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9024618 Self-heating electrometer for high pressure ion chamber for verification of temperature compensation  
An apparatus and method for verifying the temperature compensation correction factor accuracy of an electrometer is provided. The electrometer includes an electrical amplifier to convert a current...
9000750 Method and apparatus for temperature adjusted control of BATFET current sensing  
A method and apparatus for providing a temperature sensing loop used in connection with a current sensing component, such as a BATFET, in order to compensate for variations in the BATFET's...
8847575 Circuit arrangement  
According to various embodiments, a circuit arrangement is provided which includes a bridge circuit having at least two field effect transistors and a measurement circuit configured to measure a...
8841912 Pre-amplifier and mixer circuitry for a locator antenna  
A pre-amplifier circuit for connection to an antenna of a human-portable locator includes a differential amplifier/mixer pair and means for allowing a common-mode “phantom” signal to modulate a...
8760180 Systems and methods mitigating temperature dependence of circuitry in electronic devices  
Methods and systems for compensating for temperature variation in the performance of electronic circuits and systems are disclosed. In some embodiments, the systems are configured to store...
8629673 Power detection for high power amplifier applications  
A system for determining an amount of power supplied from a power amplifier may include a power amplification circuit having a characteristic thermal resistance, a first temperature sensor for...
8593135 Low-cost power measurement circuit  
In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with...
8508214 Electronic circuit device for sensing a detection element current and/or a temperature in said detection element  
An electronic switching device and method for the detection of a detection element stream through a detection element and/or a temperature in said detection element. A first connection of the...
8368384 Reduction of semiconductor stresses  
A method of reducing thermal stresses of a semiconductor component in a frequency converter, an arrangement in a frequency converter, and a frequency converter, wherein the semiconductor component...
8094033 Apparatus to monitor process-based parameters of an integrated circuit (IC) substrate  
A process monitor measures the absolute value of unit sample resistors and transistors on a common Integrated Circuit (IC) substrate. This information can be used to adjust the gain of an...
8044677 Electrical system, voltage reference generation circuit, and calibration method of the circuit  
A voltage generation circuit that includes: a voltage generator integrated in a semiconductor chip and structured to generate an output voltage in accordance with a calibration parameter; a heater...
7969151 Pre-amplifier and mixer circuitry for a locator antenna  
A pre-amplifier circuit for connection to an antenna of a human-portable locator includes a differential amplifier/mixer pair and means for allowing a common-mode “phantom” signal to modulate a...
7911199 Method for eliminating the need to zero and calibrate a power meter before use  
An improved power sensor having an input connector connected to an input port having a center pin and a ground side; an amplifier; first and second detectors; and a thermal stabilization system,...
7893684 Integrated power detector with temperature compensation for fully-closed loop control  
An amplifier circuit comprises a detection power input circuit for receiving an RF signal, and a bias circuit that includes an output for generating a bias signal in response to a reference...
7852063 Integrated power detector with temperature compensation for fully-closed loop control  
An amplifier circuit comprises a detection power input circuit for receiving an RF signal, and a bias circuit that includes an output for generating a bias signal in response to a reference...
7622910 Method and apparatus for AC integrated current sensor  
Integrated current sensors are used in AC electric power systems. An integrated current sensor according to one embodiment comprises: an inductor (101), wherein an AC current passes through the...
7589515 Method for reducing temperature-dependent error in photocurrent sensor, and photocurrent sensor device  
[Problem] To permit reduction in the temperature dependence of a sensor, which is ascribable to the temperature dependence of the Verdet constant of a sensor fiber, at a low cost. [Means for...
7590499 Recording and conveying energy consumption and power information  
Aspects of the invention provide apparatuses, methods, and systems that support measuring and conveying energy consumption by an electrical device. An apparatus includes an energy sensor that...
7372249 Load measurement for a thermal microwave power sensor  
A thermocouple power sensor includes the ability to monitor the value of a RF load resistor. A meter connects to the input of a thermocouple-based RF signal power detector. The apparatus can sense...
7246022 Initiation of differential link retraining upon temperature excursion  
A method includes detecting a change in temperature in an integrated circuit that is coupled to a differential communication link, and responding to the detected change in temperature by...
7239123 Multiplexed dual-purpose magnetoresistive sensor and method of measuring current and temperature  
The present invention determines temperature and current from resistance measurements of a single magnetoresistive sensor. A dual-purpose sensor includes the magnetoresistive sensor having a...
7102376 Power semiconductor module with detector for detecting main circuit current through power semiconductor element  
A power semiconductor module has a detector for detecting main circuit current passing through a power semiconductor element. The detector includes first and second circuit patterns; a bonding...
7089736 Variable nozzle turbo (VNT) solenoid temperature estimator  
A method of creating a solenoid temperature estimator includes operating a solenoid based on a data point including a plurality of operating parameters and determining a temperature of the...
6960926 Method and apparatus for characterizing a circuit with multiple inputs  
A method of characterizing a circuit comprises the steps of measuring a first delay associated with the circuit when the circuit is substantially unloaded; measuring a second delay associated with...
6850859 Sensor drift compensation by lot  
Drift compensation systems and methods are presented for compensating the drift of a sensor within a manufacturing lot. The system comprises a sensor test sample manufactured from a lot of...
