摘要:
A power conversion device includes a power conversion circuit including a temperature sensor configured to detect a temperature at a sensor position and a switch configured to switch a connection on and off at a switch position separated from the sensor position; a loss calculation processing circuitry configured to calculate a power loss in the switch; a loss correction processing circuitry configured to correct a calculation result of the power loss on the basis of a detection result of the temperature at the sensor position; a temperature correction processing circuitry configured to correct the detection result of the temperature on the basis of the calculation result of the power loss; and a temperature estimation processing circuitry configured to estimate a temperature at the switch position on the basis of a corrected calculation result of the power loss and a corrected detection result of the temperature.
摘要:
An integrated circuit includes a power amplifier and a power detector. The power detector has a VDET node and a VREF node. A first filter coupled to the VDET node outputs a signal VDET onto a VDET terminal. A second filter coupled the VREF node outputs a signal VREF onto a VREF terminal. The signals VDET and VREF are generated so that the voltage difference between the two signals varies in proportion to the RF output power magnitude with an accuracy of ±0.1 decibels over a −45° C. to +85° C. temperature range. An amount of the RF signal as output by the power amplifier is coupled onto the VDET node and is detected by a half-wave rectifying RF detector diode. The diode has a capacitance that increases with temperature, so a temperature compensation circuit that has an admittance that decreases with temperature is coupled in parallel with the detector diode.
摘要:
Techniques described herein address these and other issues by utilizing two or more sensors to take temperature measurements from which a temperature-differential or instantaneous temperature rate-of-change, can be determined. In turn, this can be used to make a highly accurate model of the relationship between the temperature, temperature-differential, and clock circuitry frequency, to accurately estimate the frequency rate-of-change for frequency correction/compensation.
摘要:
A measurement circuit for monitoring at least one parameter of an input signal received from an external signal source includes at least one first measurement element coupled to the input signal and configured to provide an initial measurement signal indicative of a respective one or more of the at least one parameter of the input signal. At least one second measurement element is positioned proximate to the at least one first measurement element and configured to have a characteristic indicative of a stress condition associated with the at least one first measurement element. A compensation circuit is responsive to an output of the at least one second measurement element and to a reference signal to generate a compensation factor that is applied to the initial measurement signal to provide a corrected measurement signal.
摘要:
A system for energy metering with temperature monitoring that includes a plurality of current sensors, suitable to sense a changing current in a respective power cable, that provide a respective first output. The energy metering system includes a support and current sensors interconnected to the support at spaced apart locations along the support. A temperature sensor that provides a second output and is interconnected to the support. The energy metering system receives the respective first output and the second output and determines characteristics of the energy system based upon the second output.
摘要:
The present invention relates to a platform for the dyeing industrial, comprising a factory energy management system linked with an optimized production management system, in which the platform enables an energy management system (EMS) to be applied to dyeing industrial processes that over-consume energy, so that the consumption of energy can be reduced by an optimized production management process, whereby the proportion of energy cost in the production cost can be reduced, thereby ensuring industrial competitiveness. The platform according to the present invention comprises a communication interface platform, an energy optimization technology analysis platform, and a monitoring and analysis status platform.
摘要:
A remote radio frequency (RF) power sensing unit including a first module and a second module. The first module may be configured to generate a digital output representative of a power level of a radio frequency (RF) signal. The second module may be configured to convert the digital output of the first module to a digital signal communicating the power level and transmit the digital signal communicating the power level over a wireless communication channel using a wireless protocol.
摘要:
System and methods for determining battery system power capability in a vehicle are presented. Peak power capability estimation systems and methods disclosed herein may compensate regressed parameters in a battery system circuit model for an effect of current magnitude. Utilizing the disclosed methods for accurately estimating peak power capability of a battery system may provide for, among other things, improved battery system performance modeling and/or improved battery system control and management decisions.
摘要:
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 resistance due to temperature variations. The temperature sensing loop detects a temperature of the BATFET and regulates the gate voltage of the BATFET based on the detected temperature in order to compensate for changes in the BATFET's resistance. The temperature sensing feedback loop maintains the BATFET at a constant resistance for current sensing through negative feedback control. The BATFET and temperature sensing loop can be provided as components of an on-chip fuel gauging application for a UE.
摘要:
Disclosed herein is an electronic apparatus, including an electric power receiving portion receiving an electric power from a power feeding apparatus by using a magnetic field, and a detecting portion detecting presence or absence of a foreign object between said power feeding apparatus and said detecting portion.