Power transmitting apparatus, power receiving apparatus, and power transmission system

A power transmitting apparatus forming a pair with a power receiving apparatus in which a voltage step-down circuit is connected between a power receiving apparatus side active electrode and a power receiving apparatus side passive electrode, the power transmitting apparatus comprising:

• a power transmitting apparatus side active electrode that faces the power receiving apparatus side active electrode;
• a power transmitting apparatus side passive electrode that faces the power receiving apparatus side passive electrode;
• and
• a high-frequency high-voltage generator circuit connected between the power transmitting apparatus side active electrode and the power transmitting apparatus side passive electrode,
• wherein the power transmitting apparatus side active electrode is connected to the power receiving apparatus side active electrode through capacitance, and the power transmitting side active electrode is directly electrically connected to the power receiving apparatus side passive electrode.

A power transmission system comprising:

• a power transmitting apparatus including:
• a power transmitting apparatus side active electrode;
• a power transmitting apparatus side passive electrode;
• and
• a high-frequency high-voltage generator circuit connected between the power transmitting apparatus side active electrode and the power transmitting apparatus side passive electrode;
• and
• a power receiving apparatus including:
• a power receiving apparatus side active electrode;
• a power receiving apparatus side passive electrode;
• a voltage step-down circuit that decreases a voltage generated between the power receiving apparatus side active electrode and the power receiving apparatus side passive electrode;
• and
• a load circuit that receives an output voltage of the voltage step-down circuit as a power supply voltage;
• wherein the power transmitting apparatus side active electrode is connected to the power receiving apparatus side active electrode through capacitance generated between the power transmitting apparatus side active electrode and the power receiving apparatus side active electrode, and the power transmitting apparatus side passive electrode is directly electrically connected to the power receiving apparatus side passive electrode,
• wherein the power transmitting apparatus includes a mounting surface formed of first and second surfaces substantially perpendicular to each other,
• wherein the power receiving apparatus includes a third surface in contact with the first surface of the power transmitting apparatus and a fourth surface in contact with the second surface of the power transmitting apparatus,
• wherein the power transmitting apparatus side passive electrode is provided on the first surface, and the power transmitting apparatus side active electrode is provided along the second surface, and
• wherein the power receiving apparatus side passive electrode is provided on the third surface, and the power receiving apparatus side active electrode is provided along the fourth surface.

A power transmission system comprising:

• a power transmitting apparatus including:
• a power transmitting apparatus side active electrode;
• a power transmitting apparatus side passive electrode;
• and
• a high-frequency high-voltage generator circuit connected between the power transmitting apparatus side active electrode and the power transmitting apparatus side passive electrode;
• and
• a power receiving apparatus including:
• a power receiving apparatus side active electrode;
• a power receiving apparatus side passive electrode;
• a voltage step-down circuit that decreases a voltage generated between the power receiving apparatus side active electrode and the power receiving apparatus side passive electrode;
• and
• a load circuit that receives an output voltage of the voltage step-down circuit as a power supply voltage;
• wherein the power transmitting apparatus side active electrode is connected to the power receiving apparatus side active electrode through capacitance generated between the power transmitting apparatus side active electrode and the power receiving apparatus side active electrode, and the power transmitting apparatus side passive electrode is directly electrically connected to the power receiving apparatus side passive electrode,
• wherein the power transmitting apparatus includes a mounting surface for mounting the power receiving apparatus,
• wherein the power transmitting apparatus side passive electrode is provided on the mounting surface of the power transmitting apparatus, and the power transmitting apparatus side active electrode is provided along the mounting surface, and
• wherein the power receiving apparatus side passive electrode is provided on the bottom surface of the power receiving apparatus and the power receiving apparatus side active electrode is provided along the bottom surface of the power receiving apparatus.