110 results about "Power detector" patented technology

Wireless circuitry may include a transmission line that carries a signal and a power detector that measures the signal. The detector may include a rectifier coupled to a comparator over a differential path. An offset calibrating digital-to-analog converter (OSDAC), a reference generator, and a multiplexer may be disposed on a negative line of the differential path. The OSDAC may produce an offset-compensated voltage by adding different offset voltages to a voltage on the second line over time. The reference generator may generate a set of threshold voltages by adding different reference voltages to the offset-compensated voltage. A temperature sensor may adjust the reference voltages used to generate the threshold voltages based on a temperature of the power detector. The multiplexer may route different threshold voltages to a negative input of the comparator.

Wireless circuitry can include a radio-frequency amplifier configured to operate in a plurality of different mode, configuration, or bias settings, a power detector coupled to an output of the radio-frequency amplifier, a plurality of power integrators, and a switching circuit having an input configured to receive a measured power level from the power detector and having outputs coupled to the plurality of power integrators. The switching circuit can have a switch state that is adjusted based on a current mode, configuration, or bias setting for the radio-frequency amplifier. The power integrators may be part of multiple power control loops. The power control loops can be coupled to additional switching circuitry activated based at least party on the current mode, configuration, or bias setting and a subsequent mode, configuration or bias setting for the radio-frequency amplifier.

Wireless circuitry may include a transmission line that carries a signal and a power detector that measures the signal. The detector may include a rectifier coupled to a comparator over a differential path. An offset calibrating digital-to-analog converter (OSDAC), a reference generator, and a multiplexer may be disposed on a negative line of the differential path. The OSDAC may produce an offset-compensated voltage by adding different offset voltages to a voltage on the second line over time. The reference generator may generate a set of threshold voltages by adding different reference voltages to the offset-compensated voltage. A temperature sensor may adjust the reference voltages used to generate the threshold voltages based on a temperature of the power detector. The multiplexer may route different threshold voltages to a negative input of the comparator.

The invention discloses a low-power-consumption adaptive antenna gain control device for a navigation system, and belongs to the technical field of navigation communication. Comprising an adjustable LNA array, a signal quality monitoring module and an MCU control unit. The adjustable LNA array is used for receiving a satellite signal and dynamically adjusting gain according to a control signal output by the MCU control unit; the signal quality monitoring module integrates a power detector and a signal-to-noise ratio analyzer, and is used for collecting the power, the signal-to-noise ratio and the multipath interference intensity of an input signal in real time, and generating a state vector S based on the collected parameters; and the MCU control unit is used for executing an adaptive gain control algorithm, calculating an optimal gain value based on the state vector S, and dynamically adjusting the gain configuration of the LNA array. Through the low-power-consumption LNA array and a self-adaptive gain control algorithm, high-precision signal receiving of the Beidou / GNSS terminal in a complex environment is realized, power consumption is remarkably reduced, and positioning reliability is improved.

Wireless circuitry can include a radio-frequency amplifier configured to operate in a plurality of different mode, configuration, or bias settings, a power detector coupled to an output of the radio-frequency amplifier, a plurality of power integrators, and a switching circuit having an input configured to receive a measured power level from the power detector and having outputs coupled to the plurality of power integrators. The switching circuit can have a switch state that is adjusted based on a current mode, configuration, or bias setting for the radio-frequency amplifier. The power integrators may be part of multiple power control loops. The power control loops can be coupled to additional switching circuitry activated based at least party on the current mode, configuration, or bias setting and a subsequent mode, configuration or bias setting for the radio-frequency amplifier.

An antenna module may include antennas, RF chains connected to the antennas, a splitter / combiner connected to the RF chains, a mixer configured to upconvert an IF signal input to the antenna module into a transmission RF signal and output the upconverted signal to the splitter / combiner and / or to downconvert a reception RF signal which is a combination of signals from the RF chains provided from the splitter / combiner, a plurality of first couplers connected between the RF chains and the antennas, a second coupler for measuring a magnitude corresponding to a transmission RF signal before split by the splitter / combiner and / or the reception RF signal combined by the splitter / combiner, and a power detector configured to provide a plurality of magnitudes of a plurality of signals from the plurality of first couplers and a magnitude of a signal from the second coupler.

