Nonlinear resonance circuit for wireless power transmission and wireless power harvesting
First Claim
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1. A nonlinear resonance circuit, comprising:
- an inductor; and
a capacitor electrically coupled to the inductor, where one of the inductor or the capacitor is nonlinear and its reactance is a function of voltage or current that is approximated by a polynomial expansion, where the polynomial expansion includes a constant and even order terms, such that the even order terms of the polynomial expansion are dominant and response of the nonlinear resonance circuit to an excitation signal is described by a Duffing equation.
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Abstract
A nonlinear resonator is presented that enhances the bandwidth while providing high resonance amplitude. The nonlinear resonance circuit is comprised of an inductor electrically coupled to a capacitor, where either the inductor or capacitor is nonlinear. Response of the nonlinear resonance circuit to an excitation signal is described by a family of second-order differential equations with cubic-order nonlinearity, known as Duffing equations.
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Citations
24 Claims
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1. A nonlinear resonance circuit, comprising:
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an inductor; and a capacitor electrically coupled to the inductor, where one of the inductor or the capacitor is nonlinear and its reactance is a function of voltage or current that is approximated by a polynomial expansion, where the polynomial expansion includes a constant and even order terms, such that the even order terms of the polynomial expansion are dominant and response of the nonlinear resonance circuit to an excitation signal is described by a Duffing equation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A nonlinear resonance circuit, comprising:
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an inductor; and a nonlinear capacitor electrically coupled in series or shunt with the inductor, where capacitance of the nonlinear capacitor is an even function of the voltage or a polynomial expansion of a function having exponents with even values, and response of the nonlinear resonance circuit to an excitation signal is described by a second-order differential equation with cubic or higher order nonlinearity terms. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A nonlinear resonance circuit, comprising:
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a nonlinear inductor; and a capacitor electrically coupled to the inductor, where inductance of the nonlinear inductor is an even function of conduction current or a polynomial expansion of a function having exponents with even values, and response of the nonlinear resonance circuit to an excitation signal is described by a second-order differential equation with cubic or higher order nonlinearity terms. - View Dependent Claims (23, 24)
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Specification