Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
05/2003
05/22/2003US20030094967 Signal-off detection circuit and optical receiving device using the same
05/22/2003US20030094954 Battery voltage detecting circuit
05/21/2003EP1312927A1 Overcurrent detector for dc voltage converter
05/21/2003EP1312926A1 Binary voltage indicator
05/21/2003EP1311864A1 Circuit for detecting a current passing through a consumer
05/21/2003CN2552008Y Alarm
05/21/2003CN1419130A High-voltage multi-point synchronous measuring circuit and measuring method thereof
05/20/2003US6567760 Electro-optic sampling oscilloscope
05/20/2003US6566965 PLL circuit including a DC power source alarm
05/20/2003US6566916 Chopper type comparator
05/20/2003US6566895 Unbalanced three phase delta power measurement apparatus and method
05/20/2003US6566855 Current sensor with frequency output
05/15/2003WO2003041212A2 Non-linear transmission line using varactors and non-parallel waveguide
05/15/2003WO2003039904A2 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
05/14/2003EP1309872A2 Discrete lowest current measurement
05/14/2003EP1171338B1 Current sensor
05/14/2003EP1166134B1 Method for monitoring a substantially direct current flow in a load
05/14/2003CN2550771Y Switch tube detector
05/14/2003CN1418312A 电压传感器 Voltage sensor
05/14/2003CN1108655C 充放电控制电路 Charge and discharge control circuit
05/13/2003US6563766 Voltage detecting device, battery remaining voltage detecting device, voltage detecting method, battery remaining voltage detecting method, electronic timepiece and electronic device
05/08/2003WO2002031950A3 System and method for detection of zero current condition
05/07/2003CN1416629A Intelligent equipment household netword
05/07/2003CN1107874C Circuit arrangement for accurately sensing direct current derived from clocked electric input values
05/06/2003US6559786 Circuit arrangement for conversion of an input current signal to a corresponding digital output signal
05/06/2003US6559782 Method of determining measuring time for an analog-digital converter
05/06/2003US6559688 Voltage comparing circuit
05/06/2003US6559684 System and method for current sensing
05/02/2003EP1306956A1 Low power, high accuracy lithium battery protection circuit
05/02/2003EP1306679A1 Method and apparatus for remotely testing semiconductors
05/02/2003EP1306350A2 Microelectrical mechanical system with improved beam suspension
05/02/2003EP1305643A1 Signal measurement
05/01/2003US20030080812 Circuit configuration for detecting a functional disturbance
05/01/2003US20030080751 Digital envelope detector
05/01/2003US20030080747 Low power, high accuracy lithium battery protection circuit
05/01/2003US20030080723 Average current estimation scheme for switching mode power supplies
05/01/2003US20030080628 Electric circuit shielding
05/01/2003US20030080627 Electric circuit shielding
04/2003
04/30/2003CN2548163Y Electric energy measuring apparatus
04/29/2003US6556057 Noise suppression circuitry and method
04/29/2003US6556050 High speed signal window detection
04/29/2003US6556025 DC/low frequency sub-atto signal level measurement circuit
04/29/2003US6556003 Computer multimeter
04/29/2003US6555999 Insulator support current sensor
04/29/2003US6555934 Method and apparatus for control of large-area ground plane potentials
04/29/2003CA2239722C Electro-optic voltage sensor
04/24/2003WO2003034592A1 Adaptive level binary logic
04/24/2003WO2003034577A1 Method and apparatus for near losslessly measuring inductor current
04/24/2003WO2003034077A2 Photoconductive-sampling voltage measurement
04/24/2003US20030076122 Photoconductive-sampling voltage measurement
04/24/2003US20030076086 Electrical quantity sensor
04/24/2003US20030076084 Method and apparatus for field-effect transistor current sensing using the voltage drop across drain to source resistance that eliminates dependencies on temperature of the field-effect transistor and/or statistical distribution of the initial value of drain to source resistance
04/24/2003DE20302423U1 Insulated hand tool has detection system providing warning of proximity of source of alternating voltage
04/23/2003EP1183543B1 Electrical current sensor
04/23/2003EP1076829B1 Method and circuit for measuring a current
04/23/2003EP0834078B1 High voltage measuring device
04/23/2003EP0759175B1 Microcontroller with brown-out detection
04/23/2003CN1412633A 电压检测电路 Voltage detection circuit
04/23/2003CN1412569A Power-off sounding device for domestic appliances
04/23/2003CN1412568A D.C. current sensing device
04/22/2003US6552579 Fuel gauge power switch with current sense
04/22/2003US6552562 Current detecting apparatus and its control method
04/22/2003US6552524 High speed power system high voltage transient damage assessment
04/22/2003US6552522 Wire cutter tool with integral insulation piercing circuit tester
04/17/2003US20030071648 Minimum detector arrangement
04/17/2003US20030071636 Method and apparatus for near losslessly measuring inductor current
04/17/2003US20030071610 Method and apparatus for monitoring an electrical current consumming device
04/17/2003US20030071608 Peak detector and detecting method thereof
04/16/2003EP1302774A1 Sagnac interferometer current sensor
04/16/2003EP0855103B1 Peak detector and use thereof
04/16/2003CN2545613Y AC current transducer
04/16/2003CN1411557A Electric arc monitoring systems
04/15/2003US6549859 Method of time stamping a waveform edge of an input signal
04/15/2003US6549573 Testing method and apparatus of glitch noise and storage medium
04/15/2003US6549057 RMS-to-DC converter with balanced multi-tanh triplet squaring cells
04/15/2003CA2233879C Ac current sensor
04/10/2003WO2003030364A2 Control device
04/10/2003WO2003029832A1 Multi-test circuit breaker locator
04/10/2003US20030067317 Current sense circuit for motor drive
04/10/2003US20030067304 Voltage detecting circuit
04/10/2003US20030067282 Method and unit for computing charging efficiency and charged electrical quantity of battery
04/09/2003EP1300948A2 High speed peak amplitude comparator
04/09/2003EP1299737A2 Circuit test light
04/09/2003EP1299736A1 Fiber-optic current sensor
04/09/2003CN2544288Y 测电笔 Test pencil
04/09/2003CN2544287Y Telescopic folding type high-voltage detector
04/09/2003CN1409495A 分析传感器 Analytical Sensors
04/09/2003CN1105346C Power management method in personal digital assistant
04/09/2003CN1105307C Monitoring device secured to power distribution system conductors
04/08/2003US6545510 Input buffer and method for voltage level detection
04/08/2003US6545483 Analyzer sensor
04/08/2003US6545482 Monitoring wide area dynamic swing recordings on an electrical power system
04/08/2003US6545457 Current detector utilizing hall effect
04/03/2003WO2003028198A1 Device for measuring a chopped current
04/03/2003US20030065484 AC defect detection and failure avoidance power up and diagnostic system
04/03/2003US20030062928 High speed peak amplitude comparator
04/03/2003US20030062918 Burn-in apparatus having average voltage calculating circuit
04/03/2003DE20301606U1 Measuring device, used for measuring current densities during galvanizing of circuit boards, comprises an electrically conducting measuring surface and an electrically conducting contact on the rear side, and an electrical connection
04/03/2003DE20218307U1 Cable shears have an integral contact-free voltage tester for generation of a visual or audible alarm when a cable that is to be cut is still live, thus preventing personnel injury or damage to equipment
04/02/2003EP1298801A1 A MOS current sense circuit
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