Electrical power transmission system and electrical power output device
First Claim
1. An electrical power transmission system, comprising:
- a power supply device including (a) a first resonant element having inductance and capacitance and that resonates at a first resonant frequency determined by the inductance and capacitance, (b) a frequency generator that generates an electrical power signal having a frequency that is the same as or approximately the same as the first resonant frequency determined by the inductance and the capacitance of the first resonant element, and (c) a first driven element that transmits the electrical power signal to the first resonant element by magnetic field resonance coupling;
a magnetic field coupling circuit that becomes coupled by magnetic field resonance coupling with the first resonant element and receives electrical power from the first resonant element by the magnetic field resonance coupling; and
a power receiving device including (a) a second resonant element that includes an inductance and a capacitance and that resonates at a second resonant frequency determined by the inductance and capacitance, the second resonant element receiving electrical power from the power supply device via the magnetic field coupling circuit by magnetic field resonance coupling with the magnetic field coupling circuit, and (b) a second driven element that receives the electrical power signal from the second resonant element by magnetic field resonance coupling,wherein,the first and second resonant elements have parallel magnetic fields,the magnetic field coupling circuit has a magnetic field that is orthogonal to the magnetic fields of the first and second resonant elements,the magnetic field coupling circuit is located midway between the first and second resonant elements, andat least the first resonant element and the magnetic field coupling circuit are located within a same device.
1 Assignment
0 Petitions
Accused Products
Abstract
A power transmission system having a first resonant element with a resonant frequency, a signal generator that generates an electrical power signal with a predetermined frequency that is the same as the resonant frequency of the first resonator, and a driven element that supplies the electrical power signal to the first resonator via magnetic field resonance coupling. A second resonator having a resonant frequency approximately the same as that of the first resonator can be positioned to receive the power from the first resonator. A magnetic coupling circuit can be magnetic field resonance couple to the first and second resonators for transferring the electrical power signal between them.
19 Citations
9 Claims
-
1. An electrical power transmission system, comprising:
-
a power supply device including (a) a first resonant element having inductance and capacitance and that resonates at a first resonant frequency determined by the inductance and capacitance, (b) a frequency generator that generates an electrical power signal having a frequency that is the same as or approximately the same as the first resonant frequency determined by the inductance and the capacitance of the first resonant element, and (c) a first driven element that transmits the electrical power signal to the first resonant element by magnetic field resonance coupling; a magnetic field coupling circuit that becomes coupled by magnetic field resonance coupling with the first resonant element and receives electrical power from the first resonant element by the magnetic field resonance coupling; and a power receiving device including (a) a second resonant element that includes an inductance and a capacitance and that resonates at a second resonant frequency determined by the inductance and capacitance, the second resonant element receiving electrical power from the power supply device via the magnetic field coupling circuit by magnetic field resonance coupling with the magnetic field coupling circuit, and (b) a second driven element that receives the electrical power signal from the second resonant element by magnetic field resonance coupling, wherein, the first and second resonant elements have parallel magnetic fields, the magnetic field coupling circuit has a magnetic field that is orthogonal to the magnetic fields of the first and second resonant elements, the magnetic field coupling circuit is located midway between the first and second resonant elements, and at least the first resonant element and the magnetic field coupling circuit are located within a same device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification