Non-contact power transmission system, receiving apparatus and transmitting apparatus

A non-contact power transmission system, comprising:

• a primary coil including a power supply coil and a magnetic resonance coil;
• and
• a secondary coil including a load coil, thereby transmitting an electric power from said power supply coil at a self-resonating frequency of said magnetic resonance coil, which is determined by a parasitic capacitance between wound wires of the coil and a self inductance of the coil, and taking out the electric power supplied, from the load coil of said secondary coil through magnetic coupling, with non-contact, wherein
• a resonance circuit, which resonates with the inductance of the load coil, is added to the load coil of said secondary coil, through at least a series connection or a parallel connection.

A non-contact power transmission system, comprising:

• a primary coil including a power supply coil and a magnetic resonance coil;
• and
• a secondary coil including at least a load coil, thereby transmitting an electric power from said power supply coil at a self-resonating frequency of said magnetic resonance coil, which is determined by a parasitic capacitance between wound wires of the coil and a self inductance of the coil, and taking out the electric power supplied, from the load coil of said secondary coil through magnetic coupling, with non-contact, wherein
• said magnetic resonance coil has at least two (2) or more coils, differing from in the self-resonating frequency thereof, and
• the electric power is supplied to said plural numbers of magnetic resonance coils from said power supply coil.

In a non-contact power transmission system, comprising, at least:

• a power transmitting apparatus for transmitting an electric power with non-contact;
• and
• a power receiving apparatus for receiving the electric power transmitted from said power transmitting apparatus, wherein
• said power receiving apparatus has at least a resonance coil and a load coil, magnetically coupling with each other, and is connected with a first resonance circuit for resonating with said resonance coil at a first frequency, as well as, connected with a second resonance circuit for resonating at a second frequency through a filter, and further a first input terminal is provided, wherein said filter has such structure that it passes the signal of said second frequency therethrough but blocks the signal of said first frequency thereby, and from said first output terminal is outputted a signal of said second frequency while said load coil outputs a signal of said first frequency through magnetic coupling with magnet from said resonance coil.

In a non-contact power transmission system, comprising, at least:

• a power transmitting apparatus for transmitting an electric power with non-contact;
• and
• a power receiving apparatus for receiving the electric power transmitted from said power transmitting apparatus, wherein
• said power transmitting apparatus has at least a power supply coil and a resonance coil, magnetically coupling with each other, and is connected with a first resonance circuit for resonating with said resonance coil at a first frequency, as well as, connected with a second resonance circuit for resonating at a second frequency through a filter, and further a first input terminal is provided, wherein said filter has such structure that it passes the signal of said second frequency therethrough but blocks the signal of said first frequency thereby, and the signal of said second frequency is supplied from said first input terminal, while from said power supply coil is supplied the signal of said first frequency.

A non-contact power transmission system, comprising:

• a power transmitting apparatus for transmitting an electric power to be transmitted to a power receiving apparatus, with non-contact, including a first non-contact communication means;
• and
• a power receiving apparatus, including a second non-contact communication means for conducting communication between said non-contact communication means, with non-contact, and a power receiving means for receiving the electric power transmitted from said power transmitting apparatus, with non-contact, and sharing an antenna for conducting the non-contact communication and a antenna coil for receiving the electric power transmitted from said power transmitting apparatus, in common, wherein
• the power receiving means of said power receiving apparatus has such structure that a first resonance circuit is connected with a power receiving coil, in parallel, and the electric power rectified by a rectifying means is taken out, after connecting a second resonance circuit through a first filter circuit, in series or in parallel, and said second non-contact communication means has such structure that a load coil is provided in vicinity of the power receiving coil so as to magnetically couple with said power receiving coil, thereby to provide said load coil with a modulator/demodulator circuit for communicating with said first non-contact communication means through the second filter circuit,
• said first resonance circuit has a capacitor of such capacitance value that it resonates with an inductance value of said power receiving coil at a signal frequency for conducting non-contact communication, said second resonance circuit has a capacitor of such capacitance value that it resonates with said power receiving coil at a signal frequency for conducting non-contact transmission of the electric power, and wherein, said first filter circuit passes therethrough the frequency for conducting the non-contact transmission of the electric power, while blocking the signal frequency for conducting the non-contact communication, and said second filter circuit passes therethrough the signal frequency for conducting the non-contact communication, while blocking the frequency for conducting the non-contact transmission of the electric power.

A non-contact power transmission system, comprising:

• a power transmitting apparatus, having a first non-contact communication means for conducting non-contact transmission of data for authentication and/or reading/writing of data, for transmitting electric power to be transmitted to a power receiving apparatus with non-contact;
• and
• a power receiving apparatus having a second non-contact communication means for conducting non-contact communication between said non-contact communication means and a power receiving means for receiving the electric power transmitted from said power transmitting apparatus with non-contact, wherein
• said second non-contact communication means has a first questioner and a first responder in common in the structure thereof, and if said first non-contact communication means is a second questioner, it turns said first responder into ON condition when receiving a signal from a second questioner, so as to transmit a response data signal responding to a question data signal from the second questioner, and if said first non-contact communication means is a second responder, it turns said first questioner into ON condition, so as to transmit a question data signal to said second responder, and also conducts receiving of a response data signal from the second responder.