Abstract: A sentence generation device has: an estimation unit for receiving input of a first sentence and a focus point related to generation of a second sentence to be generated based on the first sentence, and estimating importance of each word constituting the first sentence using a pre-trained model; and a generation unit for generating the second sentence based on the importance, and thus makes it possible to evaluate importance of a constituent element of an input sentence in correspondence with a designated focus point.

Abstract: A control method of an analysis device includes analyzing a binary code of each of a plurality of smart contracts stored in a first distributed ledger; obtaining, by using a result of the analyzing, items of commonization information expressing, in a common format, items of information provided by the plurality of smart contracts; and generating transaction data that includes the items of commonization information obtained and performing control of storing the transaction data generated into a second distributed ledger.

Abstract: A wireless power feeding unit includes a receiving antenna; a control circuit having a wireless communication function in accordance with a communication standard; an impedance matching circuit, connected between the receiving antenna and the control circuit, for impedance matching between the receiving antenna and the control circuit; a conversion circuit converting alternate-current power into a direct-current voltage; a resonant circuit connected between the receiving antenna and the conversion circuit, receiving, in a resonant condition, electromagnetic energy via the receiving antenna, and outputting alternate-current power; and a switch circuit, based on a control signal from the control circuit, connecting the receiving antenna with the impedance matching circuit or the resonant circuit selectively.

Abstract: A charging circuit includes a power path control unit which switches a first switch connected between a system connection terminal and a battery connection terminal on while not charging, and switches the first switch on and a second switch connected between an external power supply input terminal and the system connection terminal on while charging so as to supply power to a system and charge a battery. A voltage difference between the external power supply input terminal and the battery connection terminal is detected, a current flowing between the external power supply input terminal and the system connection terminal is detected, and it is determined that an external power supply is disconnected based on the detection results of the voltage differences and the current.

Abstract: A charge pump circuit which steps down an input voltage inputted from an input terminal and outputs it as a step-down output voltage from a step-down output terminal, and steps up the input voltage and outputs it as a step-up output voltage from a step-up output terminal, includes: a voltage conversion circuit having a flying capacitor, a step-down output capacitor, a step-up output capacitor, and a plurality of switches, wherein the flying capacitor, the step-down output capacitor, the step-up output capacitor, and the switches are connected, and the voltage conversion circuit is capable of switching connection states by switching each on/off state of the switches; an output voltage detection circuit unit which makes a comparison of a voltage between the step-down output voltage and a first predetermined voltage, and makes a comparison of a voltage between the step-up output voltage and a second predetermined voltage, and produces and outputs each signal indicating each result of the comparisons; and a contr

Abstract: A DC-DC converter control circuit, to control a DC-DC converter having an inductor and two switching elements, including a first feedback circuit to generate a first feedback voltage indicating a DC component of an inductor current of the inductor based on an output current of the DC-DC converter; a second feedback circuit to generate a second feedback voltage indicating an AC component of the inductor current; a synthesis circuit to add the first and second feedback voltages to generate a third feedback voltage; a comparator to compare the third feedback voltage with a reference voltage to output a control signal; and a driving circuit to control the switching elements. The second feedback voltage is generated based on a difference between input and output voltages of the DC-DC converter when the control signal from the comparator is low and based on the output voltage when the control signal is high.

Abstract: A DC-DC converter control circuit, to control a DC-DC converter having an inductor and two switches, including a first feedback circuit; a second feedback circuit; a synthesis circuit to add a first feedback voltage indicating a DC component of an inductor current based on an output current of the DC-DC converter and a second feedback voltage indicating an AC component thereof to generate a third feedback voltage; a comparator to compare the third feedback voltage with a reference voltage to output a comparison result; and an on-time adjusting circuit to adjust on/off time of the switches based on the comparison result for outputting a control signal depending on the adjusting result. The second feedback voltage is generated based on a difference between input and output voltages of the DC-DC converter when the control signal is low and based on the output voltage when the control signal is high.

