摘要:
A battery pack and method are disclosed that permanently disable the battery pack on portable electronic equipment if the battery pack has been inauthentically remanufactured. An output voltage value and a discharge current value of the battery block are measured regularly and an amount of change in the output voltage value per unit time is calculated. If the amount of change in the output voltage value per unit time or the discharge current value exceeds predetermined values, operation of an electric circuit involved in charge/discharge operations of the battery pack is permanently disabled.
摘要:
A charging system capable of charging a battery cell so that the surface temperature of the battery cell does not exceed an upper temperature limit, is provided. A battery charger is configured in a manner such that a setting current is variable during charging. The battery charger starts charging of a secondary battery with a setting voltage set to a minimum charging current value. The surface temperature of the secondary battery is measured during charging. An estimated temperature value is calculated which is a surface temperature of the secondary battery, at which the secondary battery is charged up until a charging amount corresponding to the maximum surface temperature under assumption that the charging is performed with a present charging current value. The setting current is increased when the estimated temperature value is lower than the target temperature range and is reduced when the estimated temperature value is higher than the target temperature range. When the estimated temperature value belongs to the target temperature range, a present setting current is maintained.
摘要:
A battery charging system is disclosed. The battery charging system includes a battery cell, a voltage measurement circuit and an overvoltage protection circuit. The voltage measurement circuit measures a cell voltage of the battery cell. The overvoltage protection circuit is configured to stop charging the battery cell when a reading voltage measured by the voltage measurement circuit reaches an overvoltage setting value. The battery charging system also includes a battery charger for charging the battery cell, and a control unit for supplying a control voltage to the battery charger to perform feedback control of an output voltage of the battery charger. The battery charger includes a voltage feedback input for receiving a feedback voltage and a setting value input for receiving a setting voltage. The control voltage is generated based on the reading voltage and the setting voltage.
摘要:
In dealing with degradation in performance of a system unit due to excessive controlling by performing a power consumption control function after power consumption of the system unit actually exceeds a maximum power of a power supply apparatus, the present invention solves the above technological problems, and controls the power consumption of a system unit in a state while making full use of performance of the power supply apparatus.
摘要:
In general, the present invention provides a computer apparatus, power supply control method and program for reducing the standby power requirements in a computer supporting a wake-up function. The present invention reduces standby power requirements on power off by three types of control: a wake-up function being set by a user, existence of a device actually capable of realizing the wake-up function, and supplying the power from the auxiliary source only to the device capable of realizing the wake-up function.
摘要:
A wireless network communication card usable with a host apparatus is disclosed. The wireless network communication card includes an access point detection circuit that detects a wireless access point through a wireless antenna. A power inlet to which power is supplied in response to an access point detection request from a user when the power of the host apparatus is suspended, the power inlet being connected to the access point detection circuit is included, as is an indicator coupled to said access point detection circuit that indicates a presence of an available wireless access point in response to a detection by said access point detection circuit.
摘要:
In a removable power supply unit for a computer, a power source switching FET provided in a protective circuit of a main battery and a second battery is enabled in response to a signal from the computer to switch power paths from each of the main battery and the second battery to a DC-DC converter of the computer, thereby reducing the number of such power source switching FETs provided in an internal circuit of the computer.
摘要:
A system and method include detecting whether a fast charger module is coupled to a system having a processor and a memory device. If the fast charger module is coupled to the system, a fast charging current is provided from the fast charger module at multiple selectable voltage levels via an internal charger. If the fast charger module is not detected as coupled to the system, a charging current is provided from an AC adapter via the internal charger.
摘要:
A system and method include detecting whether a fast charger module is coupled to a system having a processor and a memory device. If the fast charger module is coupled to the system, a fast charging current is provided from the fast charger module at multiple selectable voltage levels via an internal charger. If the fast charger module is not detected as coupled to the system, a charging current is provided from an AC adapter via the internal charger.
摘要:
A charge system is disclosed. A charge system includes a switching device and a controller. The switching device performs switching of a DC input voltage at a predetermined switching frequency to generate an output voltage, and the output voltage being utilized for charging said battery. The controller allows the switching device to operate at a first switching frequency immediately after starting of charge and at a second switching frequency when a frequency changing condition holds. The second switching frequency is higher than that of first switching frequency.