| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 10/05/2000 | CA2380688A1 Method and apparatus for controlling pulse width modulation device |
| 10/04/2000 | EP1041718A2 A low power adjustable input threshold circuit |
| 10/04/2000 | EP1041694A2 Capacity leveling circuit for a battery group |
| 10/04/2000 | EP1040728A1 Peak to peak signal detector for audio system |
| 10/04/2000 | CN2399733Y Combined sensor for high voltage hot-line indicator |
| 10/03/2000 | US6128584 System and method for frequency compensation in an energy meter |
| 10/03/2000 | US6127854 Differential comparator with stable switching threshold |
| 10/03/2000 | US6127746 Method of controlling the switching DI/DT and DV/DT of a MOS-gated power transistor |
| 09/28/2000 | WO2000057197A1 Method for monitoring a substantially direct current flow in a load |
| 09/28/2000 | DE19913338A1 Multi-path HF diode rectifier circuit with at least one rectifier diode and at least one charging capacitor; uses output from rectifier circuit that is loaded by same relative temperature coefficient resistance of rectifier diode |
| 09/28/2000 | CA2366539A1 Method for monitoring a substantially direct current flow in a load |
| 09/27/2000 | EP1039304A2 Measuring process for a high voltage lead-through and related device |
| 09/27/2000 | CN2398637Y Apparatus for detecting voltage vehicle circuit and electric equipment |
| 09/26/2000 | US6124798 Alarm device designed to warn of danger of hitting high voltage power line by crane in motion |
| 09/26/2000 | CA2015872C Device for monitoring a variable electrical signal and component for such a device |
| 09/21/2000 | DE19909609C1 Current source power characteristic measuring method e.g. for solar module, uses offset measurement of voltage across load capacitor and capacitor charging current |
| 09/21/2000 | DE19906276A1 Verfahren und Strommeßmodul zur Stromüberwachung in einem Stromversorgungssystem And current measuring method for power control in a power supply system |
| 09/20/2000 | EP1037056A1 Current sensor |
| 09/20/2000 | CN2397496Y All-weather AC high voltage acousto-optic electroscope |
| 09/20/2000 | CN2397495Y Plug-type AC voltage digital display meter |
| 09/19/2000 | US6121799 Interleaved digital peak detector |
| 09/19/2000 | US6121766 Current sensor assemblies |
| 09/19/2000 | CA2255091C Voltage indicator using serial comparison voltage measurement |
| 09/14/2000 | WO2000054063A1 Device and method for measuring an electric current |
| 09/14/2000 | WO2000054062A1 Low error, switchable measurement lead detect circuit |
| 09/14/2000 | DE19908635A1 Anordnung zum Erfassen des Stromes durch einen Meßwiderstand eines Laststromkreises Means for sensing the current through a sense resistor of a load circuit |
| 09/13/2000 | EP1034594A1 Energy management system and method |
| 09/13/2000 | CN1266202A Video camera and warning method thereof |
| 09/12/2000 | US6118315 Power-on-reset circuit providing protection against power supply interruptions |
| 09/12/2000 | US6118295 Power supply voltage detection device |
| 09/12/2000 | US6118275 Method and apparatus for measuring battery capacity using voltage response signal based on pulse current |
| 09/08/2000 | WO2000052482A2 Arrangement for detecting the current by means of a precision resistor of a load current circuit |
| 09/08/2000 | WO2000017853A9 Multi-pulse sampling of signals using force sampling |
| 09/07/2000 | DE19905053A1 Komparatorschaltung Comparator |
| 09/06/2000 | EP1032842A1 Device having processor means and having undervoltage detection means |
| 09/06/2000 | CN2395280Y Multifunction test pile for buried metal pipeline cathode protection |
| 09/06/2000 | CN1265742A Method for detecting direction of rotation in three-phase networks, use of said method and pertaining digital overload relay |
| 09/06/2000 | CN1265479A DC-DC inverter having inductive current test and related method |
| 09/05/2000 | US6115675 Double interpolation anti-skew compensation of sampled analog data points in a protective relay |
| 09/05/2000 | US6114859 Harmonic characteristic measuring method and harmonic characteristic measuring apparatus |
| 09/05/2000 | US6114846 Optical measuring method and device for measuring a magnetic alternating field with an expanded measuring range and good linearity |
| 08/31/2000 | DE19903557C1 Verfahren zum Messen der Schwellenspannung eines Komparators und Anwendung dieses Verfahrens A method for measuring the threshold voltage of a comparator and applying this method |
| 08/30/2000 | EP1032198A2 A video camera and warning method thereof |
| 08/30/2000 | EP1031070A1 Device and method for monitoring a signal |
| 08/30/2000 | CN2394231Y Voltage tester with audio and video indicator |
| 08/30/2000 | CN2394230Y Voltage sampling measurer with load current compensation |
| 08/30/2000 | CN1265197A Electrical tester for small motor vehicles |
| 08/30/2000 | CN1264956A Multi-phase AC zero-cross rectifier and power supply phase loss monitor using it |