Abstract: A DC-DC converter control circuit, to control a DC-DC converter having an inductor and two switching elements, including a first feedback circuit to generate a first feedback voltage indicating a DC component of an inductor current of the inductor based on an output voltage of the DC-DC converter; a second feedback circuit to generate a second feedback voltage indicating an AC component of the inductor current; a synthesis circuit to add the first and second feedback voltages to generate a third feedback voltage; a comparator to compare the third feedback voltage with a reference voltage to output a control signal; and a driving circuit to control the switching elements. The second feedback voltage is generated based on a difference between input and output voltages of the DC-DC converter when the control signal from the comparator is low and based on the output voltage when the control signal is high.

Abstract: A DC-DC converter control circuit, to control a DC-DC converter having an inductor and two switches, including a first feedback circuit; a second feedback circuit; a synthesis circuit to add a first feedback voltage indicating a DC component of an inductor current based on an output voltage of the DC-DC converter and a second feedback voltage indicating an AC component thereof to generate a third feedback voltage; a comparator to compare the third feedback voltage with a reference voltage to output a comparison result; and an on-time adjusting circuit to adjust on/off time of the switches based on the comparison result for outputting a control signal depending on the adjusting result. The second feedback voltage is generated based on a difference between input and output voltages of the DC-DC converter when the control signal is low and based on the output voltage when the control signal is high.

Abstract: A DC-DC converter control circuit, to control a DC-DC converter having an inductor and two switching elements, including a first feedback circuit to generate a first feedback voltage indicating a DC component of an inductor current of the inductor based on an output voltage of the DC-DC converter; a second feedback circuit to generate a second feedback voltage indicating an AC component of the inductor current; a synthesis circuit to add the first and second feedback voltages to generate a third feedback voltage; a comparator to compare the third feedback voltage with a reference voltage to output a control signal; and a driving circuit to control the switching elements. The second feedback voltage is generated based on a difference between input and output voltages of the DC-DC converter when the control signal from the comparator is low and based on the output voltage when the control signal is high.

Abstract: A DC-DC converter control circuit, to control a DC-DC converter having an inductor and two switches, including a first feedback circuit; a second feedback circuit; a synthesis circuit to add a first feedback voltage indicating a DC component of an inductor current based on an output current of the DC-DC converter and a second feedback voltage indicating an AC component thereof to generate a third feedback voltage; a comparator to compare the third feedback voltage with a reference voltage to output a comparison result; and an on-time adjusting circuit to adjust on/off time of the switches based on the comparison result for outputting a control signal depending on the adjusting result. The second feedback voltage is generated based on a difference between input and output voltages of the DC-DC converter when the control signal is low and based on the output voltage when the control signal is high.

Abstract: A charging circuit includes a power path control unit which switches a first switch connected between a system connection terminal and a battery connection terminal on while not charging, and switches the first switch on and a second switch connected between an external power supply input terminal and the system connection terminal on while charging so as to supply power to a system and charge a battery. A voltage difference between the external power supply input terminal and the battery connection terminal is detected, a current flowing between the external power supply input terminal and the system connection terminal is detected, and it is determined that an external power supply is disconnected based on the detection results of the voltage differences and the current.

Abstract: A DC-DC converter control circuit, to control a DC-DC converter having an inductor and two switching elements, including a first feedback circuit to generate a first feedback voltage indicating a DC component of an inductor current of the inductor based on an output current of the DC-DC converter; a second feedback circuit to generate a second feedback voltage indicating an AC component of the inductor current; a synthesis circuit to add the first and second feedback voltages to generate a third feedback voltage; a comparator to compare the third feedback voltage with a reference voltage to output a control signal; and a driving circuit to control the switching elements. The second feedback voltage is generated based on a difference between input and output voltages of the DC-DC converter when the control signal from the comparator is low and based on the output voltage when the control signal is high.

Abstract: A DC-DC converter control circuit, to control a DC-DC converter having an inductor and two switches, including a first feedback circuit; a second feedback circuit; a synthesis circuit to add a first feedback voltage indicating a DC component of an inductor current based on an output voltage of the DC-DC converter and a second feedback voltage indicating an AC component thereof to generate a third feedback voltage; a comparator to compare the third feedback voltage with a reference voltage to output a comparison result; and an on-time adjusting circuit to adjust on/off time of the switches based on the comparison result for outputting a control signal depending on the adjusting result. The second feedback voltage is generated based on a difference between input and output voltages of the DC-DC converter when the control signal is low and based on the output voltage when the control signal is high.

