Abstract:
A charging system (1) for a variety of batteries (nominal voltage, capacity, chemical components), stepping, and self-adjusting to the top-of-charge voltage of the battery (12a) by interacting with the terminal voltage of this battery in each one of a series of periodic intervals (steps). CONTROL means (2) are provided for enabling signals (4) in predetermined subintervals in each periodic interval, to control the charging process. The charging voltage parameter in the running periodic interval is set by REFERENCE VOLTAGE means (10), based on the sample of the terminal voltage of the battery taken by READING means (5) in the beginning of the running periodic interval and slightly amplified by a predetermined factor (25 %). Thereafter VOLTAGE REGULATOR means (15) regulate the voltage of the charging current according to, as this set, charging voltage parameter. Every time a sample of the terminal voltage of the battery is taken, COMPARATOR means (9) compare this sample with the one taken in the previous periodic interval and, then, the charging is proceeding when this comparison has a predetermined result (or alternately a combination or combinations of results from comparisons of more parameters), otherwise the charging process terminates.
Abstract:
The invention refers to a control device (6) for controlling charging of a rechargeable battery (2), the control device (6) comprising a rechargeable dummy cell (11), a first circuit (C1) configured to charge the battery and the dummy cell (11), and a second circuit (C2) configured to measure the open circuit voltage of the dummy cell (11). The control device is configured to: determine the open circuit voltage (OCV d ) of the dummy cell (11) by using the second circuit (C2), and determine the maximum capacity increment (ΔΑh max ) of the battery, which is to be charged until full charging, based on the determined open circuit voltage (OCV d ) of the dummy cell (11). The invention also refers to a corresponding method of controlling charging of a rechargeable battery (2).
Abstract:
The invention relates to a method of operating a lead acid battery in which the battery is monitored during the discharging and charging of the battery, and information relating to the discharging and/or charging history of the battery, such as the total charge supplied to the battery over its lifetime, is recorded, and the voltage applied during the charging of the battery is adjusted in dependence upon that information.
Abstract:
A method and an apparatus for charging an electronic device with USB connection are provided. The method comprises, at the side of the first electronic device which is charged by a second electronic device, the steps of: receiving a power supply at a first voltage level from the second electronic device (201); detecting whether there is data communication on the USB connection (202), if there is no data communication on the USB connection, transmitting a message to the second electronic device to request for being charged at a second voltage level which is greater than the first voltage level (203); and receiving a power supply at the second voltage level from the second electronic device.
Abstract:
A power distribution system for distributing electrical power to battery-powered electrical devices, in particular mobile telephones, comprises at least one power connector for connection to an electrical device of a user whereby to replenish the battery of that device in response to a requirement from the user for battery charging and a locking mechanism configured selectively to connect the power connector to a source of electrical power only in response to receipt of an authorisation signal. The locking mechanism comprises a receiver configured to receive the authorisation signal from a remote server via a telecommunications network.
Abstract:
배터리를 충전하기 위한 충전전압을 발생하는 충전전압발생부(15)를 구비하는, 배터리(21) 충전시 대기전력을 차단하기 위한 충전장치(10)를 개시한다. 본 충전장치는, 충전동작에 필요한 연산 및 비교판단을 제어하기 위한 적어도 하나의 마이크로프로세서를 포함하는 제어부(12)와, 상기 충전전압 발생부(15)와 배터리(21) 사이에 배치되고, 다수의 다이오드들(D1, D2, D3)을 포함하여 구성되는, 배터리(21)의 전압과 충전전압(Vd)이 충전장치(10) 쪽으로 역류하는 것을 방지하기 위한 역류방지부(11)와, 상기 제어부(12)와 AC 전원의 사이에 접속되어, 상기 제어부의 제어에 따라 충전장치에 AC 전원을 공급/차단하기 위한 릴레이(K1)를 포함하는 구동부(13)와, 배터리(21)의 충전시 접촉불량이나 충전완료를 알려 주기 위한 경보수단과, 그리고 피충전기(20)와 연결하기 위한 케이블 컨넥터(16)를 구비한다. 상기 충전장치는, 충전이 완료되거나 피충전기에서 배터리를 분리하면, 충전장치의 전원 플러그를 콘센트에서 분리하지 않아도 자동으로 대기전력을 완전히 차단하는 것을 가능하게 한다.
Abstract:
The invention relates to a method of controlling the charging of a lead starting battery of a motor vehicle comprising a combustion engine, the charge regulating value of which corresponds to a partial charge. According to the invention, when the combustion engine is running, a heavy charging voltage is applied to the battery so as to charge it to a heavy charge value greater than the charge regulating value, the value of the heavy charging voltage depending on at least one of the two parameters among the temperature and the state of charge of the battery on initiation of the heavy charging process.
Abstract:
L'invention concerne un procédé de pilotage de la charge d'une batterie de démarrage au plomb d'un véhicule automobile comportant un moteur à combustion, dont la valeur de régulation de charge correspond à une charge partielle. Selon l'invention, quand le moteur à combustion est en marche, une tension de charge poussée est appliquée à la batterie de façon à la charger à une valeur de charge poussée supérieure à la valeur de régulation de charge, la valeur de la tension de charge poussée dépendant d'au moins l'un des deux paramètres entre la température et de l'état de charge de la batterie à l'initiation du processus de charge poussée.
Abstract:
The invention relates to a method of operating a lead acid battery which undergoes discharging phases and charging phases in a cyclical fashion. The method involves monitoring the current discharged from the battery during a discharging phase and recording information relating to that current flow, such as the charge lost from the battery. During the subsequent charging phase, a desired amount of charge to be supplied to the battery is calculated based upon the recorded information, and then supplied to the battery.
Abstract:
A resistance free constant voltage taper charger for batteries in which a voltage regulator (VR) of a conventional type is combined with a conventional instrumentation amplifier (1A) in such a way that the output voltage increases by the same amount as a reference voltage coupled to the input of the amplifier (1A) is varied. The result will be that the voltage at the final output is constant. The same basic circuit can be complemented with two switches (SW1, SW2) and with a sample and hold circuit (C1) controlled by a pulse generator so that in short pulse periods the voltage regulator (VR) is disabled and the resistance free electrochemical battery voltage is sampled, and during the longer intervals between the periods the sampled and stored value is used to regulate the output voltage so that the electrochemical voltage remain unchanged.