INDUCTIVELY COUPLED POWER TRANSFER SYSTEM
First Claim
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1. An inductively-coupled power transfer (ICPT) system pick-up including an asymmetric magnetically permeable core.
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Abstract
An inductively coupled power transfer system has a power pick-up that uses an asymmetrical magnetically permeable core (103, 105, 106, 107). Such cores have been found to provide a significant increase in the output power for given losses and given core volume when transferring power from a primary conductive path (101) to a secondary coil (104) provided on the core.
13 Citations
21 Claims
- 1. An inductively-coupled power transfer (ICPT) system pick-up including an asymmetric magnetically permeable core.
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8. An inductively-coupled power transfer (ICPT) system comprising:
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a primary conductive path connectable to a power source for providing alternating current to the primary conductive path, the primary conductive path in use supplying electrical energy, the primary conductive path comprising first and second spaced apart conductors that extend along the path; a pick-up comprising a secondary coil provided about a magnetically permeable core, the secondary coil in use receiving electrical energy from the primary conductive path through inductive coupling; wherein, at least when the secondary coil is coupled to the primary conductive path, the core comprises a first arm that extends between the first and second conductors, the first arm comprising first and second ends, a second arm that extends from the first arm at or closer to the first end in a direction substantially perpendicular to the first arm, and a third arm that extends from the first arm at or closer to the second end in an opposite direction to the second arm. - View Dependent Claims (9, 10, 11, 12, 13, 14, 20)
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15. An inductively coupled power transfer (ICPT) system comprising:
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a primary conductive path connectable to a power source for providing alternating current to the primary conductive path, the primary conductive path in use supplying electrical energy, the primary conductive path comprising spaced apart conductors defining first and second sides that extend along a first axis; a pick-up including a secondary coil wound about a magnetically permeable core, the secondary coil in use receiving electrical energy from the primary conductive path through inductive coupling; wherein the magnetically permeable core extends between the first and second sides and is asymmetrical about an imaginary plane extending transverse to a plane through the conductors of the first and second sides. - View Dependent Claims (16, 17, 18)
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21-22. -22. (canceled)
Specification