| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 05/25/2005 | DE10342990A1 Cell type power transistor load current measurement procedure uses weighting of potential differences between points with maximum separation |
| 05/25/2005 | CN1619909A Over current detector of motor driving circuit |
| 05/25/2005 | CN1619569A Current/charge-voltage convertor |
| 05/25/2005 | CN1619322A Method and device for measuring drive current of thin film transistor array |
| 05/25/2005 | CN1619317A Load driving circuit |
| 05/25/2005 | CN1619316A 电流检测电路以及电流检测方法 Current detection circuit and a current detection method |
| 05/24/2005 | US6898534 DC measurement method and system using sigma-delta modulation pattern |
| 05/24/2005 | US6897644 Apparatus and method for monitoring a signal |
| 05/24/2005 | CA2107319C Electrical switching apparatus with digital trip unit and automatic frequency selection |
| 05/19/2005 | US20050107966 System and method for determining voltage levels |
| 05/19/2005 | US20050105310 Current/charge-voltage converter and reset method |
| 05/19/2005 | US20050105309 Current/charge-voltage convertor |
| 05/19/2005 | US20050105230 Power source monitor |
| 05/19/2005 | US20050104830 Method and device for measuring drive current of thin film transistor array |
| 05/19/2005 | US20050104626 Comparator circuit |
| 05/19/2005 | US20050104611 Device for measuring supply voltage and method thereof |
| 05/19/2005 | US20050104560 Voltage sense apparatus and method for a capacitor charger |
| 05/19/2005 | US20050104559 Method and circuit arrangement for determining the average current consumption of a battery-operated apparatus |
| 05/19/2005 | US20050104475 Current detection circuit and current detection method |
| 05/18/2005 | CN2701139Y Load power signal integration sampler for mining motor |
| 05/18/2005 | CN2700888Y Thunder current transducer |
| 05/18/2005 | CN2700887Y Leakage monitoring transducer |
| 05/18/2005 | CN2700886Y Lightning protector online monitoring device |
| 05/18/2005 | CN1618022A Input buffer and method for voltage level detection |
| 05/18/2005 | CN1617060A Circuit arrangement for monitoring a voltage |
| 05/18/2005 | CN1616980A Device for displaying accumulator power quantity for automobile |
| 05/18/2005 | CN1616974A Current/charge-voltage converter and reset method |
| 05/18/2005 | CN1202613C Power change device |
| 05/18/2005 | CN1202418C Current detecting circuit for A/F sensors |
| 05/17/2005 | US6894477 Electrical current monitor |
| 05/12/2005 | US20050102113 System and method for detecting motion of an electric actuator |
| 05/12/2005 | US20050101193 Remote display ammeter for power plug or power strip |
| 05/12/2005 | US20050099257 Combination current sensor and relay |
| 05/12/2005 | US20050099171 Circuit arrangement for monitoring a voltage |
| 05/11/2005 | EP1529220A2 Method and circuit arrangement for current measurement |
| 05/11/2005 | EP1200925A4 System and method for frequency compensation in an energy meter |
| 05/11/2005 | CN2699536Y USB transmission line having power supply display |
| 05/11/2005 | CN2699310Y Photoelectric direct current transducer |
| 05/11/2005 | CN2699309Y Direct current transducer |
| 05/11/2005 | CN1614430A Electric energy quality monitoring, recording and analyzing system |
| 05/11/2005 | CN1614429A Current consumption recorder of mobile device and mobile device therewith |
| 05/11/2005 | CN1201196C Video camera and warning method thereof |
| 05/11/2005 | CN1201155C Battery current measuring system of electric motor car |
| 05/11/2005 | CN1201153C Low error, switchable measurement lead detect circuit |
| 05/10/2005 | US6891431 Integrated semiconductor circuit configuration |
| 05/10/2005 | US6891354 Method for detecting slow and small changes of electrical signals |
| 05/06/2005 | WO2005041260A2 A system and method for detecting motion of an electric actuator |
| 05/05/2005 | US20050094342 Load current sensing technique |
| 05/05/2005 | US20050093553 Current over-flow detector for motor driving circuit |
