| 摘要 |
PROBLEM TO BE SOLVED: To provide a receiver for non-contact power supply in which magnetic saturation is less likely to occur even if there is a magnet on the charger side, and a request of thinning can be met.SOLUTION: A first magnetic material 10 is a soft magnetic sheet such as a ferrite sheet, and acts as a magnetic shield. A second magnetic material 20 is a magnetic metal green compact, and located on the inside of a coil 30. The first magnetic material 10 has a thickness of 0.1 mm, for example. The first magnetic material 10 has an initial permeability μ>50. The second magnetic material 20 has a thickness of 0.3 mm, for example. The second magnetic material 20 has an initial permeability μof 10≤μ≤120. The ratio &Dgr;μ/μof the differential permeability &Dgr;μ (the slope of relative permittivity) and the initial permeability μof the second magnetic material 20 is 0.5 or more at an applied magnetic field intensity of 2000 A/m. Wire size of the coil 30 is 0.25 mm, for example. |
