Abstract: A semiconductor device includes a voltage measurement unit that measures an output voltage of a battery, a current measurement unit that measures a discharge current of the battery; and a controller that determines, in a first measurement mode, whether to employ a first discharge current as a power calculation current based on a difference between the first and a second discharge current, the second discharge current being the discharge current measured by the current measurement unit before the first discharge current is measured, in which the controller estimates an internal resistance of the battery based on the power calculation current and the output voltage measured in the first measurement mode and the discharge current and the output voltage measured in a second measurement mode, and calculates, based on the internal resistance that is estimated, a maximum power amount that can be output by the battery in the second measurement mode.

Abstract: A battery control IC includes a voltage measurement unit that measures, in a normal current mode, a voltage value of each of a plurality of unit battery cells forming a battery pack, and measures, in a short-time large-current mode, a voltage value of a unit battery cell that has exhibited a lowest voltage value in the normal current mode, and a calculation unit that calculates an available power value of the battery pack in the short-time large-current mode based on a voltage value, measured in the short-time large-current mode, of the unit battery cell that has exhibited the lowest voltage value in the normal current mode.

Abstract: A semiconductor device includes a voltage measurement unit that measures an output voltage of a battery, a current measurement unit that measures a discharge current of the battery; and a controller that determines, in a first measurement mode, whether to employ a first discharge current as a power calculation current based on a difference between the first and a second discharge current, the second discharge current being the discharge current measured by the current measurement unit before the first discharge current is measured, in which the controller estimates an internal resistance of the battery based on the power calculation current and the output voltage measured in the first measurement mode and the discharge current and the output voltage measured in a second measurement mode, and calculates, based on the internal resistance that is estimated, a maximum power amount that can be output by the battery in the second measurement mode.

Abstract: A semiconductor device includes: a voltage measurement unit that measures an output voltage of a battery; a current measurement unit that measures a discharge current of the battery; and a controller that determines, in a first measurement mode, whether to employ a first discharge current as a power calculation current based on a difference between the first and a second discharge current, the second discharge current being the discharge current measured by the current measurement unit before the first discharge current is measured, in which: the controller estimates an internal resistance of the battery based on the power calculation current and the output voltage measured in the first measurement mode and the discharge current and the output voltage measured in a second measurement mode, and calculates, based on the internal resistance that is estimated, a maximum power amount that can be output by the battery in the second measurement mode.

Abstract: A battery control IC includes a voltage measurement unit that measures, in a normal current mode, a voltage value of each of a plurality of unit battery cells forming a battery pack, and measures, in a short-time large-current mode, a voltage value of a unit battery cell that has exhibited a lowest voltage value in the normal current mode, and a calculation unit that calculates an available power value of the battery pack in the short-time large-current mode based on a voltage value, measured in the short-time large-current mode, of the unit battery cell that has exhibited the lowest voltage value in the normal current mode.

Abstract: A semiconductor device includes a voltage measurement unit that measures an output voltage of a battery and a voltage on a power supply path between the battery and an internal circuit supplied with electric power from the battery; a current measurement unit that measures a discharge current of the battery, and a processor, executing program instructions stored in a non-transitory computer readable medium, that calculates a theoretical value of the output voltage in a normal measurement mode assuming that the discharge current measured in a large current measurement mode is a maximum available current of the battery in the large current measurement mode, and calculates an amount of maximum available power of the battery in the large current measurement mode based on the calculated theoretical value of the output voltage and the voltage on the power supply path measured in the large current measurement mode.

Abstract: A battery control IC includes a voltage measurement unit that measures, in a normal current mode, a voltage value of each of a plurality of unit battery cells forming a battery pack, and measures, in a short-time large-current mode, a voltage value of a unit battery cell that has exhibited a lowest voltage value in the normal current mode, and a calculation unit that calculates an available power value of the battery pack in the short-time large-current mode based on a voltage value, measured in the short-time large-current mode, of the unit battery cell that has exhibited the lowest voltage value in the normal current mode.

Abstract: A semiconductor device includes a voltage measurement unit that measures an output voltage of a battery and a voltage on a power supply path between the battery and an internal circuit supplied with electric power from the battery, a current measurement unit that measures a discharge current of the battery, and a control unit that calculates a theoretical value of the output voltage in a normal measurement mode assuming that the discharge current measured in a large current measurement mode is a maximum available current of the battery in the large current measurement mode, and calculates an amount of maximum available power of the battery in the large current measurement mode based on the calculated theoretical value of the output voltage and the voltage on the power supply path measured in the large current measurement mode.

