| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 01/13/2005 | US20050007093 Current measurement technique and current measurement apparatus |
| 01/13/2005 | US20050007064 Charging apparatus and charging current detecting circuit thereof |
| 01/12/2005 | CN2670951Y Current sensor |
| 01/12/2005 | CN1564948A Photoconductive- sampling voltage measurement |
| 01/12/2005 | CN1564004A Multi-pack d.c signal conversion digital signal device |
| 01/12/2005 | CN1564003A Voltage detecting circuit |
| 01/12/2005 | CN1564002A On-line monitor of lighting arrester |
| 01/12/2005 | CN1184485C Floating plate voltage monitor |
| 01/11/2005 | US6841987 High speed measurement system which selects optimal measurement range on a sample by sample basis |
| 01/11/2005 | CA2294506C Electrical tester for small motor vehicles |
| 01/11/2005 | CA2146174C High precision rf vector analysis system based on synchronous sampling |
| 01/06/2005 | WO2005001388A2 Method and apparatus for real time clock (rtc) brownout detection |
| 01/06/2005 | US20050002143 Current detecting circuit and actuator driving apparatus |
| 01/06/2005 | US20050001658 Power-supply voltage detection circuit and integrated circuit device |
| 01/06/2005 | US20050001607 Multi-test circuit interrupter locator and circuit interrupter tester |
| 01/05/2005 | EP1494034A2 Power-supply voltage detection circuit and integrated circuit device |
| 01/05/2005 | DE10327688A1 Low-pass filtering method for measurement values, in which new digitized measurement values are compared with a reference value in order to determine if a change in a steady state value has occurred |
| 01/05/2005 | DE10326066A1 Tool with an integral voltage detection sensor that operates galvanically, capacitively or inductively to trigger an alarm upon detection of live components or cabling |
| 01/05/2005 | DE10326064A1 Contactless safety voltage detector for warning a wearer or carrier if an object or component is live, is dimensioned so that it can easily be carried on the person or incorporated in clothing or a tool |
| 01/05/2005 | CN2669201Y Emergency electric torch for airplane cabin |
| 01/05/2005 | CN2669200Y Universal meter capable of identifying live wire |
| 01/05/2005 | CN1560640A Indirect measuring method for electric network capacitance current |
| 01/05/2005 | CN1560639A Voltage mutual inductor ferromagnetic resonant diagnosis and deresonant method |
| 01/04/2005 | US6838913 Charge/discharge current detection circuit and variable resistor |
| 12/30/2004 | US20040263216 Integrated circuit having a voltage monitoring circuit and a method for monitoring an internal burn-in voltage |
| 12/30/2004 | US20040263150 Resistor arrangement, manufacturing method, and measurement circuit |
| 12/30/2004 | US20040263148 Current sensor |
| 12/29/2004 | WO2004113938A1 Method and circuit arrangement for the self-testing of a reference voltage in electronic components |
| 12/29/2004 | WO2004113937A1 Method and circuit arrangement for the self-testing of a reference voltage in electronic components |
| 12/29/2004 | WO2004097436A3 Measurement circuit with improved accuracy |
| 12/29/2004 | EP1492232A1 Comparator with high-voltage inputs in an extended CMOS process for higher voltage levels |
| 12/29/2004 | EP1492130A2 Resistor arrangement, process for production and measuring circuit |
| 12/29/2004 | EP1491907A1 Motor driving apparatus |
| 12/29/2004 | EP1490700A1 Circuit arrangement and method for testing an electric circuit |
| 12/29/2004 | EP1066536B1 Voltage indicator for indicating that the voltage of a battery passes a given value |
| 12/29/2004 | CN2667500Y Radio remote sensing instrument |
| 12/29/2004 | CN2667499Y Wire-carried current radio telemetering equipment |
| 12/29/2004 | CN1558249A Charged detection method for insulator of high voltage direct current transmission line |
| 12/29/2004 | CN1558246A Transformer step down universal earth wire electrification detecting device for electric appliances |
| 12/29/2004 | CN1558245A Resistance-capacitance step down earth wire electrification detecting device universal for electric appliances |
| 12/29/2004 | CN1558244A Wireless telemetering system for wire loaded current |
| 12/29/2004 | CN1182406C Battery voltage detector |
| 12/29/2004 | CN1182401C Sagnac interferometer type current sensor |
| 12/28/2004 | US6836235 Interleaving AD conversion type waveform digitizer |
| 12/28/2004 | US6836156 High frequency signal peak detector |
| 12/23/2004 | WO2004111742A1 A circuit for detecting electric current |
| 12/23/2004 | WO2004111665A1 An electrical fault monitoring and control unit |
| 12/23/2004 | WO2004111662A2 Integrated circuit device for monitoring power supply |
| 12/23/2004 | US20040260501 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 |
