| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 09/10/2004 | WO2004077077A1 Method for measuring the current consumption of an electric radiator in a vehicle ventilation, heating or air conditioning system |
| 09/09/2004 | US20040176919 Methods and apparatuses for peak detection among multiple signals |
| 09/09/2004 | US20040174308 Electricity detecting and testing device |
| 09/09/2004 | US20040174206 Voltage detecting circuit |
| 09/09/2004 | US20040174190 Latched sense amplifier with full range differential input voltage |
| 09/09/2004 | US20040174170 Method and apparatus for measuring voltage of battery module of electric vehicle |
| 09/09/2004 | DE202004008636U1 Current and voltage sensing component diagnosis unit for car safety components has compact ergonomic hand held housing with display, control button and probes |
| 09/09/2004 | DE19739322B4 Vorrichtung zum Ermitteln eines durch einen elektrischen Verbraucher fließenden Stromes Means for detecting a current flowing through an electrical load current |
| 09/09/2004 | DE10306620A1 Integrated test circuit for testing integrated semiconductor circuits tests multiple internal voltages in an integrated circuit |
| 09/08/2004 | EP1455428A2 Electronic tripping device for low-voltage circuit-breakers |
| 09/08/2004 | CN1527947A Audible alarm system to prevent earthing in high-voltage cells |
| 09/08/2004 | CN1527441A 多功能电子监测插座 Multifunction electronic monitoring socket |
| 09/08/2004 | CN1165774C Method and apparatus for real time measurement of three phase electrical parameters |
| 09/08/2004 | CN1165772C Sensor for detecting high-frequency oscillations of voltage and arrangement of sensor |
| 09/07/2004 | US6788114 Comparator with high-voltage inputs in an extended CMOS process for higher voltage levels |
| 09/07/2004 | US6788112 High performance dual-stage sense amplifier circuit |
| 09/07/2004 | US6788088 Semiconductor device equipped with current detection function |
| 09/07/2004 | US6788067 Device for and method of detecting residual current with resistive shunts |
| 09/07/2004 | US6788000 Distributed emergency lighting system having self-testing and diagnostic capabilities |
| 09/02/2004 | WO2004075401A1 System and method for reducing transfer function ripple in a logarithmic rms-to-dc converter |
| 09/02/2004 | WO2004075202A1 Voltage sensing circuit, semiconductor device, method for controlling voltage sensing circuit |
| 09/02/2004 | WO2004074850A2 Liquid-crystal voltage indicator |
| 09/02/2004 | US20040169533 Voltage detection circuit, power-on/off reset circuit, and semiconductor device |
| 09/01/2004 | EP1452879A1 Current detecting circuit and actuator driving apparatus |
| 09/01/2004 | EP1452878A1 Electric current sensor |
| 09/01/2004 | EP0650067B1 Electrooptic instrument |
| 09/01/2004 | CN2638072Y Micro electric current monitoring circuit |
| 09/01/2004 | CN2638071Y Reflection type sagnek interferometer full optical fiber electric current mulual induction device |
| 09/01/2004 | CN1165101C Apparatus and method for determining local short-circuit |
| 08/31/2004 | US6785620 Energy efficiency measuring system and reporting methods |
| 08/31/2004 | US6782969 Vehicle steering control system |
| 08/26/2004 | WO2004072663A1 Current monitoring system using bi-directional current sensor |
| 08/26/2004 | US20040166826 Method of forming an RF detector and structure therefor |
| 08/26/2004 | US20040164744 Abnormality detection apparatus of comparator |
| 08/26/2004 | DE10295886T5 Wellenform-Digitalisierungsmodul vom A/D- Umwandlungs-Verschachtelungstyp und Prüfvorrichtung Waveform digitizer module from the A / D conversion Verschachtelungstyp and Tester |
| 08/26/2004 | DE102004005776A1 Isolationsdetektionssystem für eine Anordnung aus mehreren Stapeln Isolation detection system for an assembly of several stacks |
| 08/25/2004 | EP1450169A1 Screwdiver having high electric isolation, indicator of the presence of a phase |
| 08/25/2004 | CN2636251Y Voltage/current on-line monitor |
| 08/25/2004 | CN2636250Y Rogowski coil current sensor for printed circuit board |
| 08/25/2004 | CN1523368A Integrated testing circuit in integrated circuit |
| 08/24/2004 | US6781385 Apparatus for detecting current direction in bridge circuits and method thereof |
| 08/19/2004 | US20040160244 Sense amplifier having synchronous reset or asynchronous reset capability |
| 08/19/2004 | US20040160229 Voltage detecting apparatus applicable to a combination battery |
| 08/19/2004 | US20040160227 Apparatus and method for determining the status of an electric power cable |
| 08/19/2004 | DE102004003963A1 Differentialer Hochspannungswandler zum Beispiel für ein PC-gesteuertes Messgerät Differential high-voltage transformer, for example, a PC-controlled measuring device |
| 08/18/2004 | EP1447671A1 Apparatus for monitoring an electric network |
| 08/18/2004 | EP1446837A2 Method for detecting currents in a semiconductor component with a multi-cell current sensor |
| 08/18/2004 | EP1446673A1 Binary voltage indicator |
