponding to the electromagnetic signal. A receiver receives the electromag...  
WO/2017/212187A2
The invention relates to a system and method that provide an amplitude value (A) and a phase delay value (Φ) related to a sinusoidal signal to be measured (s(t)). For this purpose, phase values (ψk) of a reference signal (r(t)), at whi...  
WO/2017/207037A1
A meter apparatus (100) is proposed for determining parameters of an AC electric signal in first (L) and second (N) wires, the AC electric signal comprising an AC electric current (I AC ) and an AC electric voltage (V AC ). The meter app...  
WO/2017/200921A1
In an example, a system for determining a power factor of an electric device powered by an alternating current (AC) power is described. The system includes a current sensor configured to: (i) remotely sense, at a position external to the...  
WO/2017/194430A1
This application relates to a method for supervising a frequency of a main clock signal. The method comprises: measuring a plurality of first frequency values of the main clock signal based on an external time signal, measuring a plurali...  
WO/2017/191804A1
This phase measurement device is provided with: a count processor 4 that counts a zero crossing detection count C, which is the number of times a change in the sign of a digital signal has been detected; and a fraction processor 5 for ca...  
WO/2017/179858A1
Disclosed are a device and a method for monitoring a wireless power transmitter. A device for monitoring a wireless power transmitter, according to an embodiment, comprises: a level information detector for detecting voltage level inform...  
WO/2017/173998A1
A method for switch mode DC-AC converter driven oscillation system control, which can make the system always work on "square wave driving, soft-switching and resonant"conditions at the same time so that the system efficiency and power tr...  
WO/2017/155179A1
Disclosed are an electronic impedance tuning apparatus for measuring a load-pull of a mobile amplifier and an electronic impedance tuning method therefor. An electronic impedance tuning apparatus according to one embodiment of the presen...  
WO/2017/151263A1
Methods and circuitry are disclosed to produce a first signal representative of the AC voltage signal and a second signal representative of an AC current signal. The first and second signals may be combined with a clock signal to produce...  
WO/2017/127249A1
An electrical unit with modular hardware structure in which more complex and unsafe portions of the device are restricted for access by a qualified electrician only, whereas safe areas are made accessible to a non-electrician user, such ...  
WO/2017/120234A1
An amplitude detector has a phase shifter such as one using an analog differentiator and an adjustable gain stage, or one using a determinable delay, the phase shifter coupled to shift phase of an input signal to the amplitude detection ...  
WO/2017/084905A1
A method for estimating a fundamental component (A) of an AC voltage ( V pcc ) comprises: receiving a timely varying measurement signal of the AC voltage ( V pcc ); parametrizing a fundamental component (A) of the AC voltage ( V pcc ), t...  
WO/2017/066322A3
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for detecting characteristics of an input signal. One aspect includes a first finite input response (FIR) filter, a second FIR filter, and...  
WO/2017/066322A2
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for detecting characteristics of an input signal. One aspect includes a first finite input response (FIR) filter, a second FIR filter, and...  
WO/2017/060908A1
A method of amplifying a phase shift, comprises: receiving an input signal in response to an output signal; generating a reference signal; varying a modulation of at least one of the signals such that a ratio between modulation amplitude...  

Matches 1 - 50 out of 2,196