| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 02/14/2007 | CN2870257Y Current type electrcity-proof-wall detection chip having time-base circuit zero earth wire detection interface |
| 02/14/2007 | CN2870256Y Voltage-type electrcity-proof-wall detection chip and having time-base circuit zero earth wire detection interface |
| 02/14/2007 | CN1300908C Lightning protection of electric installation and detection device of lightning strikes |
| 02/14/2007 | CN1300904C Device for anti stealing electricity |
| 02/14/2007 | CN1300593C Photoelectric direct current sensor |
| 02/14/2007 | CN1300592C Device and method for electronic shearing speckle interference measuring current |
| 02/13/2007 | US7177130 Overcurrent detection and protection apparatus for switching element |
| 02/13/2007 | US7176726 Integrated loss of signal detection with wide threshold range and precise hysteresis |
| 02/13/2007 | US7176673 Direct current detection circuit |
| 02/13/2007 | US7176665 Analog current sense circuit |
| 02/13/2007 | CA2442228C Electrochemical stripping using single loop control |
| 02/13/2007 | CA2238786C Panelboard for controlling and monitoring power or energy |
| 02/08/2007 | US20070030188 Reference module apparatus and method therefor |
| 02/08/2007 | DE10360109B4 Leistungsschnittstellenschaltung für eine aktive Antenne und Verfahren zur Speisung einer entfernt befindlichen aktiven Antenne A power interface circuit for an active antenna and method for feeding an active antenna remotely located |
| 02/08/2007 | DE102005036047A1 Verfahren und Vorrichtung zur Überprüfung eines ersten Spannungswertes Method and apparatus for checking a first voltage value |
| 02/07/2007 | EP1750372A1 A comparison device for a input signal with a reference signal and correspondant electronic circuit. |
| 02/07/2007 | EP1750137A2 Method and apparatus for low cost current and voltage sensing in circuits as a function of a voltage drop |
| 02/07/2007 | EP1597598B1 Electric current sensor |
| 02/07/2007 | CN2867638Y Contact connector |
| 02/07/2007 | CN2867411Y Electricity saving administrative controlling machine |
| 02/07/2007 | CN2867351Y Single cell voltage testing circuit for fuel cell |
| 02/07/2007 | CN1910966A Electronic ballast with multi-slope current feedback |
| 02/07/2007 | CN1909324A Method and apparatus for monitoring UPS power sources |
| 02/07/2007 | CN1908682A Circuit for detecting input voltage of transformers |
| 02/07/2007 | CN1908681A Over-voltage monitoring sensor for AD electricity system |
| 02/07/2007 | CN1908680A Surging current detecting circuit |
| 02/07/2007 | CN1299433C Current detection IC |
| 02/06/2007 | US7174279 Test system with differential signal measurement |
| 02/06/2007 | US7174261 Power line sensors and systems incorporating same |
| 02/06/2007 | US7174258 Apparatus and system for protection, control, and management of electricity distribution systems using time synchronization |
| 02/06/2007 | US7173798 DCDC voltage converter overload detector, and corresponding component and device |
| 02/06/2007 | US7173457 Silicon-on-insulator sense amplifier for memory cell |
| 02/01/2007 | WO2006045022B1 High voltage level shifting by capacitive coupling |
| 02/01/2007 | US20070024353 Characterizing amplitude and phase transfer response of amplifiers using single port measurements |
| 02/01/2007 | US20070024267 Constant slope ramp circuits for sample-data circuits |
| 02/01/2007 | US20070024266 Bi-modal voltage limit control to maximize ultra-capacitor performance |
| 02/01/2007 | US20070024265 Systems and methods for measuring an RMS voltage |
| 02/01/2007 | DE102005035074A1 AC machine`s phase currents determining method for motor vehicle, involves making switching of switch arrangement using operating switch processes, so that phase currents are conveyed to machine, and accomplishing measuring switch process |
| 02/01/2007 | DE102005035056A1 Verfahren zum Schutz einer elektrischen Schaltung A method of protecting an electrical circuit |
| 01/31/2007 | EP1747474A1 Power disturbance detection circuit and method |
| 01/31/2007 | EP1747449A2 One-point recalibration method for reducing error in concentration measurements for an electrolytic solution |
| 01/31/2007 | CN2864700Y Zero-cross detecting circuit and refrigerator employing same |
| 01/31/2007 | CN2864699Y Clamp type DC sensor |
| 01/31/2007 | CN2864698Y Suspension type weak-current measuring device for radioactive water observation |
| 01/31/2007 | CN2864697Y Voltage isolation sampling device |
| 01/31/2007 | CN2864696Y Capacitive current tester |
| 01/31/2007 | CN2864695Y DC potential difference meter using transposition branch method to proceed trimeasuring range transformation |
| 01/31/2007 | CN2864693Y Potential difference meter using distributing branch to depress measuring limit |
| 01/31/2007 | CN1905369A Power detection circuit for non-contact IC card or RFID tag |
| 01/31/2007 | CN1905192A Semiconductor integrated circuit apparatus |