| 08/18/2004 | CN2634488Y High voltage detection circuit |
| 08/18/2004 | CN2634487Y Distribution monitoring terminal |
| 08/18/2004 | CN1162712C Electron density measurement and control system using plasma-induced changes in the frequency of a microwave oscillator |
| 08/18/2004 | CN1162711C Instrument for measuring voltages of cell |
| 08/18/2004 | CN1162710C Non-contact electric current measuring instrument |
| 08/17/2004 | US6777959 Method of determining a resistive current |
| 08/17/2004 | US6777944 System for measuring battery current for electric vehicle |
| 08/12/2004 | WO2004044597A3 Device and method for determining the absence of application of stresses on polyphase electrical transmission lines |
| 08/12/2004 | US20040157091 Multi-stack isolation detection system |
| 08/12/2004 | US20040155682 High-speed cross-coupled sense amplifier |
| 08/12/2004 | US20040155662 Circuit arrangement for controlling and detecting the load current through a load |
| 08/12/2004 | DE202004009065U1 Short circuit indicator reset mechanism for monitoring power grid has moveable permanent magnet which resets display elements from signaling state to output state |
| 08/11/2004 | EP1062521B1 Simultaneous display of primary measurement values and derived parameters |
| 08/11/2004 | EP0904545B1 Current and voltage sensing |
| 08/11/2004 | CN2632684Y Non-loss current testing circuits |
| 08/11/2004 | CN1161620C Residual current detection device |
| 08/10/2004 | US6774680 Comparator including a differential transistor pair and a diode arrangement |
| 08/10/2004 | US6774658 Device testing using a holding-circuit |
| 08/10/2004 | US6774617 Peak detector for detecting a peak signal |
| 08/05/2004 | US20040150425 Output signal circuit capable of automatically detecting polarity |
| 08/05/2004 | US20040150370 Method for detecting slow and small changes of electrical signals |
| 08/05/2004 | DE19857327B4 Stromsensor mit Überstromerkennung Current sensor with overcurrent detection |
| 08/04/2004 | EP1443337A2 Electro-optic measuring instrument |
| 08/04/2004 | EP1443336A2 Method of detecting a branch with an earth fault |
| 08/04/2004 | EP1442511A1 Method and apparatus for near losslessly measuring inductor current |
| 08/04/2004 | EP1442309A2 Method and circuit for detecting a fault of semiconductor circuit elements and use thereof in electronic regulators of braking force and of dynamics movement of vehicles |
| 08/04/2004 | CN1518183A Overcurrent detecting circuit and its delay circuit |
| 08/04/2004 | CN1517714A High speed driving stage electric current detecting circuit |
| 08/04/2004 | CN1160577C Electric current pick-up shoe |
| 08/03/2004 | US6771170 Power system waveform capture |
| 08/03/2004 | US6771058 Apparatus and method for the measurement and monitoring of electrical power generation and transmission |
| 07/29/2004 | WO2003081573A3 Activity detector circuit |
| 07/29/2004 | US20040145391 High-frequency electrical signal sampling device |
| 07/29/2004 | US20040145373 Circuit arrangement and method for monitoring a current circuit |
| 07/28/2004 | CN1159590C Remote monitor method for instantaneous voltage dropping of electric power network |
| 07/28/2004 | CN1159589C NC signal mearsuring controller for power system |
| 07/28/2004 | CN1159588C Low-voltage reset circuit device without influence from temp and system |
| 07/28/2004 | CN1159587C Front-end architecture for measurement instrument |
| 07/27/2004 | US6768430 System and method for establishing a subsampling rate for repetitive signals |
| 07/27/2004 | US6768315 Voltage measuring apparatus for sheathed power cable |
| 07/27/2004 | US6768310 Method and device for detecting a current |
| 07/27/2004 | US6768226 Electric circuit shielding |
| 07/27/2004 | CA2244692C Temperature compensated current measurement device |
| 07/22/2004 | US20040140817 Current measuring circuit for measuring drive current to load |
| 07/22/2004 | DE29724824U1 Circuit for voltage state detection and indication, e.g. for medium and high voltage switching systems |
| 07/22/2004 | DE10346898A1 Minimalinvasiver Vorrichtungsstrom-Analysator Minimally invasive device power analyzer |
| 07/22/2004 | DE10258766A1 Circuit arrangement for measuring a load current according to the current-sensing principle, wherein a set of switchable auxiliary transistors are connected in parallel to a load transistor and can be connected as required |
| 07/22/2004 | DE10256176A1 Periodic signal average value determination method, in which the signal is sampled over a signal period and the average of the difference of the sample values and the moving average is determined and added to the moving average |
| 07/21/2004 | EP1438593A1 Method and apparatus for determining a current in a conductor |
| 07/21/2004 | EP1368668B1 Measured value acquisition and processing unit for small measuring signals |
| 07/21/2004 | CN2627516Y Electric larceny prevent device |
| 07/21/2004 | CN2627515Y Voltage extracting device |