An apparatus for wireless communications includes a power amplifier, a low-noise amplifier, a power detector, and a transformer. The transformer includes a first inductor coupled to an output of the power amplifier, and a second inductor coupled to an antenna, wherein the second inductor is magnetically coupled with the first inductor. The transformer also includes a third inductor coupled to an input of the low-noise amplifier, wherein the third inductor is magnetically coupled with the second inductor. The transformer also includes a coupling inductor coupled to an input of the power detector, wherein the coupling inductor is magnetically coupled with at least one of the first inductor and the second inductor.

The invention relates to a self-powered detector on-pile test device and method.The device comprises an outer support fixed in a test dry hole channel and an inner support coaxially nested in an inner cavity of the outer support, the outer diameter of the outer support and the inner diameter of the test dry hole channel form micro-tight fit, and the inner support can rotate around the axis relative to the outer support; a first mounting position for mounting at least one standard self-powered detector is arranged on the outer support, a second mounting position for mounting at least one self-powered detector to be detected is arranged on the inner support, and a cross arm is arranged at the bottom of the outer support and used for being in contact with the lower end of the inner support so as to limit the axial insertion position of the inner support. According to the on-pile test device and method for the self-powered detector, single-point calibration errors caused by uneven radial distribution of neutron fluence rates can be effectively eliminated or greatly reduced, and the calibration precision and the representativeness of results are remarkably improved.

The invention provides a receiving module, an operation method thereof and user equipment using the receiving module. The receive module includes a plurality of IF paths associated with the plurality of RF paths, at least one multiplexer (MUX), and at least one power detector (PD). Each IF path includes a transimpedance amplifier (TIA) and a low pass filter (LPF). The LPF is coupled to an output of the TIA. The at least one multiplexer is coupled to the plurality of IF paths. At least one power detector (PD) selectively couples at least two of the IF paths through at least one multiplexer to alternately detect signal strength of respective nodes between the TIA and the LPF in the respective IF paths. The at least two IF paths are associated with at least two RF paths of the plurality of RF paths having the same carrier frequency.

The application relates to the technical field of electrical engineering, in particular to an intelligent power measuring device for generator control, which comprises a generator, a power detector is arranged on one side of the generator, a connecting hole is formed in one side of the power detector, a connecting line is fixedly connected to the generator, the other end of the connecting line is used for being connected with the power detector, a connecting column is fixedly connected to the inside of the power detector, the connecting column is located on one side of the connecting hole, a rotating plate is sleeved on the connecting column, one end of the rotating plate is rotationally connected with the connecting column, the other end of the rotating plate is fixedly connected with a fixing column, and the fixing column is used for winding the connecting line on the connecting column; when the connecting line on the generator is connected with the power detector, the connecting line can be automatically wound on the connecting column under the action of the fixing column.

The application discloses a method and system for quantitatively analyzing self-insulation resistance shunt effect of a self-powered detector, and the design steps are as follows: a circuit model of the self-powered detector is established according to a working principle of the detector; specific parameters of each element in the circuit are calculated according to geometric structure and physical parameters of the detector; a state space equation in a matrix form is established according to a current generation mechanism of the self-powered detector in a radiation field and the circuit model, and a system state transition matrix of the self-powered detector system is established by solving a matrix index; and influences of geometric dimensions and physical parameters of the detector on the insulation resistance and the shunt effect thereof are analyzed according to the system state transition matrix. The method can quantitatively calculate the shunt effect of the insulation layer resistance of the self-powered detector with different structures and parameters, and can accurately calculate a change of a capacitive current with time, thereby providing guidance for design and application of the detector.

ABSTRACT:A power transmitter (101) transfers power to a power receiver (105) and comprises a power input (209) receiving supply power. A power detector (211) detects a restoring of the supply power following an outage, and a presence detector (213) detects the presence of the power receiver when supply power is being restored. A first communicator (207) can communicate with a second communicator (509) of the power receiver (105) using a short range communication channel. A message circuit (215) transmits a power restore message to the second communicator (509) when supply power is being restored. A user action detector (217) detects a power receiver user action and a controller (205) arranged to initiate a power transfer to the power receiver after power restoration in response to the detection of the user action and to inhibit initiation of the power transfer after power restoration if the user action is not detected. The power receiver (105) can generate a user alert when receiving the power restore message.

This application discloses a core power prediction method and apparatus, a core monitoring method and system, relating to the field of nuclear industry technology. The core power prediction method includes: acquiring target power detector data for a target core; the target power detector data includes values ​​from multiple power detectors; processing the target power detector data using a target power prediction model to obtain a predicted power value for the target core; wherein the target power prediction model employs a data grouping processing method, trained using historical power detector training data and their corresponding first historical power values. According to embodiments of this application, this core prediction method can monitor core power using a small number of detectors while ensuring the accuracy of core power prediction.

