Abstract: A protection monitoring circuit includes a protection circuit which detects overcharge, overdischarge, and overcurrent of a secondary battery, and a secondary battery monitoring circuit which monitors a state of the secondary battery and detects a residual quantity of the secondary battery. The protection circuit includes a first communication terminal that is connected to the secondary battery monitoring circuit, a second communication terminal that is connected to a mobile device, and a level shift circuit that is connected to the first and second communication terminals. The level shift circuit performs a level shift of a signal input of the first communication terminal so as to become a second level and outputs the signal to the second communication terminal, and also performs the level shift of a signal input of the second communication terminal so as to become a first level and outputs the signal to the first communication terminal.

Abstract: A protection monitoring circuit includes a protection circuit which detects overcharge, overdischarge, and overcurrent of a secondary battery, and a secondary battery monitoring circuit which monitors a state of the secondary battery and detects a residual quantity of the secondary battery. The protection circuit includes a first communication terminal that is connected to the secondary battery monitoring circuit, a second communication terminal that is connected to a mobile device, and a level shift circuit that is connected to the first and second communication terminals. The level shift circuit performs a level shift of a signal input of the first communication terminal so as to become a second level and outputs the signal to the second communication terminal, and also performs the level shift of a signal input of the second communication terminal so as to become a first level and outputs the signal to the first communication terminal.

Abstract: A protection monitoring circuit 101 includes a secondary battery monitoring circuit 120 which detects a state of a chargeable and dischargeable secondary battery 110, and a protection circuit 130 which performs an ON/OFF control of a charge control transistor or a discharge control transistor disposed between the secondary battery 110 and a load or a charger device, and protects the secondary battery 110. The secondary battery monitoring circuit outputs a control signal that compulsively turns on/off the charge control transistor or the discharge control transistor, to the protection circuit. The protection circuit 130 performs the ON/OFF control of the charge control transistor or the discharge control transistor upon receipt of the control signal.

Abstract: A battery-state monitoring apparatus includes: a secondary battery 200 supplying an electric power to portable equipment 300; and an operation processing part 50 that can detect a battery state of the secondary battery 200 in a detection mode to detect the battery state of the secondary battery 200, the operation processing part using the secondary battery 200 as a power source, wherein the battery-state monitoring apparatus includes a start-up current detecting part 31 detecting a start-up of the portable equipment 300, and wherein the operation processing part 50 waits for a detection of the battery state in a standby mode in which power consumption is smaller than the detection mode until the start-up is detected by the start-up current detecting part 31, and, on the other hand, the operation processing part 50 detects, by intermittently performing a temporary return from the standby mode to the detection mode, the battery state of the secondary battery in a return period during which the return is made.

Abstract: A protection monitoring circuit 101 includes a protection circuit 130 which detects at least one of overcharge, overdischarge, and overcurrent of a chargeable and dischargeable secondary battery 110 and protects the secondary battery 110 by performing an ON/OFF control of transistors M11 and M12, and a secondary battery monitoring circuit 120 which detects a state of the secondary battery 110. The protection circuit 130 supplies a power supply voltage to the secondary battery monitoring circuit 120. If overdischarge of the secondary battery is detected, the protection circuit 130 inhibits the supply of the power supply voltage to the secondary battery monitoring circuit 120 after a predetermined time has elapsed or after a control signal for inhibiting the supply of power supply voltage is received from the secondary battery monitoring circuit 120.

Abstract: An internal short-circuit determination circuit includes a current detecting unit, a voltage detecting unit, a short detecting unit, and first and second acquiring units. The first acquiring unit acquires first and second capacity values based on first and second voltage values. The second acquiring unit acquires a third capacity value based on a current flowing in a battery unit during a predetermined period. The short detecting unit computes a fourth capacity value by subtracting at least the second and third capacity values from the first capacity value. The short detecting unit determines whether an internal short-circuit has occurred in the battery unit based on the fourth capacity value.

