摘要:
L'invention concerne un procédé d'estimation d'une tension périodique, telle qu'une tension d'entrée, de l'une des phases d'un circuit électrique au moins biphasé comportant pour chacune de ses phases un capteur de tension, chaque capteur de tension étant apte à fournir un signal représentatif (VAr, VBr, VCr) d'au moins une partie de période de la tension périodique (VA, VB, VC) de ladite phase. Le procédé comportant les étapes suivantes de : mesure du signal représentatif (VAr,VBr,VCr) à partir du capteur de tension ; amplification du signal représentatif (VAr,VBr,VCr) par un gain déterminé en l'absence de défaut électrique du circuit électrique (1) et sur la base d'une tension de référence commune à l'ensemble des phases du circuit électrique (1) ; estimation à partir du signal représentatif amplifié (VAc, VBc, VCc) de la tension périodique (VA,VB,VC). L'invention concerne en outre un dispositif d'estimation (10) d'une tension et un circuit électrique comportant un tel dispositif (1).
摘要:
Disclosed is a device for detecting an output current of an inverter. The device for detecting an output current of an inverter according to the present disclosure includes a shunt resistor connected to an output end of a capacitor of a direct current (DC) link; a detector connected to the shunt resistor and configured to detect the output current; and a controller configured to control a sampling timing of a current in the detector.
摘要:
A battery management apparatus according to an embodiment of the present disclosure includes a side reaction determining unit configured to determine a target peak in a differential profile representing the corresponding relationship between voltage and differential capacity of a battery, and determine whether a side reaction occurs in the battery by comparing a criterion peak of a preset criterion profile with the target peak; and a side reaction cause determining unit configured to determine a resistance pattern of the battery with respect to a criterion voltage region in a resistance profile representing the corresponding relationship between voltage and resistance of the battery, and determine an occurrence cause of the side reaction based on the determined resistance pattern.
摘要:
A peak current detecting and non-volatile storage device (10) has a substrate (12) having a hole (18). Individual magnetic field detecting elements (23-25) are located on the substrate and are radially displaced from the hole. A conductor (30) extends through the hole. The magnetic field detecting elements are magnetized to a predetermined state. Current carried by the conductor creates a magnetic field around the conductor which alters the predetermined state of magnetization of the magnetic field detecting devices. Various readout techniques may be used to determine the altered state of magnetization which is representative of the magnetic field and may be easily related to the current.
摘要:
A battery management system includes a battery monitoring integrated circuit (BMIC) that diagnoses a state of a battery, a first overvoltage detection unit that generates a first detection signal by comparing a battery voltage of the battery with a first reference voltage, a second overvoltage detection unit that generates a second detection signal by comparing the battery voltage with a second reference voltage different from the first reference voltage, and a micro controller unit (MCU) that controls the battery according to a diagnosis signal from the BMIC and diagnoses an abnormality of an apparatus according to the first and second detection signals, and a battery management method.
摘要:
A fast charging method for an electronic device is disclosed, where the electronic device has a USB interface, and the method includes: when it is determined that the electronic device has a successful communication handshake with a USB host device by using the USB interface, obtaining, by means of measurement according to a preset charging current threshold, a corresponding charging data set of the electronic device under the charging current threshold, where the charging current threshold includes at least a first charging current threshold and a second charging current threshold, and the charging data set includes at least a corresponding first charging voltage value and a corresponding first charging current value of the electronic device under the first charging current threshold, and a corresponding second charging voltage value and a corresponding second charging current value of the electronic device under the second charging current threshold; determining, according to the charging data set, a maximum charging current value corresponding to the electronic device; and setting the determined maximum charging current value as a third charging current threshold of the electronic device, and controlling charging of the electronic device according to the third charging current threshold. The present invention implements safe and fast charging, and improves the charging efficiency.
摘要:
Es wird eine Schaltanordnung (100) zur Ermittlung von Messdaten in Bezug auf eine Netzspannung (122) eines elektrischen Geräts beschrieben. Die Schaltanordnung (100) umfasst einen Konvertierungs-Transistor (104) und einen Referenz-Widerstand (110), die in Reihe zwischen der Netzspannung (122) und einem Referenz-Potential (121) angeordnet sind, so dass an einem Messpunkt zwischen dem Konvertierungs-Transistor (104) und dem Referenz-Transistor (110) eine von der Netzspannung (122) abhängige Messspannung (124) bereitgestellt wird, wenn der Konvertierungs-Transistor (104) zumindest teilweise geschlossen ist. Außerdem umfasst die Schaltanordnung (100) eine Steuereinheit (101) mit zumindest einem Messeingang (141, 142), wobei der zumindest eine Messeingang (141, 142) mit dem Messpunkt gekoppelt ist, so dass durch die Steuereinheit (101) Messdaten in Bezug auf die Messspannung (124) erfasst werden können. Die Steuereinheit (101) ist eingerichtet, auf Basis der Messdaten einen Messzeitraum (204) zur Messung von Messdaten in Bezug auf einen Scheitelpunkt der Netzspannung (122) zu bestimmen. Außerdem ist die Steuereinheit (101) eingerichtet, den Konvertierungs-Transistor (104) in Abhängigkeit von dem Messzeitraum (204) anzusteuern, um über den zumindest einen Messeingang (141, 142) Messdaten in Bezug auf den Scheitelpunkt der Netzspannung (122) zu erfassen.
摘要:
A fast charging method for an electronic device is disclosed, where the electronic device has a USB interface, and the method includes: when it is determined that the electronic device has a successful communication handshake with a USB host device by using the USB interface, obtaining, by means of measurement according to a preset charging current threshold, a corresponding charging data set of the electronic device under the charging current threshold, where the charging current threshold includes at least a first charging current threshold and a second charging current threshold, and the charging data set includes at least a corresponding first charging voltage value and a corresponding first charging current value of the electronic device under the first charging current threshold, and a corresponding second charging voltage value and a corresponding second charging current value of the electronic device under the second charging current threshold; determining, according to the charging data set, a maximum charging current value corresponding to the electronic device; and setting the determined maximum charging current value as a third charging current threshold of the electronic device, and controlling charging of the electronic device according to the third charging current threshold. The present invention implements safe and fast charging, and improves the charging efficiency.
摘要:
The present disclosure describes a circuit for managing power and heat. The circuit includes a motherboard voltage regulator to supply a current to a loadline. The circuit includes a sense point coupled to the loadline, the circuit to measure a sensed voltage at the sense point. The circuit also includes a comparator to compare the sensed voltage to a reference voltage. An output of the comparator is used to indicate a level of current being provided by the motherboard voltage regulator.