A power detector is disclosed. The power detector includes a primary-side sense circuit configured to generate a sense signal representative of an output voltage of a flyback converter. The power detector also includes a primary-side reference generator configured to generate a reference signal representative of an average output current of the flyback converter. The power detector further includes a primary-side power calculation circuit configured to generate an output-power signal in response to the sense signal and the reference signal.

The invention provides a PAM4 signal equalizer based on automatic gain control, which comprises a continuous time linear equalizer CTLE, a variable gain amplifier VGA, a negative capacitor I, a negative capacitor II, a power detector, an encoder, an eye diagram parameter calculation module, a digital time converter, a pipelined analog-to-digital converter and a counter, the first input end of the continuous time linear equalizer CTLE is connected to an input signal DIN, the second input end VCTLE1 of the continuous time linear equalizer CTLE is connected to the first output end of the encoder, the third input end VCTLE2 of the continuous time linear equalizer CTLE is connected to the second output end of the encoder, and the output end N1 of the continuous time linear equalizer CTLE is connected to the input end of the first negative capacitor and the first input end of the VGA. According to the invention, optimization and real-time adaptive adjustment for PAM4 characteristics can be realized, the adaptability and the anti-noise capability can be improved, and the signal recovery capability and the signal integrity can be improved.

The application relates to the technical field of integrated circuit design, and provides a radio frequency power detector chip layout structure and a radio frequency power detector chip, the layout structure comprises a first layout area, a second layout area and a third layout area; the first layout area is in an L shape and is formed with a first embedded groove; the third layout area is in a concave shape and is formed with a second embedded groove; the left and right sides of the second layout area are respectively embedded into the first embedded groove and the second embedded groove. According to the application, the layout structure of the radio frequency power detector chip is divided into three different layout areas, the pads needing electrostatic protection are uniformly arranged in the first layout area, the pads not needing electrostatic protection are uniformly arranged in the third layout area, and the main components of the radio frequency power detector chip are uniformly arranged in the second layout area, so that the layout structure is more compact between different layout areas, and the rationality and compactness during layout of multiple layout areas are improved.

The application relates to the technical field of communication, and discloses a single-chip integrated adjustable power indicator system ultra-wideband power detector. out The power detector includes a power detection circuit, a temperature compensation circuit and a power indication circuit which are integrated on the same chip, the power detection circuit is used for detecting the input radio frequency signal and outputting a detection voltage V ref The temperature compensation circuit is used for outputting a reference voltage V ref The temperature compensation circuit and the power detection circuit have matched temperature characteristics to offset the influence of temperature change on the detection voltage; the power indication circuit is connected with the output end of the power detection circuit and the output end of the temperature compensation circuit, and is used for outputting an indication signal according to the power threshold set by a user. The frequency range of the application covers 0.5-50 GHz, the power detector detection frequency band is widened, the detection level fluctuation caused by temperature change is compensated, and the adjustable power value indication system is single-chip integrated.

This invention relates to an embedded integrated control system for the luffing mechanism of a tower crane. Vibration detectors and stress detectors are installed within the luffing mechanism to monitor the luffing process in real time. The luffing controller connects to a calculation module, a luffing motor, a force detector, and a vibration detector. The luffing motor sends data collected by the power detector, force detector, and vibration detector to the calculation module. The calculation module inputs the data into a computational model to obtain the stability coefficient of the running trolley. This provides more comprehensive monitoring factors, higher monitoring stability, and better accuracy. The vibration sensors are divided into three types to detect vibrations in three directions, resulting in more accurate detection. The calculation fully considers the influence of vibration amplitudes in different directions, multiplying the vibration amounts in different directions by corresponding coefficients, leading to more accurate detection and more stable calculation results.