Abstract: A current sensing circuit configured to sense current flowing through a switching transistor of a non-insulated switching regulator, the current sensing circuit includes a voltage divider circuit portion; a first transistor; a first impedance element; a second transistor; a third transistor; and a first voltage comparing circuit portion, wherein control terminals of the first transistor, the second transistor, and the third transistor are connected to each other and a connecting portion of the control terminals is connected to a connecting portion between the third transistor and the first constant current source.

Abstract: A constant current output control type switching regulator that reduces the number of parts, resolves the loss of the current running in the resistor, and eliminates the need to change the time constant of the integrator due to changing the inductor value. The switching regulator creates the adjustment reference voltage by multiplying the proportion of Vout/Vin by the reference voltage, and when the clock signal is high, the current sense voltage is sampled when the current of the initial current value runs in the switching transistor, and when the clock signal is low, the potential difference between the adjustment reference voltage and the sampled current sense voltage is added to the adjustment reference voltage and creates the second reference voltage; and with the signal CPOUT controls the operation of the transistors upon execution of PWM control.

Abstract: A disclosed constant current supply type switching regulator includes a switching element configured to activate a switch operation depending on an input control signal, an inductor configured to be charged with the input voltage in response to the switching element activating the switch operation, a rectification element configured to discharge the inductor in response to the switching element shifting to a cutoff state, a current detection circuit unit configured to generate a current proportional to a current flowing into the switching element and generate and supply a current sense voltage depending on the proportional current and a control circuit unit configured to average the current sense voltage supplied from the current detection circuit unit and perform PWM (Pulse Width Modulation) control on the switching element for supplying a constant current in order to force the averaged voltage to be equal to a first reference voltage.

Abstract: When a control circuit detects from a signal CPO4 that a battery voltage is less than a sixth reference voltage, a constant current operation in VFM control is performed with respect to a switching transistor and a synchronous rectification transistor in accordance with signals RVDET and CPO3. Furthermore, when the control circuit detects from the signal CPO4 that the battery voltage becomes equal to or greater than the sixth reference voltage, the constant current operation in PWM control is performed in accordance with a signal CPO2. When an output signal CVDET from a constant current/constant voltage switching detection circuit becomes high level, operation control with respect to the switching transistor and the synchronous rectification transistor is switched from the PWM control of constant current operations to the PWM control of constant voltage operations in accordance with a signal CPO1.

Abstract: A switching regulator is disclosed that includes a switching element; an inductor; a rectifier element; an error amplifier circuit portion; a PWM pulse generating circuit portion; a current sensing circuit portion; an output voltage decrease detecting circuit portion; a current pulse generating circuit portion; a phase detecting circuit portion; a VFM pulse generating circuit portion; and a switching control circuit portion configured to generate a control signal based on a PWM signal or a VFM signal and to switch a control status of the switching element from a PWM control to a VFM control in accordance with a third signal output from the phase detecting circuit portion, and to switch the control status from the VFM control to the PWM control in accordance with a second signal output from the output voltage decrease detecting circuit portion.

Abstract: A reverse current prevention circuit, connected to an input terminal, an output terminal, and a driver transistor, including a current detection circuit to detect a current flowing through the driver transistor, and convert the detected current into a detection voltage; a proportional voltage generator to generate a proportional voltage proportional to a difference voltage between an input voltage at the input terminal and an output voltage at the output terminal; an inversely-proportional voltage generator to generate an inversely-proportional voltage inversely proportional to the difference voltage between the input voltage and the output voltage; and a comparison circuit to compares the generated voltages. When the detection voltage, the proportional voltage, and the inversely-proportional voltage are equal, the comparison circuit determines that the indication of the reverse current is detected and prevents the reverse current flowing from the output terminal to the input terminal.