Harmonic harvester for improved RF-to-DC rectifying efficiency
First Claim
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1. An electrical circuit comprising:
- A direct-current (DC) blocking circuit in communication with an output of an alternating-current-to-direct-current (AC-to-DC) converter circuit configured to provide DC signals and un-converted AC signals, the DC blocking circuit comprising an input and an output and configured to pass the un-converted AC signals and block the DC signals;
an impedance matching circuit comprising an input and an output and configured to receive the un-converted AC signals, wherein the input of the impedance matching circuit is in communication with the output of the DC blocking circuit;
a rectifying circuit comprising an input and an output, wherein the input of the rectifying circuit is in communication with the output of the impedance matching circuit; and
an AC blocking circuit comprising an input and an output and configured to pass the DC signals and block the un-converted AC signals, wherein the input of the AC blocking circuit is in communication with both the output of the AC-to-DC converter circuit and the input of the DC blocking circuit.
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Abstract
A harmonic harvesting circuit design for harvesting un-rectified AC power contained in the fundamental and harmonic frequencies at the output of conventional rectifying circuits.
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Citations
23 Claims
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1. An electrical circuit comprising:
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A direct-current (DC) blocking circuit in communication with an output of an alternating-current-to-direct-current (AC-to-DC) converter circuit configured to provide DC signals and un-converted AC signals, the DC blocking circuit comprising an input and an output and configured to pass the un-converted AC signals and block the DC signals; an impedance matching circuit comprising an input and an output and configured to receive the un-converted AC signals, wherein the input of the impedance matching circuit is in communication with the output of the DC blocking circuit; a rectifying circuit comprising an input and an output, wherein the input of the rectifying circuit is in communication with the output of the impedance matching circuit; and an AC blocking circuit comprising an input and an output and configured to pass the DC signals and block the un-converted AC signals, wherein the input of the AC blocking circuit is in communication with both the output of the AC-to-DC converter circuit and the input of the DC blocking circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An electrical circuit comprising:
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a direct-current (DC) blocking circuit in communication with an output of a first alternating-current-to-direct-current (AC-to-DC) converter circuit configured to provide DC signals and un-converted AC signals, the DC blocking circuit comprising an input and an output and configured to pass the un-converted AC signals and block the DC signals; an impedance matching circuit comprising an input and an output, wherein the input of the impedance matching circuit is in communication with the output of the DC blocking and is configured to receive the un-converted AC signals circuit; a second AC-to-DC converter circuit comprising an input and an output, wherein the input of the second AC-to-DC converter circuit is in communication with the output of the impedance matching electrical circuit and is configured to receive the un-converted AC signals; and an AC blocking circuit comprising an input and an output, wherein the input of the AC blocking circuit is in communication with the output of the first AC-to-DC converter circuit and is configured to pass the DC signals and block the unconverted AC signals. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. An electrical circuit comprising:
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a direct-current (DC) blocking circuit in communication with an output of a first alternating-current-to-direct-current (AC-to-DC) circuit, the DC blocking circuit comprising an input and an output; an impedance matching circuit comprising an input and an output, wherein the input of the impedance matching circuit is in communication with the output of the DC blocking circuit; a second AC-to-DC converter circuit comprising an input and an output, wherein the input of the second AC-to-DC converter circuit is in communication with the output of the impedance matching circuit; and wherein the output of the second AC-to-DC converter circuit feeds into an input of the first AC-to-DC converter circuit to form a feedback loop. - View Dependent Claims (21, 22, 23)
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Specification