Abstract: An insulated power supply circuit includes a power input circuit including a switching control circuit and a switching element connected to a corresponding winding of a transformer, and power output circuits of two systems each including a regulator connected to a corresponding winding. By the control circuit controlling ON/OFF of the switching element in accordance with an output condition change command signal, which is generated based on a load condition at an output destination of each regulator, a voltage corresponding to an estimated value of a preset excitation level is generated, to thereby change the excitation level of the winding. Each regulator receives an output voltage generated in a corresponding winding in response to the change in excitation level.

Abstract: Disclosed is a resonance-type power reception device including a DC-DC converter (7) having an input terminal connected to a line (10), a switching circuit (5) for connecting or disconnecting a line (9) to which power is inputted to or from the line (10), and a switch control unit (6) for causing the switching circuit (5) to connect the line (9) to the line (10) after a voltage (V1) exceeds a threshold voltage (Vin(th)).

Abstract: There are included a carrier wave generating unit (4) that generates a carrier wave signal; a modulating unit (6) that generates a modulated wave signal obtained by amplitude-modulating the carrier wave signal generated by the carrier wave generating unit (4) using an audio signal; an absolute value converting unit (7) that converts the audio signal into an absolute value; an exponentially weighted moving average unit (8) that performs an exponentially weighted moving average process on the audio signal converted by the absolute value converting unit (7), using an audio signal obtained one sampling period ago, to estimate a sound pressure level of the audio signal; and a multiplying unit (10) that multiplies the carrier wave signal generated by the carrier wave generating unit (4) by the sound pressure level estimated by the exponentially weighted moving average unit (8).

Abstract: A conductor (31) wound into a multiple-layered helical shape, and an insulating member (32) provided between layers of the conductor are provided.

Abstract: An inverter circuit (7) including a resonance circuit including an inductor and a capacitor and outputting power; and a transmitting antenna (2) transferring the power output by the inverter circuit are provided. The inverter circuit varies at least one of inductance of the inductor and capacitance of the capacitor in accordance with input impedance of the transmitting antenna.

Abstract: A receiving antenna (3) receiving power transferred from a transmitting antenna (2) is provided. Further, a receiving circuit (4) controlling an input impedance in accordance with mutual inductance between the transmitting antenna and the receiving antenna is provided.

Abstract: There are included: a switching parameter detecting unit (21) that detects a switching voltage of a switching element (Q1); and an abnormality detecting unit (a first comparing unit (264a) and an abnormality determining unit (265)) that detects an abnormality caused by foreign matter, on the basis of a result of the detection by the switching parameter detecting unit (21).

Abstract: A movable portion transmission system includes a transmitter and receiver having a transmission antenna to perform wireless transmission of electric power supplied thereto and a reception antenna to receive the electric power from the transmission antenna, a transmission power supply circuit to establish a resonance condition of the transmission antenna, and a reception power supply circuit to establish a resonance condition of the reception antenna. The transmission antenna includes a transmission side coil in a spiral shape which is arranged while being centered at the axial center of a rotary member, and the reception antenna includes a reception side coil in a spiral shape which is arranged with a gap therefrom to the transmission side coil while being centered at the axial center of the rotary member.

Abstract: A transmission/reception unit including a transmitting antenna and a receiving antenna for carrying out a wireless power transmission in cooperation with the transmitting antenna. Each of the transmitting antenna and the receiving antenna includes a coil which has a shape in which a portion through which a current flows in a direction extends along another portion through which a current flows in an opposite direction.

Abstract: Disclosed is a resonance type power transmission device in which a plurality of systems having respective transmitters and receivers 3 are arranged opposite to each other and each of the systems transmits electric power having a single frequency, each of the transmitters and receivers having a transmission antenna 5 and a reception antenna 6 which are disposed so as to be fitted to each other, and in which a magnetic sheet 7 is disposed in a portion between the systems, opposite to the transmitters and receivers 3 at a distance, from each of the transmitters and receivers 3, of 1/10 or more of the minimum of the outer diameters of the transmission antenna 5 and the reception antenna 6.

Abstract: A carrier wave generating unit for generating a carrier wave signal; a modulating unit for generating a modulated wave signal by performing amplitude modulation on the carrier wave signal generated by the carrier wave generating unit with an audio signal; an adding unit for adding the carrier wave signal generated by the carrier wave generating unit and the modulated wave signal generated by the modulating unit to generate a signal; an ultrasonic emitter for emitting the signal generated by the adding unit, and an ultrasonic emitter arranged on the central axis of the ultrasonic emitter and ahead of the emitting surface of the ultrasonic emitter, for emitting the carrier wave signal generated by the carrier wave generating unit in the same direction as the emitting direction of the ultrasonic emitter are included, wherein the phase of the carrier wave signal emitted by the ultrasonic emitter is opposite to that of the carrier wave signal included in the signal emitted by the ultrasonic emitter.