| 08/29/2000 | US6112136 Software management of an intelligent power conditioner with backup system option employing trend analysis for early prediction of ac power line failure |
| 08/29/2000 | US6111388 Charge and discharge control circuit |
| 08/29/2000 | CA2152220C Monitoring device secured to power distribution system conductors |
| 08/24/2000 | DE10007983A1 Circuit for measuring power currents circuit for measuring power currents for burn-in test; sets current measurement circuit and power supply circuit for high currents and measurement and power supply circuit for weak currents |
| 08/23/2000 | EP1030185A2 Process and means for monitoring the current in a power distribution network |
| 08/23/2000 | EP1030184A1 Analyzer for a short and single radiation pulse |
| 08/23/2000 | EP1029248A1 Current measuring device and telephone terminal using such a current measuring device |
| 08/23/2000 | EP1029247A1 Improvements relating to current indicators |
| 08/23/2000 | CN2393105Y On-line high-voltage electric indiator |
| 08/23/2000 | CN2393104Y Super-thin type ac. digital meter |
| 08/22/2000 | US6107840 Method and apparatus for eliminating asymmetry error in servo de-modulation using peak-to-peak detection of servo burst amplitudes |
| 08/22/2000 | US6107802 Battery pack with monitoring function utilizing association with a battery charging system |
| 08/22/2000 | US6107777 Circuit for causing a voltage step in a multi-cell battery |
| 08/17/2000 | WO2000048315A1 Comparator circuit |
| 08/17/2000 | WO2000048149A1 Modular power quality monitoring device |
| 08/16/2000 | EP1028526A2 Switching device with weak-current detecting function |
| 08/16/2000 | EP1027612A1 Method and measuring unit for verifying the presence of a neutral conductor connection between a four wire system and a measuring unit |
| 08/15/2000 | US6104968 Programmable supervisory circuit and applications therefore |
| 08/15/2000 | US6104303 Battery detecting device for a radio pager |
| 08/09/2000 | EP1024985A1 Circuit configuration to monitor a regulated output voltage in a motor vehicle |
| 08/09/2000 | EP0934533B1 Switching arrangement for monitoring leakage current |
| 08/09/2000 | CN2391205Y Automatic pole exchange apparatus with electric current test feedback function |
| 08/08/2000 | US6100679 Voltage indicating instrument |
| 08/03/2000 | WO2000007030A9 Particle beam current monitoring technique |
| 08/02/2000 | EP1024370A2 Procedure for measuring the threshold voltage of a comparator and an application of this procedure |
| 08/02/2000 | EP1023773A1 Circuit for regulating the current supplied to an electromechanical component in a motor vehicle |
| 08/02/2000 | CN1261959A Electric current pick-up shoe |
| 08/01/2000 | US6097192 Method for initializing short time and groundfault protection heat index accumulators in a trip unit |
| 07/27/2000 | WO2000043798A1 Voltage indicator for indicating that the voltage of a battery passes a given value |
| 07/27/2000 | WO2000017853A3 Multi-pulse sampling of signals using force sampling |
| 07/25/2000 | US6094622 System and method for automatically determining the electrical energy service type to which an energy meter is connected |
| 07/25/2000 | US6094330 Circuit interrupter having improved current sensing apparatus |
| 07/25/2000 | US6094092 Overcurrent detection circuit |
| 07/25/2000 | US6094044 AC current sensor having high accuracy and large bandwidth |
| 07/25/2000 | US6092428 Device for determining the phase component of a conductive medium in a duct |
| 07/20/2000 | WO2000042524A1 Measurement scale for non-uniform data sampling in n dimensions |
| 07/19/2000 | EP1019745A1 Fiber optics apparatus and method for accurate current sensing |
| 07/19/2000 | EP1015894A4 Electrical tester for small motor vehicles |
| 07/19/2000 | CN2388605Y Induction high-voltage potential indicator |
| 07/19/2000 | CN2388604Y Switchhouse power fault radio paging alarm device |
| 07/19/2000 | CN1260880A Method and apparatus for indicating alternating voltage |
| 07/18/2000 | US6091268 Potential detecting circuit and semiconductor integrated circuit |
| 07/18/2000 | US6091226 Voltage judgment circuit and battery cell pack having the same |
| 07/18/2000 | US6091223 Contactor monitor for charging stations |
| 07/18/2000 | CA2198949C Fault powered fault indicator having timed reset |
| 07/18/2000 | CA2139092C Receiving system having a large dynamic range |
| 07/13/2000 | WO2000040976A1 Utility metering system having waveform capture for power quality monitoring |
| 07/12/2000 | EP1018675A2 Power supply device, control method for the power supply device, portable electronic device, timepiece, and control method for the timepiece |
| 07/12/2000 | EP1018022A2 Energy meter with power quality monitoring and diagnostic systems |
| 07/12/2000 | CN2387545Y 330KV-500 KV portable double-sounding double-light high voltage a. c. electroscope |
| 07/11/2000 | US6087838 Signal processing circuit for electro-optic probe |
| 07/11/2000 | US6087825 Waveform sampling apparatus |