6767745 Method for measuring stress levels in polymeric compositions  
A method of measuring inductance or inductive reactance of a sample is provided. The method comprises the steps of: (a) providing an instrument for measuring the inductance or the inductive...
6639395 Current sensor with input/output isolation  
A current sensor and a method for measuring currents on an integrated circuit in an isolated manner. The current sensor uses a Peltier device as a thermal difference generator to generate a first...
6559631 Temperature compensation for an electronic electricity meter  
An electricity meter which, in one embodiment, includes a temperature sensing unit for determining a signal representative of the temperature within the meter is described. In the one embodiment,...
6531860 Integrated power detector with temperature compensation  
A power detector (50) detects a power level of an amplified signal (S20) produced by a power amplifier (16) on the same integrated circuit (100). The power detector compensates for an effect of...
6486661 Sensor bias drift compensation  
A method of removing bias drift from the output signal of a sensor is provided. The method includes sensing a condition with a sensor and generating an output signal, differentiating the output...
6459254 Power sensing RF termination apparatus including temperature compensation means  
A power sensing RF termination comprising a calibration means allows the user to correct for part-to-part variation, miss match loss and output offset. The power sensing RF termination comprises a...
6373237 Electronic scale having a sleep mode in addition to a standby operating mode  
Electronic scale including a line power voltage supply (5); a line switch (9); and a separate voltage supply (20), which is independent of the line powered voltage supply (5) and which supplies at...
6307666 Voltage sensing systems and methods for passive compensation of temperature related intrinsic phase shift  
A small sized electro-optic voltage sensor capable of accurate measurement of high levels of voltages without contact with a conductor or voltage source is provided. When placed in the presence of...
6121766 Current sensor assemblies  
A current sensor assembly of planar form arranged for connection in series with an electrical circuit. The circuit includes a first and second conductor. The sensor assembly includes a first...
6118268 Thermoelectric measuring device  
A thermoelectric measurement converter is disclosed, which forms the output signal as the product of the instantaneous values of two input signals; wherein the measurement converter comprises at...
6084462 Temperature sensing circuits  
A temperature sensing circuit suitable for integration with a power semiconductor device (MOSFET/IGBT) includes temperature-sensing p-n diode means (D1, D2, etc . . . ) integrated together with...
6054848 Method and apparatus for detecting electromagnetic waves  
A detector facilitates visualization of electromagnetic radiation, including radio frequency radiation. The electromagnetic radiation is converted to thermal energy by partial absorption of the...
5901114 Circuit for measuring the cut-off time of an electronic system  
A circuit for measuring the duration of a cut-off period in the power supply to an electronic system, for example the control system of a motor vehicle starter, comprises a voltage splitting...
5640085 Temperature compensation circuit  
A temperature compensation circuit for a power measurement device includes an input sensor, with a temperature-dependent transmission factor (KH,T), connected to a signal processor with a...
5559430 Net radiation sensor  
A system for determining the sag of an overhead power transmission line to prevent flashover to adjacent objects on earth. A small replica of the transmission line conductor is provided and...
5534773 Method for compensating an offset voltage temperature drift in a semiconductor strain gage sensor  
A method for compensating an offset voltage temperature drift in a semiconductor strain gage sensor in which a temperature-sensitive power supply is modeled as the one for providing the output...
5461307 Electro-optical current sensing system and method for sensing and avoiding thermally induced measurement error therein  
An electro-optics current sensing system for sensing and avoiding thermally induced measurement errors in a current sensor includes a beam generator, such as a light emitting diode or a laser...
5461309 Device for measuring temperature using a Rogowski coil  
A Rogowski coil is used as a precise current and temperature measuring device (in particular a device that is highly insensitive to temperature variations). The Rogowski coil is of the type...
5451865 Method and apparatus for sensing an input current with a bridge circuit  
A current sensor includes first and second branches interconnected by a center conductor magnetically coupled to an annular current comparator for producing an output signal related, in magnitude...
5379630 Thermal conductivity detector  
In one embodiment, a thermal conductivity detector in a gas chromatograph is provided with a sensor connected in a resistive bridge with an alternating voltage applied to the bridge. Changes in...
5341088 System for rating electric power transmission lines and equipment  
A system for determining the current carrying capability of one or more overhead power transmission lines monitors one or more spans of each line on real-time basis and identifies the span having...
5313165 Temperature-compensated apparatus for monitoring current having controlled sensitivity to supply voltage  
An apparatus for monitoring current through a lamp circuit that uses a series resistance shunt in the circuit with one end connected to a current source and the second end connected to the lamp....
5247244 Electro-optic voltage measuring system with temperature compensation  
As the dielectric constant and the halfwave voltage of electro-optic crystals having a fourfold axis of rotary inversion are oppositely dependent on the absolute temperature, but their product is...
5193393 Pressure sensor circuit  
A pressure sensor circuit (10A) is disclosed which preferably utilizes a piezoresistive pressure transducer (11A) having a substantial temperature coefficient of resistance to provide an inherent...
5113336 Temperature compensated level detector  
A temperature compensated level detector is disclosed in which a voltage multiplying rectifier is provided for rectifying and smoothing a high-frequency input voltage to obtain a DC output, and a...

Matches 1 - 50 out of 151 1 2 3 4 >