| 05/04/2005 | CN2697659Y Remote on-line intelligent monitor instrument for metallic oxide lighting arrester |
| 05/04/2005 | CN2697658Y High-precision interval type voltage meter |
| 05/04/2005 | CN1611952A Electrical Appliance operation fire monitoring system |
| 05/03/2005 | US6888381 High speed peak amplitude comparator |
| 05/03/2005 | US6888341 Dual voltage circuit tester |
| 05/03/2005 | US6886432 Apparatus for accessing telecommunications networks |
| 04/28/2005 | WO2005038476A1 Non-linear dummy load for monitored ac loads |
| 04/28/2005 | WO2005038472A1 Device for non-dissipative measurement of current in an inductive resistor |
| 04/28/2005 | WO2005038471A1 Current monitoring/control circuit |
| 04/28/2005 | US20050090996 Method and system for analyzing quiescent power plane current (IDDQ) test data in very-large scale integrated (VLSI) circuits |
| 04/28/2005 | US20050090204 RF signal peak detector |
| 04/28/2005 | US20050088196 Apparatus for automatically measuring a relatively wide range of leakage currents |
| 04/28/2005 | US20050088155 Multi-sense voltage regulator |
| 04/27/2005 | EP1525489A1 Method and device for voltage measurement of an ac power supply |
| 04/27/2005 | EP1525486A2 Conductor tracing system |
| 04/27/2005 | EP1525485A1 Adaptive voltage monitoring arrangement |
| 04/27/2005 | EP1360511B1 System and method for current sensing |
| 04/27/2005 | CN2696184Y Electronic combined current sensor |
| 04/27/2005 | CN2696013Y Gate inhibition controller with lock power supply state detecting circuit |
| 04/27/2005 | CN2695979Y Three-pincers graphic phase voltammeter |
| 04/27/2005 | CN2695978Y Device for continuous measuring multiple safety units |
| 04/27/2005 | CN1609621A Double-parameter measuring instrument |
| 04/27/2005 | CN1199333C Over-voltage and over-current warning circuit for protection unit of main distribution frame |
| 04/26/2005 | US6885953 Oscilloscope panel capture and implementation |
| 04/26/2005 | US6885952 System and method for determining voltage levels |
| 04/26/2005 | US6885532 Current detection and overcurrent protection for transistors in pulse-width modulation amplifier |
| 04/26/2005 | US6885223 Overvoltage detector |
| 04/26/2005 | US6885222 High-speed cross-coupled sense amplifier |
| 04/26/2005 | US6885215 Voltage detector circuit with a programmable threshold point |
| 04/26/2005 | US6885184 Galvanically isolated voltage sensing circuit |
| 04/26/2005 | US6885183 Current probe |
| 04/21/2005 | US20050083065 Plasma potential measuring method and apparatus, and plasma potential measuring probe |
| 04/21/2005 | US20050083015 Voltage detector of battery assembly |
| 04/21/2005 | US20050082077 Rapid exchange system for testing wireless networks |
| 04/21/2005 | DE202004016974U1 Instrument to detect buried cables and the like, carrying electricity, has a pen-shaped housing with a bright red LED tip and a press button to change the sensibility between high and low voltages |
| 04/20/2005 | EP1524575A2 Output regulator |
| 04/20/2005 | EP1524574A2 Voltage slicer |
| 04/20/2005 | EP1524573A2 Adaptive multi-mode system |
| 04/20/2005 | EP1524572A2 Power array system and method |
| 04/20/2005 | EP1524571A2 Output regulator system |
| 04/20/2005 | EP1524570A2 Adaptive control loop |
| 04/20/2005 | EP1524569A2 Duty cycle estimator |
| 04/20/2005 | EP1524568A2 Adaptive duty cycle limiter |
| 04/20/2005 | EP1524567A2 Duty cycle estimator |
| 04/20/2005 | CN2694283Y Isolated form synchronizing voltage metering circuit |
| 04/20/2005 | CN2694282Y High-pressure charge display |
| 04/20/2005 | CN2694281Y Signal conditioning circuit |
| 04/20/2005 | CN1607392A Voltage virtual value measuring method based on filter |
| 04/19/2005 | US6882943 System, method and computer program product for configuring power supply apparatus |
| 04/19/2005 | US6882217 Cubic spline predistortion, algorithm and training, for a wireless LAN system |
| 04/19/2005 | US6882199 Voltage sensing circuit |