Abstract: A variable light distribution light source includes an array-type light-emitting device. The array-type light-emitting device includes a power supply terminal and multiple pixel circuits electrically coupled and spatially arranged in a matrix. A power supply circuit includes a power supply unit that supplies electric power to the array-type light-emitting device. An output of a DC/DC converter is coupled to the power supply terminal VDD of the array-type light-emitting device via an output terminal. A voltage setting circuit generates a controllable correction voltage. A feedback circuit generates a feedback voltage based on the correction voltage and the control target voltage that corresponds to the output voltage of the DC/DC converter, and supplies the feedback voltage to a feedback pin of a converter controller.

Abstract: A lighting circuit turns on multiple semiconductor light sources. Multiple current sources are each coupled in series with a corresponding one from among the semiconductor light sources. A switching converter supplies a driving voltage VOUT across each of multiple series connection circuits formed of the multiple semiconductor light sources and the multiple current sources. A converter controller controls a switching transistor of the switching converter based on a relation between a voltage across one from among the multiple current sources and a reference voltage having a positive correlation with the temperature Tj.

Abstract: A server device includes a processor and a memory for storing a program executed by the processor. A plurality of units includes a first unit, a second unit, and a third unit. The processor accepts a bid of the second unit regarding a transaction for electric power transfer with the first unit, and executes a contract process for causing the third unit to perform the electric power transfer with the first unit, when the second unit does not perform the electric power transfer with the first unit at a scheduled time of the electric power transfer.

Abstract: A lighting circuit turns on multiple semiconductor light sources. Multiple current sources are each coupled in series with a corresponding one from among the semiconductor light sources. A switching converter supplies a driving voltage VOUT across each of multiple series connection circuits formed of the multiple semiconductor light sources and the multiple current sources. A converter controller controls a switching transistor of the switching converter based on a relation between a voltage across one from among the multiple current sources and a reference voltage having a positive correlation with the temperature Tj.

Abstract: A market server receives a second request signal for requesting reception-supply adjustment of a first amount of power from a CEMS server and sends an invitation signal to a plurality of agent devices. The market server receives a bid signal showing bid conditions for a power buying or selling transaction of a second amount of power, smaller than the first amount of power, from at least one or more agent devices that have determined the bid conditions among the plurality of agent devices, and accepts bids by the at least one or more agent devices when acceptance conditions are met.

Abstract: A market server stores participant information of each of participants in a power trading market, the participant information includes a participant ID that specifies the participant and participant evaluation information associated with the participant ID and set based on a trading history of the participant, and when the participant evaluation information satisfies a predetermined condition, the market server permits the participant specified by the participant ID associated with the participant evaluation information to participate in the power trading market.

Abstract: A lighting circuit turns on a plurality of semiconductor light sources. Multiple current sources are each coupled to a corresponding semiconductor light source. A switching converter supplies a driving voltage VOUT across each of multiple series connection circuits each formed of the semiconductor light source and the current source. A converter controller employing a ripple control method turns on a switching transistor of the switching converter in response to a voltage across any one of the multiple current sources decreasing to a bottom limit voltage.

Abstract: A lighting circuit turns on a plurality of semiconductor light sources. Multiple current sources are each coupled to a corresponding semiconductor light source. A switching converter supplies a driving voltage VOUT across each of multiple series connection circuits each formed of the semiconductor light source and the current source. A converter controller employing a ripple control method turns on a switching transistor of the switching converter in response to a voltage across any one of the multiple current sources decreasing to a bottom limit voltage.

Abstract: In a power transmission and distribution system, each charging and discharging apparatus includes a communication unit configured to receive information on charging and discharging requirement amounts of at least one other charging and discharging apparatus. In each charging and discharging apparatus, according to an average agreement calculation of a multi-agent system, agreement values obtained by dividing, by the number of agents, a total of charging requirement amounts and a total of discharging requirement amounts of all charging and discharging apparatuses, respectively, is calculated using own charging and discharging requirement amounts and information on the charging and discharging requirement amounts of the other charging and discharging apparatus acquired by the communication unit, and a limit amount on a charging execution amount or a discharging execution amount of each charging and discharging apparatus is controlled based on the agreement values.

Abstract: A system includes a plurality of control devices that respectively control the states of a plurality of apparatuses and are connected to each other via communication lines. When each of the control devices determines a state target value of its own apparatus using the current state indicator value of the own apparatus, and the distributed controller input which is a function of the state indicator value of an apparatus adjacent to the own apparatus and the state indicator value of the own apparatus, the control gain which adjusts contribution of the distributed controller input to the state target value is determined based on a communication delay time between the control devices.

Abstract: A worm wheel is installed inside a wheel accommodation chamber of a body casing; a motor is fastened by screws from the right side perpendicular to the axis line of the worm wheel, thus forming a motor fastening part; and a worm fixed to an output shaft of the motor is engaged with the worm wheel. A board accommodation chamber is formed so as to be adjacent to the right of the wheel accommodation chamber, and a control board is inserted inside the board accommodation chamber from below. The control board is disposed so as to be inclined in a direction in which the upper end of the control board is displaced toward the wheel accommodation chamber from an erect attitude perpendicular to the axis line of the output shaft of the motor, and thus the upper end is separated from the motor fastening part in the direction of the axis line of the output shaft.

Abstract: An annular sensor magnet to be fixed to a motor shaft by a press-fit includes an annular portion having magnetic poles alternately formed in an outer peripheral portion. The annular sensor magnet also includes a fixing portion extending from an inner peripheral portion of the annular portion toward a center to support and fix the motor shaft having been press-fit, and a stress reducing portion for reducing stress caused in a contact portion of the fixing portion that contacts the motor shaft when the motor shaft is press-fit onto the fixing portion. The sensor magnet includes a bonded magnet in which a magnetic material is dispersed in a plastic material.

Abstract: A distributed control system includes a plurality of control units that controls respective units of a plurality of devices, and a communication network that includes a communication line that connects the control units. A control unit of each of the devices is configured to determine a state target value, according to consensus control of a multi-agent system, by using a current state index value of a self-device, and a difference between a latest state index value of an adjacent device received from a control unit of the adjacent device, and a latest state index value of the self-device received from the control unit of the adjacent device.

Abstract: A lighting circuit turns on a plurality of semiconductor light sources. Multiple current sources are each coupled to a corresponding semiconductor light source. A switching converter supplies a driving voltage VOUT across each of multiple series connection circuits each formed of the semiconductor light source and the current source. A converter controller employing a ripple control method turns on a switching transistor of the switching converter in response to a voltage across any one of the multiple current sources decreasing to a bottom limit voltage.

Abstract: A lighting circuit turns on a plurality of semiconductor light sources. Multiple current sources are each coupled to a corresponding semiconductor light source. A switching converter supplies a driving voltage VOUT across each of multiple series connection circuits each formed of the semiconductor light source and the current source. A converter controller employing a ripple control method turns on a switching transistor of the switching converter in response to a voltage across any one of the multiple current sources decreasing to a bottom limit voltage.

Abstract: A lighting circuit turns on multiple semiconductor light sources. Multiple current sources are each coupled in series with a corresponding one from among the semiconductor light sources. A switching converter supplies a driving voltage VOUT across each of multiple series connection circuits formed of the multiple semiconductor light sources and the multiple current sources. A converter controller controls a switching transistor of the switching converter based on a relation between a voltage across one from among the multiple current sources and a reference voltage having a positive correlation with the temperature Tj.

Abstract: Multiple current sources are coupled in series to corresponding light-emitting elements. Switching converter supplies driving voltage to the multiple light-emitting elements and current sources. Pulse modulator generates pulse signal that transits to on level when the smallest from among voltages across both ends of the multiple current sources falls to bottom limit voltage, and subsequently transits to off level. Frequency stabilization circuit controls pulse modulator such that the frequency of pulse signal approaches its target. Dummy load circuit is configured to lower driving voltage in the enable state, to be set to the enable state when switching transistor continues to be off for a predetermined time, and to be set to the disable state in response to the next turn-on of the switching transistor.

Abstract: A worm wheel is installed inside a wheel accommodation chamber of a body casing; a motor is fastened by screws from the right side perpendicular to the axis line of the worm wheel, thus forming a motor fastening part; and a worm fixed to an output shaft of the motor is engaged with the worm wheel. A board accommodation chamber is formed so as to be adjacent to the right of the wheel accommodation chamber, and a control board is inserted inside the board accommodation chamber from below. The control board is disposed so as to be inclined in a direction in which the upper end of the control board is displaced toward the wheel accommodation chamber from an erect attitude perpendicular to the axis line of the output shaft of the motor, and thus the upper end is separated from the motor fastening part in the direction of the axis line of the output shaft.

Abstract: Provided is a decelerator-equipped motor unit which can achieve cost reductions in the control board and improvement of both mechanical and electrical reliability through a particular arrangement of elements on the board, thereby achieving a smaller size by realizing an appropriate board shape without increasing the size of the unit.

Abstract: A lighting circuit controls lighting/extinguishing of a light source. A driving circuit generates a driving current which is to be supplied to the light source. A clamp circuit clamps a voltage between both ends of the light source to a clamp level in a period in which the light source is to be turned off. The clamp level is defined to be higher than zero and lower than a critical pressure when the light source is turned on/off.