摘要:
A detection device includes a coil configured to be electromagnetically coupled with an outside, and a detection section connected to a circuit including the coil. The detection section is configured to measure a Q value of the circuit using an alternating-current signal at a frequency different from a frequency of an alternating-current signal of contactless power feed.
摘要:
A detection device includes a coil configured to be electromagnetically coupled with an outside, and a detection section connected to a circuit including the coil. The detection section is configured to measure a Q value of the circuit using an alternating-current signal at a frequency different from a frequency of an alternating-current signal of contactless power feed.
摘要:
A power receiving circuit, a power transmitting circuit, an apparatus, and a feed system are disclosed. The power receiving circuit receives power in a noncontact manner, and includes an LC parallel resonant circuit and a reactance element that is electrically connected in series to the LC parallel resonant circuit. The reactive element may be a capacitive or inductive element. In effect, a coil or capacitor in the LC parallel resonant circuit and the reactance element define another LC resonant circuit, namely, an LC series resonant circuit. The power transmitting circuit transmits power in a noncontact manner, and in one example, may also include a similar configuration.
摘要:
There are provided a detector and the like that are capable of conveniently detecting conductor or a circuit including a coil. The detector includes a detecting section that determines a Q value or a degree of variation thereof in a circuit including a coil capable of electromagnetic coupling with an external object and that performs detection concerning a state of the electromagnetic coupling with the external object based on a determined result.
摘要:
There are provided a detector and the like that are capable of conveniently detecting conductor or a circuit including a coil. The detector includes a detecting section that determines a Q value or a degree of variation thereof in a circuit including a coil capable of electromagnetic coupling with an external object and that performs detection concerning a state of the electromagnetic coupling with the external object based on a determined result.
摘要:
A power receiving circuit, a power transmitting circuit, an apparatus, and a feed system are disclosed. The power receiving circuit receives power in a noncontact manner, and includes an LC parallel resonant circuit and a reactance element that is electrically connected in series to the LC parallel resonant circuit. The reactive element may be a capacitive or inductive element. In effect, a coil or capacitor in the LC parallel resonant circuit and the reactance element define another LC resonant circuit, namely, an LC series resonant circuit. The power transmitting circuit transmits power in a noncontact manner, and in one example, may also include a similar configuration.
摘要:
Provided is a device including a receiving coil, including a core having a magnetic body, a coil portion in which a wire is wound around the core and which is electromagnetically coupled to an external coil to transmit power, and a non-magnetic body arranged at a predetermined distance from a side face of the coil portion.
摘要:
A power supply device includes: a power supply unit configured to output the power of a mainframe; and a power transmission cable configured to supply the power output from the power supply unit to the mainframe via a connector; with the power transmission cable including a mainframe side high-frequency cutoff portion disposed between the power supply terminal of the connector, a power supply unit side high-frequency cutoff portion, which is disposed on the power supply unit side at a predetermined length from the connector, configured to restrict the length of a portion serving as an antenna, a first transmission line used for power supply to the mainframe via the mainframe side high-frequency cutoff portion, and a second transmission line to be connected to a tuner of the mainframe via the connector.
摘要:
A receiving apparatus includes: an electronic device; a first antenna which is provided so as to be separate from a main body of the electronic device and receives broadcast waves; and a power transmission cable which transmits power to the electronic device. In the power transmission cable, a high-frequency blocking section is disposed on the side of a power source, and at least a part of the power transmission cable functions as a second antenna receiving a broadcast wave. The electronic device includes a diversity processor executing a diversity process on a signal received by the first antenna and a signal received by the second antenna.
摘要:
An earphone antenna in which a balun is connected to one side and the other side having an audio/high-frequency dual-function signal connecting the earphone unit via a loading coil and wireless equipment connected to the balun, the loading coil selecting low impedance for fundamental frequency and selecting to obtain high impedance for higher frequencies, in order to integrate earphone and antenna.