Abstract: A resonant coupling power transmission system includes a resonance type power transmission device 1 having a resonance type power supply 11 to supply power, and a resonance type transmission antenna 13 to transmit the power supplied by the resonance type power supply 11, and a resonance type power reception device 2 having a resonance type reception antenna 21 to receive the power transmitted by the resonance type transmission antenna 13, and a reception circuit 23 to supply the power received by the resonance type reception antenna 21 to a load, and the characteristic impedance of each of the functional units is set in such a way that there is provided a correlation among the resonance characteristic value of the resonance type power supply 11, that of the resonance type transmission antenna 13, and that of the resonance type power reception device 2.

Abstract: An electric training apparatus is configured to apply, by a load motor, a load on a rotating body configured to apply a load on an exercising person, detect an exercise physiological response value of the exercising person and a number of revolutions of the rotating body, perform control for gradually increasing the load of the load motor toward a set load upper limit value so that a detection result of the exercise physiological response value of the exercising person approaches a target exercise physiological response value set in advance, and change, before an exercise or during the exercise by the exercising person, the load upper limit value in response to a control command input based on a state of the exercising person, a state of the control, and a perceived exertion scale for the exercising person.

Abstract: A configuration includes: resonance-type power source circuits provided for at least two electric paths, each including a power element that performs switching at a high frequency of 2 MHz or more, and a resonant circuit element that causes the power element to perform resonant switching; a phase-control-type matching circuits provided for the respective electric paths, each having a function of controlling a phase difference between output currents of the resonance-type power source circuits and a function of providing matching of resonance conditions between the resonance-type power source circuit and a load; and a combining unit that combines output currents processed by the phase-control-type matching circuits for the respective electric paths.

Abstract: Disclosed is a resonance type power transmission device in which a plurality of systems having respective transmitters and receivers 3 are arranged opposite to each other and each of the systems transmits electric power having a single frequency, each of the transmitters and receivers having a transmission antenna 5 and a reception antenna 6 which are disposed so as to be fitted to each other, and in which a magnetic sheet 7 is disposed in a portion between the systems, opposite to the transmitters and receivers 3 at a distance, from each of the transmitters and receivers 3, of 1/10 or more of the minimum of the outer diameters of the transmission antenna 5 and the reception antenna 6.

Abstract: A kinesitherapy apparatus includes a measuring instrument, a pedaled rotational mechanism, a rotating electrical machine configured to apply an assist load, which is a regenerative load or a power running load, to the pedaled rotational mechanism, and a motion control device. The motion control device performs power running operation of the rotating electrical machine so that a minus assist load is generated in a warm-up period. In a ramp loading period following the warm-up period, the motion control device raises the assist load from the minus assist load, and calculates an anaerobic threshold based on time-series data of oxygen uptake and carbon dioxide emission that are obtained via the measuring instrument.

Abstract: Disclosed is a resonant type transmission power supply device including a transmission power state detecting circuit 11 to detect a transmission power state of a transmission antenna 2, a foreign object detecting circuit 124 to detect the presence or absence of a foreign object in an electromagnetic field generated from the transmission antenna 2 on the basis of a detection result acquired by the transmission power state detecting circuit 11, and a power control circuit 125 to reduce or stop the supply of electric power to the transmission antenna 2 when foreign object is detected by the foreign object detecting circuit 124.

Abstract: A transmission/reception unit including a transmitting antenna and a receiving antenna for carrying out a wireless power transmission in cooperation with the transmitting antenna. Each of the transmitting antenna and the receiving antenna includes a coil which has a shape in which a portion through which a current flows in a direction extends along another portion through which a current flows in an opposite direction.

Abstract: A transmitting device includes a transmission power supply to output electric power, whose frequency matches a resonance frequency of each of the transmitting antennas, based on input power, plural switches respectively provided for the transmitting antennas, the switches being switchable to connect or disconnect supply lines for supplying the electric power outputted by the transmission power supply to the transmitting antennas, a parameter detector to detect parameters regarding the transmission power supply, the parameter being changed as a receiving antenna gets close to the transmitting antennas, by using a protective function of the transmission power supply, and a switch controller to estimate the position of the receiving antenna from the result of the detection, and to perform switching control on the switches in accordance with the position of the receiving antenna.

Abstract: Disclosed is a resonant type power transmission antenna device provided with a plurality of transmission antennas 12 and a plurality of reception antennas 13, the resonant type power transmission antenna device including a transmission shield antenna 22 arranged between the plurality of transmission antennas 12, a reception shield antenna 23 arranged between the plurality of reception antennas 13, transmission and reception circuits 21 and 24 to operate the transmission and reception shield antennas 22 and 23 in electromagnetic field resonance having a phase opposite to that of the transmission and reception antennas 12 and 13 respectively adjacent to the transmission and reception shield antennas.