Abstract: A battery condition detector configured to detect a micro short circuit of a rechargeable battery is disclosed. The battery condition detector includes a processing part configured to calculate the remaining capacity and the full-charge capacity of a rechargeable battery 200 and to determine the micro short circuit of the rechargeable battery 200 by detecting an overcharge of the rechargeable battery 200 based on a charged capacity charged during the charging of the rechargeable battery 200, the remaining capacity calculated at a calculation time immediately before the start of the charging, and the full-charge capacity calculated before the start of the charging; and a communications part 70 configured to output a signal according to the determination result of the processing part 50.

Abstract: A battery status detecting method for detecting a battery status of a secondary battery is disclosed. The method includes: an open circuit voltage correcting step of obtaining a temperature-corrected value of the open circuit voltage of the secondary battery according to the temperature of the secondary battery, based on first open circuit voltage characteristics indicating the relationship between the open circuit voltage and the temperature of the secondary battery; and a charge rate correcting step of obtaining a temperature-corrected value of the charge rate of the secondary battery according to the temperature-corrected value of the open circuit voltage obtained in the open circuit voltage correcting step, based on second open circuit voltage characteristics indicating the relationship between the open circuit voltage and the charge rate of the secondary battery.

Abstract: There is provided a battery condition detecting apparatus including a voltage detecting unit configured to detect an open voltage of a secondary battery, and a charging rate calculating unit configured to calculate a charging rate by applying a charged open voltage obtained by charging the secondary battery and detected by the voltage detecting unit to a first battery property indicative of a relationship between the charged open voltage and the first battery property, and for calculating the charging rate by applying a discharged open voltage obtained by discharging the secondary battery and detected by the voltage detecting unit to a second battery property indicative of a relationship between the discharged open voltage and the second battery property.

Abstract: There is provided a battery condition detecting apparatus including a unit for detecting a secondary battery temperature, a unit for calculating a capacity holding rate of the secondary battery, a unit for detecting a secondary battery voltage, a unit for calculating a waiting time between a time point when a current becomes a predetermined current value or smaller and a time point when a voltage variation per a unit time based on a battery property indicative of a relationship among a temperature of the secondary battery, a capacity holding rate, and the waiting time in response to the temperature detected by the unit and a capacity holding rate calculated by the unit, and a unit for estimating a condition of a residual quantity of the secondary battery based on the voltage detected by the unit after the waiting time calculated by the unit elapses.

Abstract: A battery status detecting method for detecting a battery status of a secondary battery that supplies power to an electrical load is disclosed. This method includes measuring a discharge current value of the secondary battery, and estimating the dischargeable capacity or the dischargeable time of the secondary battery with the measured discharge current value based on discharge characteristics of the secondary battery indicating the discharge status of the secondary battery when the voltage of the secondary battery drops to a predetermined voltage specified by the electrical load.

Abstract: A microprocessor to be connected with an external device is disclosed. The microprocessor includes a non-rewritable memory including a first interrupt vector table storing addresses of plural programs that allow plural types of interrupts, and an area storing a processing program in an address indicated by each of vectors in the first interrupt vector table; a rewritable non-volatile memory including a second interrupt vector table that includes contents identical to contents of the first interrupt vector table; an address changing section that conducts address change from an address for accessing the first interrupt vector table to another address for accessing the second interrupt vector table; a writing section that writes an address of an arbitrary vector of the second interrupt vector table and a processing program stored in the address indicated by the arbitrary vector in the rewritable non-volatile memory upon instruction supplied from the external device.

Abstract: A battery status detecting device, the battery status detecting device being configured to detect a status of a rechargeable battery which powers an electronic device, the battery status detecting device includes a capacity degradation rate calculating part configured to calculate a capacity degradation rate of the rechargeable battery; an internal resistance value calculating part configured to calculate an internal resistance value of the rechargeable battery; a determining part configured to determine necessity of exchange of the rechargeable battery based on the capacity degradation rate calculated by the capacity degradation rate calculating part and the internal resistance value calculated by the internal resistance value calculating part; and an outputting part configured to output a signal corresponding to a determination result of the determining part, wherein the determining part determines that the exchange of the rechargeable battery is necessary in a case where one of or both of the capacity degr

Abstract: Disclosed is a mobile phone terminal with a battery pack containing a retraceable battery as power supply, and transmitting and receiving radio-signals to and from a mobile phone system base transceiver station. The mobile phone terminal includes a data communication terminal communicating data with the battery pack, an intermittent receiving processor periodically carrying out intermittent receiving processing via the base transceiver station when the mobile phone terminal is in a standby operation, and a battery status determining unit transmitting, while the intermittent receiving processor is carrying out intermittent receiving processing, an activating signal to the battery pack via the data communication terminal and reading battery status data from the activated battery pack.

Abstract: A protection monitoring circuit 101 includes a protection circuit 130 which detects at least one of overcharge, overdischarge, and overcurrent of a chargeable and dischargeable secondary battery 110 and protects the secondary battery 110 by performing an ON/OFF control of transistors M11 and M12, and a secondary battery monitoring circuit 120 which detects a state of the secondary battery 110. The protection circuit 130 supplies a power supply voltage to the secondary battery monitoring circuit 120. If overdischarge of the secondary battery is detected, the protection circuit 130 inhibits the supply of the power supply voltage to the secondary battery monitoring circuit 120 after a predetermined time has elapsed or after a control signal for inhibiting the supply of power supply voltage is received from the secondary battery monitoring circuit 120.

Abstract: A protection monitoring circuit 101 includes a secondary battery monitoring circuit 120 which detects a state of a chargeable and dischargeable secondary battery 110, and a protection circuit 130 which performs an ON/OFF control of a charge control transistor or a discharge control transistor disposed between the secondary battery 110 and a load or a charger device, and protects the secondary battery 110. The secondary battery monitoring circuit outputs a control signal that compulsively turns on/off the charge control transistor or the discharge control transistor, to the protection circuit. The protection circuit 130 performs the ON/OFF control of the charge control transistor or the discharge control transistor upon receipt of the control signal.

Abstract: Disclosed is a mobile terminal incorporating a battery pack utilized as power supply. The mobile terminal includes a positive terminal connected to a battery pack positive electrode, a negative terminal connected to a battery pack negative electrode, a data communication terminal communicating with a circuit in the battery pack, a charge control unit controlling charging of the battery pack via the positive terminal, and a reference voltage output unit outputting reference voltage. The terminal further includes a dividing resistor and a thermistor connected in series between the reference voltage output unit and the negative terminal, a temperature detector detecting temperature, and stopping charging of the battery pack based on the detected temperature, and a switching device controlling the voltage at the predetermined portion.

Abstract: A battery condition detector configured to detect a micro short circuit of a rechargeable battery is disclosed. The battery condition detector includes a processing part configured to calculate the remaining capacity and the full-charge capacity of a rechargeable battery 200 and to determine the micro short circuit of the rechargeable battery 200 by detecting an overcharge of the rechargeable battery 200 based on a charged capacity charged during the charging of the rechargeable battery 200, the remaining capacity calculated at a calculation time immediately before the start of the charging, and the full-charge capacity calculated before the start of the charging; and a communications part 70 configured to output a signal according to the determination result of the processing part 50.

Abstract: A battery-state monitoring apparatus includes: a secondary battery 200 supplying an electric power to portable equipment 300; and an operation processing part 50 that can detect a battery state of the secondary battery 200 in a detection mode to detect the battery state of the secondary battery 200, the operation processing part using the secondary battery 200 as a power source, wherein the battery-state monitoring apparatus includes a start-up current detecting part 31 detecting a start-up of the portable equipment 300, and wherein the operation processing part 50 waits for a detection of the battery state in a standby mode in which power consumption is smaller than the detection mode until the start-up is detected by the start-up current detecting part 31, and, on the other hand, the operation processing part 50 detects, by intermittently performing a temporary return from the standby mode to the detection mode, the battery state of the secondary battery in a return period during which the return is made.