ClassID:

171455

G01R19/0023 - CPC Classification

Classification description:

Arrangements for measuring currents or voltages or for indicating presence or sign thereof Measuring currents or voltages from sources with high internal resistance by means of measuring circuits with high input impedance, e.g. OP-amplifiers

Recent Application in this class:
#1
20260098879
2026-04-09

CURRENT SENSE AMPLIFIER

#2
20260063683
2026-03-05

DEVICE FOR POWER SUPPLYING A LOAD AND MEASURING THE CURRENT CONSUMPTION OF THE LOAD

#3
20260050014
2026-02-19

CURRENT SENSING DEVICE AND ELECTRONIC DEVICE

#4
20250369784
2025-12-04

EXCITATION CIRCUIT OF ELECTROMAGNETIC FLOWMETER

#5
20250355025
2025-11-20

CURRENT SENSOR SYSTEMS

#6
20250341554
2025-11-06

ELECTRICAL ASSEMBLY

#7
20250306064
2025-10-02

SYSTEMS AND METHODS FOR DETECTING CURRENTS OF POWER MANAGEMENT SYSTEMS

#8
20250283922
2025-09-11

CURRENT SENSING CIRCUIT ADAPTABLE TO MOSFET CIRCUITS

#9
20250237679
2025-07-24

CURRENT SENSE AMPLIFIER

#10
20250052786
2025-02-13

CURRENT SENSING SYSTEM

#11
20250035679
2025-01-30

ACTIVE PROBE FOR MEASURING VOLTAGE AT HIGH IMPEDANCES

#12
20240426878
2024-12-26

Current Measurement Circuit and Method

#13
20240421778
2024-12-19

AMPLIFIER, AMPLIFICATION CIRCUIT, AND CURRENT DETECTION DEVICE

#14
20240329099
2024-10-03

VOLTAGE AND CURRENT SENSE CIRCUITS FOR MEASURING A LOAD CONNECTED TO A POWER AMPLIFIER

#15
20240319232
2024-09-26

CURRENT SENSOR

#16
20240313719
2024-09-19

CHOPPER-STABILIZED AMPLIFIER

#17
20240305311
2024-09-12

Analog to pulse width modulation (PWM) circuit

#18
20240219437
2024-07-04

IN MEMORY COMPUTING (IMC) MEMORY DEVICE AND METHOD

#19
20240171188
2024-05-23

TECHNIQUES FOR REDUCED NOISE CAPACITANCE-TO-VOLTAGE CONVERTER

#20
20240103046
2024-03-28

METHOD FOR SENSING A CURRENT FLOWING IN A TRANSISTOR DRIVING A LOAD, AND CORRESPONDING CIRCUIT ARRANGEMENT FOR SENSING

#21
20240085246
2024-03-14

MEASUREMENT CIRCUIT AND ELECTRONIC EQUIPMENT

#22
20240069073
2024-02-29

Multi-level voltage detector

#23
20240003941
2024-01-04

CURRENT SENSING CIRCUIT WITH INTEGRATED RESISTOR AND DUAL SENSE AMPLIFIERS

#24
20230296651
2023-09-21

DEVICE FOR POWER SUPPLYING A LOAD AND MEASURING THE CURRENT CONSUMPTION OF THE LOAD

#25
20230280389
2023-09-07

Insulation monitoring device using triangular wave and method for controlling thereof

#26
20230137935
2023-05-04

Voltage-to-current architecture and error

#27
20230122973
2023-04-20

Open-wire detection for analog differential inputs using an alternating current (AC) bias

#28
20230113379
2023-04-13

Voltage current conversion device

#29
20230097341
2023-03-30

Measuring circuit of the voltage of an electric machine, system and process for calibrating electric machines using such circuit

#30
20230003765
2023-01-05

Busbar as current sensor

#31
20220397591
2022-12-15

On resistance current sensing for power conversion devices

#32
20220317162
2022-10-06

Current detection circuit, circuit device, and solenoid control device

#33
20220276285
2022-09-01

Current sensing

#34
20220148769
2022-05-12

Current detection resistor

#35
20220128605
2022-04-28

Leakage compensation technique for current sensor

#36
20220065901
2022-03-03

Self-calibrated input voltage-agnostic replica-biased current sensing apparatus

#37
20220037177
2022-02-03

Electrostatic capacitance sensor

#38
20210278444
2021-09-09

Current detection circuit, current detection system, and method of adjusting current detection circuit

#39
20210231711
2021-07-29

Current sensor

#40
20210231710
2021-07-29

Voltage-to-current architecture and error correction schemes

#41
20210190834
2021-06-24

Current measurement device

#42
20210181242
2021-06-17

CURRENT SENSOR FOR BIOMEDICAL MEASUREMENTS

#43
20210072290
2021-03-11

Bidirectional sensor circuit

#44
20210063450
2021-03-04

SYSTEM FOR PRECISION MEASUREMENT OF ELECTRICAL CURRENT

#45
20210015984
2021-01-21

Apparatus for performing an extracorporeal blood treatment

#46
20200408810
2020-12-31

Current sensor and method

#47
20200300712
2020-09-24

Method for measuring heat generation distribution in honeycomb structure, system for measuring heat generation distribution in honeycomb structure, method for producing honeycomb structure, and method for producing electric heating type support

#48
20200292587
2020-09-17

Current sensing circuit

#49
20200271700
2020-08-27

Multi-level voltage detector

#50
20200271694
2020-08-27

Detection of loop resistance and leakage current in input/output (I/O) loop

#51
20200233015
2020-07-23

Current measuring apparatus

#52
20200225272
2020-07-16

Apparatus and method for detecting wiring short in substrate

#53
20200203985
2020-06-25

Voltage increasing and decreasing device for power storage apparatus and power storage apparatus

#54
20200182910
2020-06-11

Line post sensor

#55
20200166547
2020-05-28

Resistance measuring device and method

#56
20200161045
2020-05-21

Single input circuit for receiving output from a di/dt sensor or current transformer and circuit breaker including same

#57
20200150160
2020-05-14

Current sensing recovery for imaging systems and methods

#58
20200088767
2020-03-19

Voltage dividers

#59
20200052184
2020-02-13

Actuator and sensor device based on electroactive polymer

#60
20200041546
2020-02-06

Autoranging ammeter with fast dynamic response

#61
20190317137
2019-10-17

Circuit board

#62
20190312549
2019-10-10

Systems and methods for a current sense amplifier comprising a sample and hold circuit

#63
20190302152
2019-10-03

Current detector and current meter

#64
20190293696
2019-09-26

Predictive sample queueing for time-shared ADC in a multiphase PWM controller

#65
20190293695
2019-09-26

Method for sensing inductor current across range exceeding ADC dynamic range and PWM controller system including ADC therefor

#66
20190285716
2019-09-19

Method for calibrating current measurement device, current measurement method and device, display device

#67
20190204360
2019-07-04

Electronic amplification device, measurement apparatus and associated measurement method

#68
20190162765
2019-05-30

Electrical signal measurement device using reference signal

#69
20180262171
2018-09-13

Circuit for automatically measuring gain of built-in trans-impedance amplifier

#70
20180147335
2018-05-31

Apparatus for performing an extracorporeal blood treatment

#71
20180003741
2018-01-04

Nested ammeter

#72
20170336456
2017-11-23

Method for detecting surface electric field distribution of nanostructures

#73
20170336455
2017-11-23

Method for calculating surface electric field distribution of nanostructures

#74
20170316683
2017-11-02

Modular Sensor Systems

#75
20160291065
2016-10-06

Virtual ground sensing circuit for high impedance voltage sensors

#76
20160262703
2016-09-15

Ultra high impedance sensor with applications in neurosensing

#77
20160212556
2016-07-21

DC impedance detection circuit and method for speaker

#78
20160154032
2016-06-02

Current measurement circuit

#79
20160028414
2016-01-28

Electrochemical sensing module

#80
20150346244
2015-12-03

Devices and methods of measuring gain of a voltage-controlled oscillator

#81
20150346241
2015-12-03

Broad-range current measurement using variable resistance

#82
20150333725
2015-11-19

Impedance matching element for voltage and/or current sensing devices

#83
20150323570
2015-11-12

Input current compensation during current measurement

#84
20150270840
2015-09-24

Current detection circuit and pile-up detection circuit

#85
20150268279
2015-09-24

VCO gain estimation by capacitive measurement

#86
20150268277
2015-09-24

Current sensor

#87
20150130484
2015-05-14

Active current measurement circuit and measurement device

#88
20150061637
2015-03-05

Negative voltage measurement

#89
20150054572
2015-02-26

Charge pump generator with direct voltage sensor

#90
20150054493
2015-02-26

Charge pump generator with direct voltage sensor

#91
20150028881
2015-01-29

Surface potential sensor and copying machine

#92
20150015333
2015-01-15

Differential measurements with a large common mode input voltage

#93
20150002136
2015-01-01

Measurement probe providing different levels of amplification for signals of different magnitude

#94
20140375338
2014-12-25

Integrated electric field sensor

#95
20140347061
2014-11-27

Electrostatic detecting circuit and method thereof

#96
20140139205
2014-05-22

Differential probe with common-mode offset

#97
20140139204
2014-05-22

Coupled heterogeneous devices for pH sensing

#98
20140111188
2014-04-24

Active shunt ammeter apparatus and method

#99
20130308152
2013-11-21

Power supply device and image forming apparatus having the same

#100
20130256550
2013-10-03

Self-heating electrometer for high pressure ion chamber for verification of temperature compensation

#101
20130009655
2013-01-10

Current sensor

#102
20130009628
2013-01-10

Integral value measuring circuit

#103
20120274360
2012-11-01

Switched capacitance voltage differential sensing circuit with near infinite input impedance

#104
20120249098
2012-10-04

Circuits and methods for current sensing

#105
20120086434
2012-04-12

Wide-dynamic range electrometer with a fast response

#106
20120075014
2012-03-29

Systems and methods for high-sensitivity detection of input bias current

#107
20110148393
2011-06-23

System and device for measuring voltage in a conductor

#108
20110012588
2011-01-20

Wide-dynamic range electrometer with a fast response

#109
20100253321
2010-10-07

Current integrator with wide dynamic range

#110
20100237936
2010-09-23

Amplifier circuit and magnetic sensor

#111
20100079204
2010-04-01

Switched-capacitor amplifier arrangement having a low input current

#112
20100066321
2010-03-18

Circuits and methods for current sensing

#113
20100039118
2010-02-18

Current measurement circuit and method of diagnosing faults in same

#114
20100019915
2010-01-28

Industrial universal electrometer

#115
20090309605
2009-12-17

Electric potential sensor

#116
20090289665
2009-11-26

Comparator

#117
20090167324
2009-07-02

Electric potential sensor

#118
20090122885
2009-05-14

Low noise differential charge amplifier for measuring discrete charges in noisy and corrosive environments

#119
20090096524
2009-04-16

Differential amplification circuit and manufacturing method thereof

#120
20090027113
2009-01-29

Reference voltage generating circuit and offset-compensated current-voltage converting circuit using the same

#121
20080303535
2008-12-11

Multi-pin CV measurement

#122
20080111560
2008-05-15

AC amplifier for precision measurement

#123
20080100300
2008-05-01

Electrostatic voltmeter

#124
20070216393
2007-09-20

Current-to-voltage detection circuit

#125
20070194803
2007-08-23

Probe holder for testing of a test device

#126
20060279293
2006-12-14

Apparatus for current sensing

#127
20060232303
2006-10-19

Sense amplifier for flash memory device

#128
20060208748
2006-09-21

Probe holder for testing of a test device

#129
20060125467
2006-06-15

Current-measuring circuit arrangement

#130
20050046438
2005-03-03

Sensing services and sensing circuits

#131
20050035777
2005-02-17

Probe holder for testing of a test device

#132
18748409
2024-11-26

Device and method for monitoring a turn-off capability

#133
17535579
2022-11-08

Voltage comparator and operation method thereof

#134
15720318
2018-05-08

Semiconductor devices for sensing voltages