Abstract: A semiconductor device includes a voltage measurement unit that measures a voltage of a battery, a current measurement unit that measures charging and discharging currents of the battery, a data processing control unit, and a current detection unit. The voltage measurement unit and the current measurement unit are able to measure the voltage and the discharging current of the battery in case that the current detection unit detects that the discharging current exceeds a predetermined threshold. The data processing control unit estimates an internal resistance of the battery based on a voltage measurement value measured by the voltage measurement unit in accordance with the detection performed by the current detection unit and a current measurement value measured by the current measurement unit in accordance with the detection performed by the current detection unit, and calculates an amount of maximum power capable of being supplied from the battery.

Abstract: A semiconductor device includes: a voltage measurement unit that measures an output voltage of a battery; a current measurement unit that measures a discharge current of the battery; and a controller that determines, in a first measurement mode, whether to employ a first discharge current as a power calculation current based on a difference between the first and a second discharge current, the second discharge current being the discharge current measured by the current measurement unit before the first discharge current is measured, in which: the controller estimates an internal resistance of the battery based on the power calculation current and the output voltage measured in the first measurement mode and the discharge current and the output voltage measured in a second measurement mode, and calculates, based on the internal resistance that is estimated, a maximum power amount that can be output by the battery in the second measurement mode.

Abstract: Provided is a semiconductor device including: a voltage measurement unit that measures an output voltage of a battery and a voltage on a power supply path between the battery and an internal circuit supplied with electric power from the battery; a current measurement unit that measures a discharge current of the battery; and a control unit that calculates a theoretical value of the output voltage in a normal measurement mode assuming that the discharge current measured in a large current measurement mode is a maximum available current of the battery in the large current measurement mode, and calculates an amount of maximum available power of the battery in the large current measurement mode based on the calculated theoretical value of the output voltage and the voltage on the power supply path measured in the large current measurement mode.

Abstract: A semiconductor device includes a voltage measurement unit that measures a voltage of a battery, a current measurement unit that measures charging and discharging currents of the battery, a data processing control unit, and a current detection unit. The voltage measurement unit and the current measurement unit are able to measure the voltage and the discharging current of the battery in case that the current detection unit detects that the discharging current exceeds a predetermined threshold. The data processing control unit estimates an internal resistance of the battery based on a voltage measurement value measured by the voltage measurement unit in accordance with the detection performed by the current detection unit and a current measurement value measured by the current measurement unit in accordance with the detection performed by the current detection unit, and calculates an amount of maximum power capable of being supplied from the battery.

Abstract: A battery control IC includes a voltage measurement unit that measures, in a normal current mode, a voltage value of each of a plurality of unit battery cells forming a battery pack, and measures, in a short-time large-current mode, a voltage value of a unit battery cell that has exhibited a lowest voltage value in the normal current mode, and a calculation unit that calculates an available power value of the battery pack in the short-time large-current mode based on a voltage value, measured in the short-time large-current mode, of the unit battery cell that has exhibited the lowest voltage value in the normal current mode.

Abstract: A liquid crystal display control circuit comprising a counter, inputted with a first signal for controlling a display status of a display unit and a second signal corresponding to an image data to be displayed on the display unit, for counting clocks for the second signal in 1 cycle of the first signal and for outputting the count value, a latch circuit for latching the number of clocks for the second signal included in 1 cycle of the first signal and for outputting the number of CLKs in 1 cycle, a reference count value circuit for generating a reference count value according to the number of CLKs in 1 cycle, and a comparator for generating a driver control signal that changes a current capacity of the driver unit according to the reference count value and the count value.

Abstract: A display apparatus drives a data line on a time division basis. In this process, the data line is driven twice, namely in two modes: a precharge mode and a drive mode. Before the drive mode in which a drive voltage according to display data is supplied to a data line among a set of data lines to be driven on a time division basis, a precharge voltage is supplied at least to a data line adjacent to the data line individually.

Abstract: A liquid crystal display control circuit comprising a counter, inputted with a first signal for controlling a display status of a display unit and a second signal corresponding to an image data to be displayed on the display unit, for counting clocks for the second signal in 1 cycle of the first signal and for outputting the count value, a latch circuit for latching the number of clocks for the second signal included in 1 cycle of the first signal and for outputting the number of CLKs in 1 cycle, a reference count value circuit for generating a reference count value according to the number of CLKs in 1 cycle, and a comparator for generating a driver control signal that changes a current capacity of the driver unit according to the reference count value and the count value.