Inductive power transmission geometry
First Claim
1. A system for inductive power transmission, comprising:
- a first electronic device including an inner inductive coil positioned at least partially around a shield core;
a second electronic device including an outer inductive coil positioned around an aperture; and
a charging circuit coupled to a battery in at least one of the first or second electronic devices and configured to receive power from the first or second electronic device when the inner inductive coil is positioned within the aperture;
wherein;
the shield core concentrates magnetic flux around the inner inductive coil and the outer inductive coil.
1 Assignment
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Accused Products
Abstract
A first electronic device includes an inner inductive coil positioned at least partially around a shield core and a second electronic device includes an outer inductive coil positioned around an aperture. The first electronic device is operable to receive power from and/or transmit power to the second electronic device when a portion of the first electronic device is inserted into the aperture of the second electronic device, positioning the inner inductive coil within the aperture and within the outer inductive coil. When power is being transmitted between the first and second electronic devices, the shield core concentrates magnetic flux around the inner inductive coil and/or the outer inductive coil. In some implementations, an outer shield may be positioned at least partially around the outer inductive coil and may also concentrate magnetic flux around the inner inductive coil and/or the outer inductive coil.
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Citations
20 Claims
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1. A system for inductive power transmission, comprising:
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a first electronic device including an inner inductive coil positioned at least partially around a shield core; a second electronic device including an outer inductive coil positioned around an aperture; and a charging circuit coupled to a battery in at least one of the first or second electronic devices and configured to receive power from the first or second electronic device when the inner inductive coil is positioned within the aperture; wherein; the shield core concentrates magnetic flux around the inner inductive coil and the outer inductive coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 19, 20)
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8. An electronic device, comprising:
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a shield core; an inner inductive coil positioned at least partially around the shield core; and a charging circuit coupled to a battery configured to receive power from an additional electronic device when the inner inductive coil is positioned within an aperture of the additional electronic device; wherein; the shield core concentrates magnetic flux around the inner inductive coil and the outer inductive coil. - View Dependent Claims (9, 10, 11)
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12. An electronic device, comprising:
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an aperture; and an outer inductive coil positioned around the aperture; and a charging circuit coupled to a battery configured to transmit power to an additional electronic device when the outer inductive coil is positioned around an inner inductive coil of the additional electronic device; wherein; the inner inductive coil is positioned at least partially around a shield core that concentrates magnetic flux around the inner inductive coil and the outer inductive coil. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification