Impedance compensation based on ratio of bus voltage and amplifier fundamental AC output voltage
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United States of America Patent
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May 22, 2018
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app pub date -
May 5, 2017
filing date -
May 5, 2016
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Abstract
Methods and apparatus provide compensation for impedance changes in a network energized by an amplifier, such as a class E amplifier. In embodiments, bus voltage amplifier fundamental AC output voltage can be used to generate a feedback signal for adjusting impedance of one or more components in the network. In embodiments, the amplifier fundamental AC output voltage is determined from current to the load, wherein the load is coupled to the amplifier by an LCL impedance matching network.
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