Patents
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
10/2002
10/22/2002US6470283 Non-contact self-powered electric power monitor
10/22/2002US6469561 Rail to rail rectifying integrator
10/22/2002US6469547 Offset window detector
10/22/2002US6469519 Precision loop voltage detector for subscriber line interface circuit applications
10/22/2002US6469481 Parallel RC current detection circuit and DC/DC converter with a parallel RC current detection circuit
10/17/2002WO2002082107A1 Circuit for detecting leak from power supply
10/17/2002US20020152054 Peak time detecting apparatus and method
10/17/2002US20020149387 Test circuit and test method
10/17/2002US20020149356 Circuit for detecting a current passing through a consumer
10/16/2002EP1249706A2 Non-contact voltage measurement method and device, and related detection probe
10/16/2002EP0692876B1 Power-out reset system
10/16/2002CN1375061A Floating plate voltage monitor
10/16/2002CN1375060A Automatic monitoring of high voltage signals
10/15/2002US6466267 System for performing selective detection of image signal peaks and camera employing the system
10/15/2002US6466029 Power line testing device with signal generator and signal detector
10/15/2002US6466005 High resolution current sensing apparatus
10/15/2002US6466003 Microamp measurement for two-terminal digital meter
10/15/2002US6466002 Method for detecting a rotation direction in three-phase networks
10/10/2002WO2002080124A2 Audible alarm system to prevent earthing in high-voltage cells
10/10/2002WO2002079787A1 Impulsive transient detection and data acquisition coprocessor
10/10/2002WO2002041585A3 Intelligent appliance home network
10/10/2002US20020145517 Power system waveform capture
10/10/2002US20020145484 Ultrafast sampler with coaxial transition
10/10/2002US20020145415 Method and apparatus for determining the instantaneous power of a sinusoidal signal
10/10/2002US20020145406 Secondary battery protection circuit capable of reducing time for functional test
10/10/2002DE10149390C1 Controller has current detector for determining current in load circuit before measurement pause that detects length of free-running period in measurement pause, computes current from this
10/09/2002EP1247304A2 Shunt resistance device for monitoring battery state of charge
10/09/2002EP1247110A1 Single ended measurement method and system for determining subscriber loop make up
10/09/2002EP1102999A4 Method and apparatus using an infrared laser probe for measuring voltages directly in an integrated circuit
10/09/2002CN1092335C Voltage detecting circuit, power on/off resetting circuit and semiconductor device
10/08/2002US6462967 Power supply device, control method for the power supply device, portable electronic device, timepiece, and control method for the timepiece
10/08/2002US6462559 Digital envelope detector
10/08/2002US6462558 Electronic circuit for monitoring voltage variation
10/08/2002US6462510 Battery voltage detector
10/03/2002WO2002078168A1 Method of detecting motor current and motor control device
10/03/2002US20020140402 Voltage detecting circuit
10/02/2002EP1244920A1 Sensor for measuring a direct current and a measuring method
10/02/2002DE10112217A1 Determination of the output current of a generator, especially a motor vehicle generator with an electronic diode to provide an equivalent resistance to the generator so that its output current can be accurately measured
10/02/2002DE10105982A1 Verfahren zur Auswertung eines Messwertes und zugehörige Schaltungsanordnung Method for evaluating a measured value and associated circuitry
10/02/2002CN2514354Y Electrostatic grounding monitor
10/01/2002US6459997 Method for event analysis at an intelligent electronic device
10/01/2002US6459255 Current detector
09/2002
09/26/2002WO2002075332A1 Impedance monitoring system and method
09/26/2002US20020138719 Oscilloscope panel capture and implementation
09/26/2002US20020135380 Low impedance diagnostic for gun driver and method
09/26/2002US20020135352 Computer multimeter
09/25/2002EP1242828A2 Rms-dc converter having gain stages with variable weighting coefficients
09/25/2002EP1015858B1 Method and device for determining the charging current of an accumulator
09/25/2002CN2513114Y Current meter
09/24/2002US6456947 Digital current differential system
09/24/2002US6456091 Power line conditioner with voltage and current amplitude tracking