The utility model discloses a device for assisting in balancing weight leveling of a support, which relates to the technical field of testing equipment in the semiconductor industry and comprises a bottom plate, a driver, a PLC (programmable logic controller), a motor, a power detector, a tri-color lamp, a speed reducer and a torsion limiter, the motor is arranged on one side of the bottom plate, the speed reducer is arranged on the upper side of the motor, the driver is arranged on one side of the speed reducer, and the PLC is arranged on the other side of the speed reducer. A PLC is arranged on the lower side of the motor, a tricolor lamp and a power detector are arranged at one end of the bottom plate, a torsion limiter is arranged on the other side of the bottom plate, the motor is connected with a driver and a speed reducer, the speed reducer is connected with the torsion limiter, the torsion limiter is connected with a power shaft of the auxiliary support, and the PLC is connected with the power detector and the tricolor lamp. Through cooperative work of the PLC, the power detector and the three-color lamp, an operator can quickly determine the weight adjusting direction of the weight box according to the colors presented by the three-color lamp in real time, the debugging time of a single support is greatly saved, the production and assembly speed is remarkably increased, and then the overall production efficiency is improved.

A power transmitter (101) transfers power to a power receiver (105) and comprises a power input (209) receiving supply power. A power detector (211) detects a restoring of the supply power following an outage, and a presence detector (213) detects the presence of the power receiver when supply power is being restored. A first communicator (207) can communicate with a second communicator (509) of the power receiver (105) using a short range communication channel. A message circuit (215) transmits a power restore message to the second communicator (509) when supply power is being restored. A user action detector (217) detects a power receiver user action and a controller (205) arranged to initiate a power transfer to the power receiver after power restoration in response to the detection of the user action and to inhibit initiation of the power transfer after power restoration if the user action is not detected. The power receiver (105) can generate a user alert when receiving the power restore message.

The utility model relates to the technical field of electric power detectors, and discloses an electric power detector, which comprises a tester main body, a plurality of anti-slip strips are fixedly arranged on the outer wall of the top of a socket testboard, a fixed rod is fixedly arranged in the tester main body, a display screen is arranged in the tester main body, and a power supply is arranged in the display screen. The interior of the tester main body is slidably connected with a baffle plate, and the interior of the tester main body is in threaded connection with a bolt. According to the electric power detector, an anti-slip strip is rotated to drive a socket test board to rotate and drive a push rod to rotate, an arc-shaped plate and a spring are matched together, a certain damping effect is achieved, a rotating shaft is prevented from rotating too fast, and due to the arrangement of a fixing rod and the push rod, the situation that a bottom power line is wound and damaged due to the fact that the rotating shaft and the socket test board rotate by 180 degrees is avoided; the socket measuring structure can achieve the effect of convenient use, and solves the problems that the socket measuring structure cannot rotate, is possibly limited in actual use, and cannot conveniently inspect and measure electric power in some positions with small spaces.

The present disclosure relates to an error vector magnitude detector for a wireless transmitter. An amplifier of a transmitter includes an input that receives an input signal and generates an amplified signal at an output. A digital power meter coupled to the input of the amplifier generates an estimated amplified signal and determines a peak power and an average power of the estimated amplified signal. An output power detector coupled to the output of the amplifier determines a peak power and an average power of the amplified signal. A controller coupled to the digital power meter and the output power detector determines an estimated crest factor based on the peak power and the average power of the estimated amplified signal, determines an amplified crest factor based on the peak power and the average power of the amplified signal, and determines an error vector magnitude based on the estimated crest factor and the amplified crest factor. The controller, which is also coupled to the amplifier, then adjusts operation of the amplifier based on the error vector magnitude.

A power detection circuit includes a power detector that detects output power of a power amplifier and outputs in two ways of a voltage output and a current output as a detection result, and a voltage comparison circuit that compares the voltage output of the power detector with a predetermined reference voltage and outputs a power detection signal that is at a level "H" in a case where the voltage output is higher than the reference voltage and is at a level "L" in a case where the voltage output is lower than the reference voltage.

This invention discloses an integrated coaxial multi-layered annular emitter self-powered detector, comprising a probe, a connecting sleeve, and a transmission cable. The probe includes a collector, an insulating layer, and an emitter arranged coaxially from the outside in. The insulating layer includes a side insulating layer, a bottom insulating layer, a top insulating layer, and insulators. Multiple insulators and emitters are present, and the emitters and insulators are alternately stacked coaxially to form a sandwich structure. The transmission cable includes a cable shell and cable cores, with an insulating layer filling the space between the cable shell and the cable cores. There are multiple cable cores, each connected to a corresponding emitter. The connecting sleeve is an annular structure with different diameters at both ends; the larger end is welded to the open end of the collector, and the smaller end is welded to the cable shell. This invention enables the measurement of neutron flux distribution and neutron energy spectrum under the confined space of a reactor core.

The invention relates to a radio frequency power detector with offset and temperature compensation. Wireless circuitry may include a transmit line carrying a signal and a power detector measuring the signal. The detector may include a rectifier coupled to the comparator through a differential path. An offset calibration digital-to-analog converter (OSDAC), a reference generator, and a multiplexer may be disposed on a negative line of the differential path. The OSDAC may generate an offset compensation voltage by superimposing different offset voltages over time to a voltage on the second line. The reference generator may generate a set of threshold voltages by superimposing different reference voltages to the offset compensation voltage. A temperature sensor may adjust the reference voltages used to generate the threshold voltages based on a temperature of the power detector. The multiplexer may route different threshold voltages to the negative input of the comparator.

An apparatus includes a first coupler that couples a first portion of a test signal to a first input of first beam forming integrated circuit (BFIC) electronics and second portion of the test signal to second input of second BFIC electronics. A second coupler combines a first output signal from the first BFIC electronics and a second output signal from the second BFIC electronics. The collective phase offset due to the first coupler and the second coupler is 180 degrees. During a test mode, a controller eliminates, or at least reduces, a difference in phase between the first and second BFIC electronics by adjusting a phase shifter in at least one of the BFIC electronics. The BFIC electronics have the same phase offset when the power detected by a power detector at the second coupler output is zero. The controller applies the control signals during beam forming operation of the electronics.

A receiving module, an operation method thereof and a user equipment using the same are provided. The receiving module comprises a plurality of IF paths associated with a plurality of RF paths, at least one multiplexer (MUX) and at least one power detector (PD). Each of the IF paths comprises a transimpedance amplifier (TIA) and a low-pass filter (LPF). The LPF is coupled to an output of the TIA. The at least one multiplexer is coupled to the IF paths. The at least one PD is selectively coupled to at least two IF paths of the IF paths through the at least one multiplexer, to alternately detect a signal strength of a corresponding node between the TIA and the LPF in a corresponding IF path. The at least two IF paths are associated with at least two RF paths of the RF paths with the same carrier frequency.

The application discloses a method for quickly obtaining a steady-state space electric field of an insulation layer of a self-powered detector, and comprises the following steps: obtaining radiation field information and detector information at a position where a self-powered neutron detector is located, and simulating to obtain an electric charge deposition amount generated by irradiation current in different radius intervals per unit time of the detector; according to the law of conservation of electric charge, estimating an electric charge loss amount generated by conduction current in different radius intervals of an insulator per unit time under a steady-state condition; combining Ohm's law to establish an expression of the electric charge loss amount generated by the conduction current about an electric field intensity under the steady-state condition, and combining a boundary condition to obtain an electric field intensity distribution, an electric charge density distribution and a potential distribution. The application can effectively improve the calculation efficiency and realize efficient simulation of the sensitivity of the self-powered neutron detector.

Methods, systems, and devices for a radio frequency (RF) power detector are described. An example circuit may include a rectifier having differential RF input terminals and an amplifier configured to generate a voltage that is logarithmically related to the rectifier output current. The rectifier may include a first rectifier core configured to generate a first current reference associated with a difference between the differential RF input terminals and a second rectifier core configured to generate a second current reference associated with a common mode of the differential RF input terminals. The rectifier may further include a third rectifier core configured to generate a first reference voltage that is based at least in part on a bias voltage of the differential RF input terminals a fourth rectifier core configured to generate a rectifier output current that is based at least in part on the first and second current references.

The application discloses a three-dimensional temperature measuring absorption cavity type laser power detector, which adopts a three-dimensional temperature measuring element to measure the temperature distribution on the surface and inside of an absorption cavity, and realizes accurate measurement of laser power. The laser power detector comprises a reflecting cone, an absorption cavity, a three-dimensional temperature measuring assembly, a shell and the like. The reflecting cone is installed at the bottom of the absorption cavity, and the tip of the cone is opposite to the direction of a laser incident port. The absorption cavity has a smooth cylindrical or V-shaped circular groove structure, and the inner wall surface of the absorption cavity is provided with a high-absorptivity, good-heat-conductivity and high-temperature-resistant coating. A series of through holes are distributed on the absorption cavity, and the three-dimensional temperature measuring assembly is installed in the through holes. The periphery of the absorption cavity is processed into a fin structure and is placed in a flowing water environment. The shell is provided with holes for water inlet and water outlet, so that water cooling and heat dissipation are realized. The laser power detector can not only improve the spatial uniformity and accuracy of power measurement, but also is convenient to install and integrate.