Abstract: A battery management device manages an energy storage device to which a shunt resistor is connected. The battery management device includes: a current measurement unit that measures a current flowing through the shunt resistor using a pair of signal wires connected to both ends of the shunt resistor; a connecting wire that connects the signal wire to a reference potential source via an opening/closing switch; and a determination unit that determines presence or absence of a failure in which connection between the pair of signal wires via the shunt resistor becomes defective based on a change in current measured by the current measurement unit when the opening/closing switch is opened and closed.

Abstract: Provided are a computer program, a determination device, and a determination method. A computer is caused to execute a process of estimating a state of at least one of an energy storage device and a charge system by executing a simulation using a battery model for simulating the energy storage device and a charge system model for simulating the charge system that charges the energy storage device and determining the compatibility between the energy storage device and the charge system based on the estimated state.

Abstract: A computer is caused to execute a process of; executing, for a system including an energy storage device and a powered unit driven by power supplied from the energy storage device wherein the energy storage device including a switch for switching between energized and non-energized states and having a switch self-diagnosis function, a simulation regarding switch self-diagnosis using a battery model for simulating the energy storage device and a powered-unit model for simulating the powered unit; and determining compatibility between the energy storage device and the powered unit based on an execution result of the simulation.

Abstract: A battery management device manages an energy storage device to which a shunt resistor is connected. The battery management device includes: a current measurement unit that measures a current flowing through the shunt resistor using a pair of signal wires connected to both ends of the shunt resistor; a connecting wire that connects the signal wire to a reference potential source via an opening/closing switch; and a determination unit that determines presence or absence of a failure in which connection between the pair of signal wires via the shunt resistor becomes defective based on a change in current measured by the current measurement unit when the opening/closing switch is opened and closed.

Abstract: A measurement device 50 of an electrochemical element 30 that is connected, via a first switch 40, to a terminal part 22P having a load connected thereto, wherein: the measurement device 50 is provided with a current limitation unit 75 provided to a bypass path BP of the first switch 40, a current sensor 60 for measuring the current of the electrochemical element 30, and a processing unit 100; when a voltage difference ?V between the voltage of the electrochemical element 30 and the voltage of the terminal part 22P is equal to or greater than a prescribed value, the current limitation unit 75 permits the supply of power to the load through the bypass path BP, and when the voltage difference ?V is less than the prescribed value, the current limitation unit 75 cuts off the current to the bypass path BP; and in a period of time after the first switch 40 has been turned off and until the voltage difference ?V reaches the prescribed value due to a change in voltage of the terminal part 22P because of discharging o

Abstract: A measurement device 50 of an electrochemical element 30 that is connected, via a first switch 40, to a terminal part 22P having a load connected thereto, wherein: the measurement device 50 is provided with a current limitation unit 75 provided to a bypass path BP of the first switch 40, a current sensor 60 for measuring the current of the electrochemical element 30, and a processing unit 100; when a voltage difference ?V between the voltage of the electrochemical element 30 and the voltage of the terminal part 22P is equal to or greater than a prescribed value, the current limitation unit 75 permits the supply of power to the load through the bypass path BP, and when the voltage difference ?V is less than the prescribed value, the current limitation unit 75 cuts off the current to the bypass path BP; and in a period of time after the first switch 40 has been turned off and until the voltage difference ?V reaches the prescribed value due to a change in voltage of the terminal part 22P because of discharging o

Abstract: In accordance with an embodiment, a method for discharging a power source such as, for example, a battery, includes determining a capacity of the battery and discharging the battery in response to the capacity of the battery being greater than a reference level. In accordance with another embodiment, a circuit suitable for use with a battery includes a power measurement circuit coupled to a discharge indicator circuit, a control circuit, and a load. The discharge indicator circuit is coupled to the control circuit, which is coupled to a switch configured for activating a discharge operation through the load.

Abstract: A remaining battery power calculation circuit includes: a detection unit configured to detect an output voltage of a battery; a data storage unit configured to store data in an associated manner with each of a plurality of current values for charge or discharge of the battery, the data indicating a relationship between the output voltage and a ratio of remaining power of the battery to a capacity of the battery in a case where the battery is charged or discharged with each of the plurality of current values; and a first calculation unit configured to calculate a charging/discharging current of the battery based on the data and the output voltage.

Abstract: In accordance with an embodiment, a method for discharging a power source such as, for example, a battery, includes determining a capacity of the battery and discharging the battery in response to the capacity of the battery being greater than a reference level. In accordance with another embodiment, a circuit suitable for use with a battery includes a power measurement circuit coupled to a discharge indicator circuit, a control circuit, and a load. The discharge indicator circuit is coupled to the control circuit, which is coupled to a switch configured for activating a discharge operation through the load.

Abstract: A charger includes a power supply generating a direct current power supply potential, an output transistor, a USB connector, a controller, and a resistor bridge circuit. The controller has a potential setting circuit which sets the potentials of the first and second connection nodes of the resistor bridge circuit to a middle potential between a power supply potential and a ground potential in a first mode, and sets the potentials of the first and second connection nodes to the power supply potential in a second mode.

Abstract: A remaining battery power calculation circuit includes: a detection unit configured to detect an output voltage of a battery; a data storage unit configured to store data in an associated manner with each of a plurality of current values for charge or discharge of the battery, the data indicating a relationship between the output voltage and a ratio of remaining power of the battery to a capacity of the battery in a case where the battery is charged or discharged with each of the plurality of current values; and a first calculation unit configured to calculate a charging/discharging current of the battery based on the data and the output voltage.

Abstract: A remaining battery power calculation circuit includes: a detection unit configured to detect an output voltage of a battery; a data storage unit configured to store data in an associated manner with each of a plurality of current values for charge or discharge of the battery, the data indicating a relationship between the output voltage and a ratio of remaining power of the battery to a capacity of the battery in a case where the battery is charged or discharged with each of the plurality of current values; and a first calculation unit configured to calculate a charging/discharging current of the battery based on the data and the output voltage.

Abstract: A charger includes a power supply generating a direct current power supply potential, an output transistor, a USB connector, a controller, and a resistor bridge circuit. The controller has a potential setting circuit which sets the potentials of the first and second connection nodes of the resistor bridge circuit to a middle potential between a power supply potential and a ground potential in a first mode, and sets the potentials of the first and second connection nodes to the power supply potential in a second mode.

Abstract: A remaining battery power calculation circuit includes: a detection unit configured to detect an output voltage of a battery; a data storage unit configured to store data in an associated manner with each of a plurality of current values for charge or discharge of the battery, the data indicating a relationship between the output voltage and a ratio of remaining power of the battery to a capacity of the battery in a case where the battery is charged or discharged with each of the plurality of current values; and a first calculation unit configured to calculate a charging/discharging current of the battery based on the data and the output voltage.

Abstract: A tampering monitoring apparatus (10) for monitoring whether or not application information in an information processing device (100) is tampered includes: a tampering verification program storage section (117) for storing a tampering verification program for verifying whether or not the application information is tampered: a first processing section (110) capable of verifying whether or not the application information is tampered, by using the tampering verification program: and a second processing section (200), communicably connected to the first processing section (110), capable of receiving the tampering verification program from the first processing section (110) and verifying whether or not the received tampering verification program is tampered. When the second processing section (200) verifies that the tampering verification program is not tampered, the first processing section (110) verifies whether or not the application information is tampered, by using the tampering verification program.