| 12/23/2004 | US20040257148 Voltage detection circuit and internal voltage generating circuit comprising it |
| 12/23/2004 | US20040257095 Current detecting circuit AC/DC flyback switching power supply |
| 12/23/2004 | US20040257063 System and method for measuring the power consumed by a circuit on a printed circuit board |
| 12/23/2004 | US20040257061 Coreless current sensor |
| 12/23/2004 | US20040257029 Motor driving apparatus |
| 12/23/2004 | DE10325422A1 Periodic electrical signal amplitude determination procedure for car tire side wall deformation sensors uses integration between null crossings found by trigger |
| 12/22/2004 | EP1086381B1 System for digital measurement of breakdown voltage of high-voltage samples |
| 12/22/2004 | EP1086380B1 System for concurrent digital measurement of peak voltage and rms voltage in high voltage system |
| 12/22/2004 | EP0954898A4 Current-sensing mosfets in paralleled mosfet power circuit |
| 12/22/2004 | CN2665720Y Hand-held pincerlike digital current harmonic analyzer |
| 12/22/2004 | CN2665718Y Small-sized three-phase electric measuring instrument |
| 12/21/2004 | US6833732 Output signal circuit capable of automatically detecting polarity |
| 12/21/2004 | US6833712 Differentiating between board-insertion power-on and chassis power-on |
| 12/21/2004 | US6833708 Leak detecting circuit for power source device |
| 12/21/2004 | US6833694 Current measurement technique and current measurement apparatus |
| 12/16/2004 | WO2004110031A2 Current sense circuit in a line powered network element |
| 12/16/2004 | WO2004109303A1 Instantaneous voltage lowering detection device |
| 12/16/2004 | WO2004008159B1 Conductor tracing system |
| 12/16/2004 | US20040251928 Device for detecting a motor drive current |
| 12/16/2004 | DE102004024112A1 Schaltung zur Messung des Stromes durch einen Leistungs-MOSFET Circuit for measuring the current through a power MOSFET |
| 12/15/2004 | EP1031070B1 Device and method for monitoring a signal |
| 12/15/2004 | CN1180268C Electrical quantity sensor |
| 12/15/2004 | CN1180267C Circuit arrangement and method for measuring current consumption transistor-controlled load |
| 12/15/2004 | CN1180266C Current metering sensor |
| 12/15/2004 | CN1180265C Wave form time calibrating method for digital artefact minimizing in time space distribution measuring results |
| 12/14/2004 | US6831749 Sagnac interferometer current sensor |
| 12/09/2004 | WO2004106951A1 Undercurrent sense arrangement and method |
| 12/09/2004 | WO2004106950A1 Waveform detection, in particular for the representation of the root mean square of a waveform |
| 12/09/2004 | US20040249876 Method for determining RMS values for grid-linked converters |
| 12/09/2004 | US20040246041 Feedback control system and method |
| 12/09/2004 | US20040246031 Ultra-low power programmable timer and low voltage detection circuits |
| 12/09/2004 | US20040246030 Speeded up multistage comparator with power reduction and reliable output |
| 12/09/2004 | US20040246022 Adaptive level binary logic |
| 12/09/2004 | US20040246000 Method of detecting partial discharges and diagnostic system for electrical apparatus |
| 12/09/2004 | US20040245980 Screening for electrical conductivity of molecules by measuring surface potential |
| 12/09/2004 | US20040245962 Detection circuit having an adaptive threshold |
| 12/09/2004 | US20040245468 Method and appliances for analog processing of a signal emitted by a particle detector |
| 12/08/2004 | EP1484616A1 Method for detecting partial discharges and system for diagnozing an electrical apparatus |
| 12/08/2004 | CN2662257Y A novel circuit current detecting device |
| 12/08/2004 | CN1553199A Electronic induce electroscope with direction discrimination function |
| 12/08/2004 | CN1553198A Cable core current detector |
| 12/08/2004 | CN1553197A Electric power optical voltage sensor signal reconfiguration and outputting module |
| 12/08/2004 | CN1179479C Method and circuit for power detection in electronically switched electric motor |
| 12/08/2004 | CN1179212C Energy meter with power quality monitoring and diagnostic system |
| 12/07/2004 | US6828797 Alternative method for VOD testing of linear differential line drivers |
| 12/07/2004 | US6828793 Battery voltage detecting circuit |
| 12/07/2004 | US6828770 Apparatus and method for electrical measurements on conductors |
| 12/07/2004 | US6828767 Hand-held voltage detection probe |
| 12/07/2004 | US6828753 Input filter for A.C. motor phase current sensing |
| 12/05/2004 | CA2469443A1 Method of detecting partial discharges and diagnostic system for electrical apparatus |
| 12/02/2004 | WO2004105224A1 A current rectifier circuit, its use and method in a parallel processor network |