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