摘要:
A method (300) and system (600) of adjusting a charging current to one or more cells (601) is provided. The method includes obtaining (301) a plurality of charging time periods, where each charging time period defined as a time period required to charge the one or more cells with a predefined current at one of a plurality of different temperatures. A temperature of the one or more cells is determined (302). A predetermined current is scaled (306) by a quotient of a first charging time period defined by a first one of the plurality of different temperatures divided by a second charging time period defined by a second one of the plurality of different temperatures to obtain a magnitude of the charging current. The cells are charged (307) with the charging current at the magnitude to more rapidly charge the one or more cells at temperatures above room temperature.
摘要:
The invention relates to a device (2) for charging a motor-driven device battery (5). Said charging device (2) includes: a first conversion module (3); a second conversion module (4); and a means (6) for controlling the first conversion module (3). The first conversion module (3) is suitable for converting an input AC current into an intermediate current and supplying said intermediate current to the second conversion module (4). The second conversion module (4) is suitable for converting the intermediate current into an output current and supplying said output current to the battery (5). The intermediate current is direct current, and the output current is also direct current. The controlling means (6) is suitable for adjusting the voltage of the intermediate current on the basis of operating parameters of the second conversion module (3).
摘要:
A charging controlling system includes an input terminal, an output terminal, a battery terminal, and a switch terminal. The charging controlling system includes a coil connected to the switch terminal at a first end thereof. The charging controlling system includes a resistor connected to a second end of the coil at a first end thereof and to the battery terminal at a second end thereof. The charging controlling system includes a capacitor connected between the second end of the coil and the ground. The charging controlling system includes a diode connected to the switch terminal at a cathode thereof and to the ground at an anode thereof. The charging controlling system includes a charging controlling circuit that controls charging of the battery.
摘要:
An apparatus and a method for wireless power reception include converting a received wireless power to a wireless power for charging using a synchronous rectifier and a direct current/direct current (DC/DC) converter having a structure providing a high efficiency and low heat generation even when a high charging current is supplied.
摘要:
A fast response time, self-activating, adjustable threshold limiter including a limiting element LE, a first coupling element CE1 electrically connected from a signal node of LE to a control input of LE, and a second coupling element CE2 electrically connected from the control input of LE to a nominal node of LE. An initial bias (control) voltage is also supplied to the control input of LE to dynamically control the limiting threshold for the limiter.
摘要:
The present invention discloses a bi-directional switching regulator and a control circuit of the bi-directional switching regulator. The bi-directional switching regulator includes a power stage, an operation circuit, and a power path management circuit. The operation circuit generates a first operation signal to control a boost conversion operation or a buck conversion operation of the power stage. The power path management circuit includes a power path switch electrically connected between the output terminal and the battery, for controlling a charging operation from the output terminal to the battery. The operation circuit generates the first operation signal so that: (1) the output voltage is determined by a sum of a safety offset and the battery voltage; or (2) the output voltage is determined by a higher one between a predetermined voltage level and the sum of the safety offset and the battery voltage.
摘要:
A charging apparatus is provided, and relatively high charging efficiency is still maintained when a charging current changes. The charging apparatus includes: a voltage regulator; a charging power tube, where a source electrode of the charging power tube is connected to an output end of the voltage regulator and a drain electrode of the charging power tube is connected to a positive electrode of a battery, and the charging power tube is configured to generate a charging current; a charging controller, where an output end of the charging controller is connected to a gate electrode of the charging power tube, and the charging controller is configured to control the charging power tube to adjust the charging current; and a reference voltage module, configured to obtain the charging current and a battery voltage and output a reference voltage.
摘要:
The present invention discloses a charge control circuit for supplying power from an external power source to a first common node and charging a second common node from the first common node. A regulator circuit is coupled between the external power source and the first common node, and a transistor is coupled between the first common node and the second common node. The present invention detects an operation parameter of the transistor and controls an internal voltage source to generate a non-predetermined voltage difference accordingly. When the sum of the voltage at the second common node and the non-predetermined voltage is equal to or higher than the reference voltage, the voltage at the first common node is regulated to a level higher than the voltage at the second common node, and the transistor is in an optimum conductive state.
摘要:
A hybrid vehicle (100) includes a voltage step-up device (17). The voltage step-up device (17) is provided between driving devices (18, 20) and an electrical storage device (16), and steps up input voltages of the driving devices (18, 20) to a voltage of the electrical storage device (16) or above. An HV-ECU (36) determines whether it is possible to reduce a CO2 emissions for a predetermined travel route by increasing the voltage of the electrical storage device (16). Then, when it is determined that it is possible to reduce the CO2 emissions, the HV-ECU (36) controls an SOC of the electrical storage device (16) so as to increase the SOC at a start of the travel route.
摘要:
Various apparatuses and methods for supplying an electrical current are disclosed herein. For example, some embodiments provide an apparatus including a current regulation switch connected in a current path between a power input and a current output. A current regulator is connected to the current regulation switch. The current regulator includes a current set terminal, and the current through the current regulation switch is proportional to the current through current set terminal. An impedance monitor is connected to the current set terminal.