| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 03/25/1997 | US5614807 Battery charge indicator |
| 03/19/1997 | CN2249906Y High voltage displayer |
| 03/18/1997 | US5611624 Device and method for digitally measuring a voltage varying within a given range, and uses thereof |
| 03/18/1997 | CA2061281C Dc current comparator circuit for generating an adjustable output proportional to an input signal |
| 03/13/1997 | DE19533002A1 High-frequency voltage and current measurement device for conductor |
| 03/12/1997 | EP0762594A1 Determining battery voltage during charging and charging device for battery |
| 03/12/1997 | EP0762589A1 Device for recording strokes of lightning |
| 03/12/1997 | EP0762134A2 Current magnitude sensing circuit |
| 03/12/1997 | EP0734217A4 Improved carpet cleaning machine with convertible-use feature |
| 03/12/1997 | CN2249459Y Power supply socket with warning function |
| 03/11/1997 | US5610827 Method of and apparatus for peak amplitude detection |
| 03/11/1997 | US5610542 Power-up detection circuit |
| 03/11/1997 | US5610529 Probe station having conductive coating added to thermal chuck insulator |
| 03/11/1997 | US5610525 Battery capacity detector |
| 03/11/1997 | US5610511 Temperature responsive battery tester |
| 03/11/1997 | US5610506 Voltage reference circuit |
| 03/06/1997 | DE19633542A1 Leistungsmodul Power module |
| 03/05/1997 | EP0760464A1 Pre-processor apparatus and method |
| 03/05/1997 | EP0573408B1 Temperature-compensated apparatus for monitoring current having reduced sensitivity to supply voltage |
| 03/05/1997 | CN2248944Y Limit alarming protector for power transformer |
| 03/05/1997 | CN1144339A Accumulator voltage monitor |
| 03/04/1997 | US5607604 Apparatus for detecting voltage across thyristor in alternating-current resistance welding machine |
| 03/04/1997 | CA2001776C Cognition device for battery residual capacity |
| 02/27/1997 | WO1997007409A1 Vcc level detection circuit |
| 02/27/1997 | WO1997007408A1 Voltage detecting circuit, a power on/off resetting circuit, and a semiconductor device |
| 02/27/1997 | DE19527487C1 Circuit arrangement for testing functioning of current monitor circuit for power transistor |
| 02/26/1997 | EP0759557A2 Electro-optic probing apparatus using trigger circuit |
| 02/26/1997 | EP0759175A1 Microcontroller with brown-out detection |
| 02/25/1997 | US5606511 Microcontroller with brownout detection |
| 02/25/1997 | US5606510 High speed power analyzer |
| 02/25/1997 | US5606271 Extreme level circuit |
| 02/25/1997 | US5606257 Device for forming a square-wave signal and detecting a reference mark from a sinusoidal signal with a singularity |
| 02/25/1997 | US5606249 Electrical apparatus with wide dynamic range for monitoring and protecting electric power systems |
| 02/19/1997 | EP0758750A2 AC mains test system for measuring current harmonics and voltage variations |
| 02/19/1997 | EP0758749A1 Current sensor and electrical apparatus using same |
| 02/19/1997 | CN2247817Y Loss-of-phase and service interruption sound and flash alarm device |
| 02/15/1997 | CA2183265A1 Current detector and electrical apparatus having said detector |
| 02/12/1997 | EP0758183A1 Peak detection and imager using peak detection |
| 02/12/1997 | EP0757870A1 Self-powered powerline sensor |
| 02/12/1997 | EP0757859A1 Reverse current prevention circuits |
| 02/12/1997 | EP0757854A1 A window discriminator controlled current breaker |
| 02/12/1997 | EP0757796A1 Device for connecting a voltage display apparatus to a sensor |
| 02/12/1997 | EP0673512B1 Charge-status indicator |
| 02/12/1997 | CN2247344Y High-voltage electricity speech sound alarm device |
| 02/11/1997 | US5602500 Circuit for the detection of voltage thresholds |
| 02/11/1997 | US5602469 Apparatus for detecting the amplitude and phase of an a.c. signal |
| 02/06/1997 | WO1997004373A1 A voltage reference arrangement, a voltameter, a battery voltage detection arrangement, and a wireless communication device |
| 02/06/1997 | WO1997004320A1 Dual slope a/d converter |
| 02/06/1997 | CA2170165A1 Block heater indicator system |
| 02/05/1997 | EP0756710A1 Device for displaying the voltage of a conductor of a high-voltage power supply system |
| 02/05/1997 | CN1142264A Measuring process for measuring chargeable electrical consumption from an electrical network and electronic electricity meter |
