Abstract: A battery balancing apparatus configured to perform a battery balancing for a battery pack is provided. The battery balancing apparatus includes n energy storage elements connected in series, n resistors connected in series and a switch unit. First and second terminals of an ith resistor among the n resistors are connected to first and second terminals of an ith energy storage element respectively, where n and i are positive integers and 1?i?n. In a first period, the switch unit selects at least one ith battery unit from among the battery units, and connects positive and negative electrode terminals of the ith battery unit to the first and second terminals of the ith energy storage element respectively, so as to perform the battery balancing. A battery balancing method is also provided.

Abstract: A power supply apparatus is provided. The power supply apparatus includes a first power pin, a second power pin, a DC output regulator, a current sensing circuit, and a compensation circuit. The first and second power pins are coupled to an external load through a first wire and a second wire respectively. The DC output regulator receives an input voltage and a feedback voltage and generates an output voltage and an output current. The current sensing circuit senses the output current and generates a sensing voltage. The compensation circuit generates a compensation voltage responding to the sensing voltage. The compensation voltage is a sum of a voltage drop on the first wire and a voltage drop on the second wire. The compensation circuit compensates the output voltage according to the compensation voltage, such that a load voltage of the external load is kept at a stable voltage value.

Abstract: A battery balancing apparatus configured to perform a battery balancing for a battery pack is provided. The battery balancing apparatus includes n energy storage elements connected in series, n resistors connected in series and a switch unit. First and second terminals of an ith resistor among the n resistors are connected to first and second terminals of an ith energy storage element respectively, where n and i are positive integers and 1?i?n. In a first period, the switch unit selects at least one ith battery unit from among the battery units, and connects positive and negative electrode terminals of the ith battery unit to the first and second terminals of the ith energy storage element respectively, so as to perform the battery balancing. A battery balancing method is also provided.

Abstract: A power supply apparatus is provided. The power supply apparatus includes a first power pin, a second power pin, a DC output regulator, a current sensing circuit, and a compensation circuit. The first and second power pins are coupled to an external load through a first wire and a second wire respectively. The DC output regulator receives an input voltage and a feedback voltage and generates an output voltage and an output current. The current sensing circuit senses the output current and generates a sensing voltage. The compensation circuit generates a compensation voltage responding to the sensing voltage. The compensation voltage is a sum of a voltage drop on the first wire and a voltage drop on the second wire. The compensation circuit compensates the output voltage according to the compensation voltage, such that a load voltage of the external load is kept at a stable voltage value.

Abstract: An electronic system is provided. The electronic system is powered by a constant power adapter and has a core system, a rechargeable battery, a charger, and a control unit. The core system is arranged to control operations of the electronics device, and the charger is arranged to convert the power provided by the constant power adapter into a charge voltage. The control unit is arranged to detect whether the capacity of the rechargeable battery exceeds a first predetermined value when the requirement power of the electronics device exceeds the maximum output power of the constant power adapter, and to enable the rechargeable battery and the constant power adapter to power the core system at the same time when the capacity of the rechargeable battery exceeds the first predetermined value.

Abstract: An electronic device and an external power supply device control method applicable to the electronic device are disclosed. The electronic device is electrically connected to an external power supply device that is able to switch between an ON state and an OFF state. The electronic device includes a switch module and an internal power module. The switch module, when being triggered, generates a switch signal. The internal power module receives the switch signal and accordingly generates a trigger signal to the external power supply device, so that the external power supply device is triggered to switch from the OFF state to the ON state and accordingly supplies electric power to the electronic device.

Abstract: An electronic device and an external power supply device control method applicable to the electronic device are disclosed. The electronic device is electrically connected to an external power supply device that is able to switch between an ON state and an OFF state. The electronic device includes a switch module and an internal power module. The switch module, when being triggered, generates a switch signal. The internal power module receives the switch signal and accordingly generates a trigger signal to the external power supply device, so that the external power supply device is triggered to switch from the OFF state to the ON state and accordingly supplies electric power to the electronic device.

Abstract: The present invention relates to a charging apparatus of portable device, which charges a battery module of the portable devices. The charging apparatus includes a sensing circuit, a control unit, and a linear charging circuit. The sensing circuit detects the voltage of a power adapter when the power adapter is plug to the portable devices, and then produces a sensing signal and transmits it to the control unit. The control unit produces a control signal according to the sensing signal and the remaining capacity of the battery module. The present invention features that the linear charging circuit receives an output power of the sensing circuit and charges the battery module according the control signal.

Abstract: In an electronic system and a power supply device thereof, the power supply device supplies electric power to an electronic device in the electronic system. When the electronic device is shut down, the electronic device transmits a shutdown signal to the power supply device, so that the power supply device stops supplying electric power to the electronic device. And, when the electronic device is switched on, the electronic device transmits a start signal to the power supply device, so that the power supply device starts supplying electric power to the electronic device. Therefore, power consumption by the power supply device when the electronic device is shut down can be reduced.

Abstract: The present invention relates to a charging apparatus of portable device, which charges a battery module of the portable devices. The charging apparatus includes a sensing circuit, a control unit, and a linear charging circuit. The sensing circuit detects the voltage of a power adapter when the power adapter is plug to the portable devices, and then produces a sensing signal and transmits it to the control unit. The control unit produces a control signal according to the sensing signal and the remaining capacity of the battery module. The present invention features that the linear charging circuit receives an output power of the sensing circuit and charges the battery module according the control signal.