| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 09/04/2007 | US7266463 Signal identification method and apparatus for analogue electrical systems |
| 09/04/2007 | US7266462 System, method and computer program product for configuring power supply apparatus |
| 09/04/2007 | US7265533 Non-intrusive power monitor |
| 08/30/2007 | WO2007095879A1 Current-measuring device |
| 08/30/2007 | US20070200547 Object detector |
| 08/30/2007 | DE102006007847A1 Vorrichtung und Verfahren zur Anzeige wenigstens eines elektrischen Signals Apparatus and method for displaying at least an electrical signal |
| 08/30/2007 | DE102006007846A1 Signalanzeigevorrichtung zur Anzeige der Signale auf Signalwegen Signal display device for displaying the signals on signal paths |
| 08/30/2007 | DE102006007741A1 Current measurement method for measuring current in cable of electric circuit, involves measuring voltage drop for current measurement between voltage drop points of strip conductor |
| 08/30/2007 | DE102006007480A1 Switching device for receiving current, has detector for detection of current flowing through load path of central transistor by measuring voltage gradient over resistance |
| 08/29/2007 | EP1825277A1 Voltage sensing tool |
| 08/29/2007 | EP1825123A1 Electrical circuit for controlling a piezoelectric element, particularly of a fuel injection system of a motor vehicle |
| 08/29/2007 | EP1738186A4 Detector of differential threshold voltage |
| 08/29/2007 | EP1421394B1 Impulsive transient detection and data acquisition coprocessor |
| 08/29/2007 | CN200941108Y Splitting resistance-card voltage on-line detector |
| 08/29/2007 | CN101027564A Method for determining zero crossing in a converter |
| 08/29/2007 | CN101027562A Electric power monitoring and response system |
| 08/29/2007 | CN101025437A Circuit for detecting remaining battery capacity |
| 08/29/2007 | CN101025427A Method for judging leakage current in integrated circuit and MOS element |
| 08/28/2007 | US7262638 Current sense amplifier |
| 08/28/2007 | US7262612 Methods for evaluating characteristics of a plasma or the effects of a plasma on a substrate |
| 08/23/2007 | WO2007067590A3 Diagnostic system for power converter |
| 08/23/2007 | US20070194843 Detecting amplifier out-of-range conditions |
| 08/23/2007 | US20070194803 Probe holder for testing of a test device |
| 08/23/2007 | DE102006039097A1 Electric motor e.g. direct current motor, current measuring device for motor vehicle, has conductor path section electrically connected with input and output contacts, has and including voltage meter to measure voltage drop between points |
| 08/23/2007 | DE102006036247A1 Terminal device e.g. for current measurement of motor vehicle battery, has pin-shaped section for positioning in battery terminal recess |
| 08/23/2007 | DE102006005711A1 Verfahren und Vorrichtung zur Überwachung wenigstens einer Glühkerze eines Kraftfahrzeugs Method and device for monitoring at least one glow plug of a motor vehicle |
| 08/22/2007 | EP1820032A1 Method for measuring current using a shunt and measuring current device |
| 08/22/2007 | EP1777530A9 Method and arrangement for measuring inverter output currents |
| 08/22/2007 | CN2938121Y Test pencil |
| 08/22/2007 | CN2938120Y Integral power measuring control device |
| 08/22/2007 | CN2938119Y Photoelectric coupling AC voltage separation measuring circuit |
| 08/22/2007 | CN2938118Y Measuring circuit for AC low current |
| 08/22/2007 | CN2938117Y Compound magnetic core current mutual inductor |
| 08/22/2007 | CN2938116Y Mutual inductor for high power detection |
| 08/22/2007 | CN1333516C Method and circuit arrangement for detecting communication impulses |
| 08/22/2007 | CN101021719A Electrical measurement-based control switch and switch control socket |
| 08/22/2007 | CN101021554A Neutral-point earth-free distributing network direct-to-ground capacitance current measuring method |
| 08/22/2007 | CN101021553A PWM current measuring method |
| 08/22/2007 | CN101021552A Distribution network earth fault current measuring method |
| 08/21/2007 | US7259618 Systems and methods for load detection and correction in a digital amplifier |
| 08/21/2007 | US7259596 Circuit arrangement for monitoring a voltage |
| 08/21/2007 | CA2340473C Ground fault interrupter |
| 08/16/2007 | US20070188219 Current sense amplifier for voltage converter |
| 08/16/2007 | US20070188158 Locating device |
| 08/16/2007 | US20070188105 Method of determining a zero point of a current sensor |
| 08/16/2007 | DE19717811B4 Überwachungsschaltung für eine Versorgungsspannung Monitoring circuit for a power supply |
| 08/16/2007 | DE19502439B4 Verfahren und Messanordnung zum Messen der pro Zeiteinheit einen Vakuumvolumenbereich in gegebener Richtung durchströmenden elektrischen Ladungsmenge und deren Verwendung für Massenspektrometer Methods and measuring device for measuring the volume per unit of time a vacuum area flowing in a given direction amount of electric charge and their use for mass spectrometer |
| 08/16/2007 | DE112005001480T5 Gerätefehlermonitor Device Fault Monitor |
| 08/16/2007 | DE102006005712A1 Glow plug monitoring method for motor vehicle, involves providing time intervals and time points for checking whether parameter characterizing current flowing through plug lies below upper threshold value and above lower threshold value |