| 02/04/1997 | US5600247 Dynamically balanced fully differential circuit for use with a battery monitoring circuit |
| 02/04/1997 | US5600235 Bipolar cascadable circuit configuration for signal limitation and field intensity detection |
| 02/04/1997 | CA2089664C Method and electrical measuring apparatus for analyzing the impedance of the source of an actual alternating voltage |
| 01/29/1997 | EP0756222A2 Clamp circuit for remotely sensed voltage |
| 01/23/1997 | WO1997002494A1 Shunt assembly for current measurement |
| 01/23/1997 | DE19539454C1 Current rail support isolator |
| 01/23/1997 | CA2226107A1 Shunt assembly for current measurement |
| 01/22/1997 | EP0754303A1 Reliable voltage monitoring system |
| 01/22/1997 | CN1140839A High-voltage test instrument |
| 01/16/1997 | WO1997001885A1 Improved charge rate electrometer |
| 01/15/1997 | EP0753754A2 Integrated comparator circuit |
| 01/15/1997 | EP0670033B1 Circuitry for processing analogical current and voltage signals |
| 01/15/1997 | CN1140260A Method and apparatus for measuring change in capacitance values in dual capacitors |
| 01/14/1997 | US5594612 Analog-to-digital converter with digital linearity correction |
| 01/14/1997 | US5594381 Reverse current prevention method and apparatus and reverse current guarded low dropout circuits |
| 01/14/1997 | US5594360 Low current reduced area programming voltage detector for flash memory |
| 01/14/1997 | US5594359 Voltage generating circuit for IC test |
| 01/14/1997 | US5594353 Method and apparatus for measuring the change in capacitance values in dual capacitors |
| 01/09/1997 | WO1997001100A1 High voltage measuring device |
| 01/09/1997 | DE4336884C2 Schaltungsanordnung Circuitry |
| 01/09/1997 | CA2221457A1 High voltage measuring device |
| 01/08/1997 | EP0752591A1 Numeric high pression voltage measurement |
| 01/08/1997 | EP0752580A2 Measuring circuit for an ionic current |
| 01/08/1997 | EP0752106A1 Method and apparatus for analyzing a waveform |
| 01/07/1997 | US5592390 Time based method for analyzing a waveform |
| 01/07/1997 | US5592112 Motor current detection circuit |
| 01/02/1997 | EP0751395A2 Technique and apparatus for measuring a direct current flowing through a conductor at high voltage |
| 01/01/1997 | CN1139213A Split-path linear isolation circuit apparatus and method |
| 12/31/1996 | US5589759 Circuit for detecting voltage variations in relation to a set value, for devices comprising error amplifiers |
| 12/27/1996 | WO1996042049A1 Circuit for comparing two electrical quantities |
| 12/27/1996 | EP0750195A1 Two-dimensional sensor using laps for measuring cell activity |
| 12/27/1996 | EP0750194A1 Two-dimensional sensor having photoconductive layer for measuring cell activity |
| 12/27/1996 | CA2179463A1 Technique and apparatus for measuring a direct current flowing through a conductor at high voltage |
| 12/25/1996 | CN1138700A Safety current indicator |
| 12/24/1996 | US5587917 Data collection and processing for digital AC power system monitor/analyzer |
| 12/21/1996 | CA2179459A1 Two-dimensional sensor using laps for measuring cell activity |
| 12/21/1996 | CA2179458A1 Two-dimensional sensor having photoconductive layer for measuring cell activity |
| 12/18/1996 | EP0748535A1 Improved supply voltage detection circuit |
| 12/18/1996 | CN2243083Y Domestic cell voltage measurer with multiple luminescent diode to indicate |
| 12/17/1996 | US5586043 Method and apparatus for monitoring differentials between signals |
| 12/17/1996 | US5585748 Voltage-frequency converter circuit with temperature compensation |
| 12/17/1996 | US5585746 Current sensing circuit |
| 12/17/1996 | US5585735 E-O probe with FOP and voltage detecting apparatus using the E-O probe |
| 12/17/1996 | US5585701 Current mirror circuit constituted by FET (field effect transistor) and control system using the same |
| 12/12/1996 | WO1996039617A1 Open sensor diagnostic system for temperature transmitter in a process control system |
| 12/12/1996 | CA2222681A1 Open sensor diagnostic system for temperature transmitter in a process control system |
| 12/11/1996 | EP0748021A1 Low cost apparatus for detecting arcing faults and circuit breaker incorporating same |
| 12/11/1996 | EP0747713A2 Circuit for measuring the load current of a power semiconductor device with a load on the source or drain side |
| 12/11/1996 | EP0746890A1 Method and apparatus for rms current approximation |