NON-CONTACT POWER SUPPLY SYSTEM AND CONTROL METHOD FOR NON-CONTACT POWER SUPPLY SYSTEM
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United States of America Patent
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Issued Date -
Aug 13, 2015
app pub date -
Nov 15, 2012
filing date -
Nov 15, 2012
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Abstract
A non-contact power supply system compares transmission efficiency between a case of a first route mode of indirectly supplying power from a power supply apparatus to a power receiving apparatus through a relay apparatus and a case of a second route mode of directly supplying power without interposing the relay apparatus, and selects a route of higher transmission efficiency to supply the power. In one potential route mode, a power supply circuit of the power supply apparatus and a power receiving circuit of the relay apparatus are made to resonate, and a power transmission circuit of the relay apparatus and a power receiving circuit of the power receiving apparatus are made to resonate, but the power supply circuit of the power supply apparatus and the power receiving circuit of the power receiving apparatus are not allowed to resonate.
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