09/24/2002US6456070 Method and device for measuring intensity of electromagnetic field, method and device for measuring current-voltage distribution, and method for judging quality of electronic device, and electronic device therefor
09/24/2002US6456058 Temperature stable integrated circuit full wave level detector incorporating a single operational amplifier stage design
09/24/2002CA2117400C Device for the vector measurement of a ultra-high frequency signals of the same angular frequency of the six port junction type
09/19/2002WO2002073221A2 Measured value acquisition and processing unit for small measuring signals
09/19/2002WO2001077698A3 Power line testing device with signal generator and signal detector
09/19/2002US20020133748 Circuit for measuring on-chip power supply integrity
09/19/2002DE10107811A1 Vorrichtung, Strommesser und Kraftfahrzeug Device, ammeter and motor vehicle
09/19/2002CA2440774A1 Measurement value detection and processing unit for small measurement signals
09/17/2002US6452414 Low current power-on sense circuit
09/17/2002US6452405 Method and apparatus for calibrating a current sensing system
09/17/2002US6452373 Transient voltage recorder
09/17/2002CA2224993C Revenue accuracy meter having power quality measurement and method of measuring power quality
09/17/2002CA2160472C Optical method of measuring an alternating electrical current, including temperature compensation, and a device for carrying out the method
09/12/2002US20020128006 Radio frequency (RF) detector with a light emitting diode (LED) indicator
09/12/2002US20020125942 Comparator circuit
09/12/2002US20020125916 Universal CMOS single input, low swing sense amplifier without reference voltage
09/12/2002US20020125876 Optical-voltage sensor
09/12/2002DE10150404A1 Apparat und Verfahren zum Testen einer integrierten Halbleiterschaltung Apparatus and method for testing a semiconductor integrated circuit
09/11/2002EP1239290A2 Apparatus for detecting voltage and current status in electric power system
09/11/2002EP0991950B1 Current sensor
09/11/2002CN1369064A Method and apparatus for detecting failed thyristor
09/11/2002CN1368788A Power change device
09/11/2002CN1368641A Low-voltage reset circuit device without influence from temp and system
09/10/2002US6448823 Tunable circuit for detection of negative voltages
09/10/2002US6448821 Comparator circuit for comparing differential input signal with reference signal and method
09/05/2002US20020122183 Sagnac interferometer current sensor
09/05/2002US20020121916 Semiconductor tester, semiconductor integrated circuit and semiconductor testing method
09/05/2002US20020121893 Device for low-power current detection
09/05/2002DE10109833A1 Vorrichtung zur leistungsarmen Stromerfassung Device for low-power current sense
09/04/2002EP1237006A2 Low loss current measuring device
09/04/2002EP1236280A1 Digital peak detector with noise threshold and method
09/04/2002CN1367390A Impulse current signal detection device
09/03/2002US6445305 CMOS low battery voltage detector
09/03/2002US6445244 Current measuring methods
08/2002
08/29/2002WO2002067430A1 Interleave ad conversion system waveform digitizer device
08/29/2002WO2002067293A2 Microelectromechanical systems (mems) device including an analog or a digital
08/29/2002WO2002066996A1 Device, amperemeter and motor vehicle
08/29/2002WO2002048721A3 Method and device for monitoring the function of an output stage with pulse width modulation
08/29/2002US20020118020 Input circuit with function for detecting abnormality in input circuit and control device having the same
08/28/2002EP1235348A1 Hysteresis circuit
08/28/2002CN1366612A Current measuring apparatus for battery
08/28/2002CN1366189A 电池状态监测电路以及电池装置 Battery status monitor circuit and battery device
08/28/2002CN1089959C 电池充电电路 The battery charging circuit
08/27/2002US6442049 Power conversion device with power source voltage drop detection unit
08/27/2002US6441604 Apparatus and method for sensing electric current based on electric signal from magneto-electric conversion element
08/27/2002US6441599 Reference point locator for residential and commercial construction
08/22/2002WO2002065144A1 Power metering module
08/22/2002WO2002065143A1 Current sensor and overload current protective device comprising the same
08/22/2002WO2002065142A1 Method for evaluating a measuring signal and corresponding circuit arrangement