| 08/16/2007 | DE102006005670A1 Air Ionization device, has signaling device coupled with high voltage supply line, and has electrical pulse circuit and signal generator with proper high voltage at high voltage supply line |
| 08/16/2007 | DE102006005053A1 Vorichtung zum Erfassen eines Angriffs auf eine elektrische Schaltung Vorichtung for detecting an attack on an electrical circuit |
| 08/15/2007 | EP1819021A2 Method and device for monitoring polyphase lines and for detecting phase losses based on the phase angle between phase-to-phase voltages |
| 08/15/2007 | EP1817943A2 Electric arc furnace monitoring system and method |
| 08/15/2007 | EP1817826A1 Method and circuit for amplifying the input signals of an electronic overcurrent release of low-voltage circuit breakers with a selectable amplification factor |
| 08/15/2007 | CN2935584Y Automatic system analog simulation test apparatus of power distribution network |
| 08/15/2007 | CN2935170Y Portable middle and low voltage testing pencil |
| 08/15/2007 | CN2935169Y Temperature compensator of Hall detecting current-sensing device |
| 08/15/2007 | CN1332207C Device for measuring electrical double layer streaming potential in thin-film lubrication |
| 08/15/2007 | CN1332206C System of giving an alarm of AC power down |
| 08/15/2007 | CN101019471A Active dose reduction device and method |
| 08/15/2007 | CN101018037A Offset PWM signals for multiphase motor |
| 08/15/2007 | CN101017184A Method for surveying generation source of electromagnetic waves, and current probe used therefor |
| 08/14/2007 | US7257498 System and method for the safe automatic detection of a field device communicating with current modulated signal |
| 08/14/2007 | US7257323 Signal-off detection circuit and optical receiving device using the same |
| 08/09/2007 | WO2007089255A1 Motor drive circuit and winding current sensing |
| 08/09/2007 | WO2007087766A1 Arrangement and method for converting a digital signal with a large voltage swing into a digital signal with a voltage swing which is smaller than the latter |
| 08/09/2007 | WO2007087728A1 Adaptive method and system of monitoring signals for detecting anomalies |
| 08/09/2007 | US20070182603 Method and system for detecting a mode of operation of an integrated circuit, and a memory device including same |
| 08/09/2007 | US20070182458 Sense amplifier flip flop |
| 08/09/2007 | DE102006004873A1 Circuit configuration testing method involves measuring supply voltage of circuit configuration and error free condition is recognized, if first variable of supply voltage lies outside of valid range, which is smaller than threshold value |
| 08/08/2007 | EP1816483A1 Short-circuit and overcurrent detection circuit |
| 08/08/2007 | CN2932803Y Energy-saving lamp charging and discharging control device |
| 08/08/2007 | CN2932396Y A photoelectric pen |
| 08/08/2007 | CN2932395Y Transformer antitheft alarm |
| 08/08/2007 | CN2932394Y Metering device with a wide current measuring range |
| 08/08/2007 | CN2932393Y Current transformer detecting and switching device |
| 08/08/2007 | CN1331288C Method and appts. for deriving power system data from configurable source points |
| 08/08/2007 | CN101014866A Indicator of presence of AC voltage |
| 08/08/2007 | CN101013872A Quick current-sensing device for motor control |
| 08/08/2007 | CN101013152A Circuit and method for confirming sensor device and fault sensor element |
| 08/08/2007 | CN101013144A Hall electric current detecting apparatus |
| 08/08/2007 | CN101013143A Highly anti-interference alternating-current/magnetic field sensor |
| 08/07/2007 | US7254077 Circuit and method for high speed sensing |
| 08/07/2007 | US7253604 Assembled capacitor polarity automatic inspecting method and system |
| 08/07/2007 | US7253602 Self-powered power bus sensor employing wireless communication |
| 08/02/2007 | WO2007086971A1 Device for monitoring cell voltage |
| 08/02/2007 | US20070176645 Active current cancellation for high performance video clamps |
| 08/02/2007 | DE19612891B4 Verfahren zum Testen von einem oder mehreren untereinander verbundenen elektronischen Verbrauchern A method of testing one or more electronic consumers interconnected |
| 08/02/2007 | DE102007005231A1 Messvorrichtung, Prüfvorrichtung und Messverfahren Measuring device, test device and methods of measurement |
| 08/02/2007 | DE10114908B4 Dimmer Dimmer |
| 08/02/2007 | DE10055223B4 Stromdetektionseinrichtung und Stromdetektionsverfahren Current detection device and current detection method |
| 08/01/2007 | EP1814204A2 Electrical apparatus, electrical apparatus system, and power supply apparatus |
| 08/01/2007 | CN1330104C Method and device for providing power, guiding analogue measuring and communication signal |
| 08/01/2007 | CN101009435A Power supply of the detectable and adjustable voltage and current and its method |
| 08/01/2007 | CN101009430A Apparatus, method and computer program product for tracking information in an electric grid |
| 08/01/2007 | CN101008668A High accuracy detecting system of lithium batteries |
| 08/01/2007 | CN101008659A Method for testing fluctuation of aluminium luquid of aluminium reduction cells and test probe thereof |
| 07/31/2007 | US7251571 Methods of diagnosing open-secondary winding of an ignition coil using the ionization current signal |
| 07/31/2007 | US7250872 Method and device for testing at least one LED strip |
| 07/26/2007 | US20070173217 Digital qp detecting apparatus, spectrum analyzer having the same, and digital qp detecting method |