| 01/31/2007 | CN1904622A Valley bottom voltage detection device |
| 01/31/2007 | CN1298106C Power supply control apparatus including highly-reliable overcurrent detecting circuit |
| 01/31/2007 | CN1297821C Intelligent pulse current multiple parameter digital measurer based on non-linear resistance sheet |
| 01/30/2007 | US7171318 PLL filter leakage sensor |
| 01/30/2007 | US7170365 Ultrafast sampler with non-parallel shockline |
| 01/30/2007 | US7170335 Driver circuit for driving a light source of an optical pointing device |
| 01/30/2007 | US7170295 Resistor arrangement, manufacturing method, and measurement circuit |
| 01/30/2007 | US7170270 Control device |
| 01/30/2007 | CA2334404C Method of and apparatus for measuring battery capacity |
| 01/25/2007 | US20070021934 Measuring or test device comprising interchangeable functional units |
| 01/25/2007 | US20070021932 Serial data transmission method and system |
| 01/25/2007 | US20070018632 Detector for detecting a buried current carrying conductor |
| 01/25/2007 | DE10240914B4 Schaltungsanordnung mit einem Lasttransistor und einer Strommessanordnung und Verfahren zur Ermittlung des Laststroms eines Lasttransistors sowie Verwendung eines Halbleiterbauelements Circuit arrangement having a load transistor and a current measuring arrangement and method for determining the load current of a load transistor, and the use of a semiconductor device |
| 01/25/2007 | DE102005033919A1 Verfahren und Vorrichtung Strommessung Method and device current measurement |
| 01/25/2007 | DE102005033135A1 Vorrichtung zur Fehlerstromerkennung in einer elektronischen Einrichtung Apparatus for fault current detection in an electronic device |
| 01/25/2007 | DE102005031811A1 Verfahren und Vorrichtung zur Überwachung und Absicherung von elektrischen Stromkreisen Method and apparatus for monitoring and protection of electrical circuits |
| 01/24/2007 | EP1676140B1 Device for non-dissipative measurement of current in an inductive resistor |
| 01/24/2007 | CN2862051Y High-voltage electroscopic dosimeter |
| 01/24/2007 | CN2862050Y Arrester discharging and creepage current concentrated monitoring device |
| 01/24/2007 | CN2862049Y New type electronic current-sensing device |
| 01/24/2007 | CN2862047Y Quadrature conjugate reflectoscope current-sensing device |
| 01/24/2007 | CN2862024Y Atmospheric ion continuous determinator |
| 01/24/2007 | CN1902890A Current sense circuit in a line powered network element |
| 01/24/2007 | CN1901151A Voltage measuring method, electrical inspection method, electrical inspection device, manufacturing method of semiconductor device and manufacturing method of element substrate |
| 01/24/2007 | CN1900726A Hard disc driver and its work pressure detecting method |
| 01/23/2007 | US7168029 Method for testing a universal serial bus host controller |
| 01/23/2007 | US7167692 High frequency peak detector and applications thereof |
| 01/23/2007 | US7167028 Voltage detection circuit, power supply unit and semiconductor device |
| 01/23/2007 | US7167027 Latch-type level converter and receiver circuit accurately amplifying low-amplitude signals and receiving common-mode input signals higher than a supply voltage |
| 01/18/2007 | WO2007007111A2 Current measurement apparatus |
| 01/17/2007 | CN2859550Y Voltage comparator earth wire electriferous detecting device with resistor that supplies detecting signal |
| 01/17/2007 | CN2859549Y Inductive three-phase high voltage monitoring sensing unit |
| 01/17/2007 | CN2859548Y Inductive high voltage monitoring sensing unit |
| 01/17/2007 | CN1897451A Methods and systems for operating engine generator sets |
| 01/17/2007 | CN1897429A Single pin multi-function signal detection method and structure therefor |
| 01/17/2007 | CN1897387A Apparatus for detecting over current of motor in vehicle |
| 01/17/2007 | CN1897386A Apparatus for detecting over current of dual motor in vehicle |
| 01/17/2007 | CN1896750A Current detector with variable outputting level |
| 01/17/2007 | CN1295516C Current measuring method and arrangement |
| 01/16/2007 | US7164721 Simultaneous bidirectional signal subtraction |
| 01/16/2007 | US7164295 Feedback control system and method |
| 01/16/2007 | US7164273 Power source monitor |
| 01/16/2007 | US7164263 Current sensor |
| 01/16/2007 | CA2456361C Electrical safety device |
| 01/11/2007 | WO2007005548A1 Automated precision alignment of data in a utility monitoring system |
| 01/11/2007 | WO2007003459A1 Circuit arrangement for detecting zero crossings of an alternating voltage |
| 01/11/2007 | WO2006119303A3 Apparatus and methods for measurement of analog voltages in an integrated circuit |
| 01/11/2007 | WO2006002355A3 Comparator feedback peak detector |
| 01/11/2007 | US20070008015 High speed ramp generator |
| 01/11/2007 | US20070007940 Method and apparatus for measuring circularly polarized rotating electromagnetic wave using magnetic field |