Load Control for Bi-Directional Inductive Power Transfer Systems
First Claim
1. A control method for use in a primary side power converter of an inductive power transfer (IPT) system, the method comprising the steps of:
- sensing power transfer between the primary side power converter and one or more IPT pick-ups; and
varying the operating frequency of the primary side power converter in response to the sensing.
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Accused Products
Abstract
A control method for use in a primary side power converter (1) of an inductive power transfer (IPT) system. The power transfer from the primary side to one or more secondary pick-ups is monitored, and the operating frequency of the primary side power converter (1) is varied in proportion to a difference between the monitored power transfer and a power capability of the primary side power converter. The frequency variation can be sensed by the or each pick-up (2) to regulate the power transfer and to prevent overloading from occurring.
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Citations
1 Claim
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1. A control method for use in a primary side power converter of an inductive power transfer (IPT) system, the method comprising the steps of:
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sensing power transfer between the primary side power converter and one or more IPT pick-ups; and varying the operating frequency of the primary side power converter in response to the sensing.
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Specification