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US 2018/0006500 A1Published application
Power harvesting circuit and applications thereof
AssigneeRFMicron, Inc.
InventorsAhmed Younis, Shahriar Rokhsaz
Life of this patent
Estimating the term…
Abstract
A power harvesting circuit a p-channel circuit, an n-channel circuit, an AC capacitance circuit, and an output capacitance circuit. The p-channel circuit includes a first diode element and a first start-up current circuit operably coupled to increase start-up current of the first diode element. The n-channel circuit includes a second diode element and a second start-up current circuit operably coupled to increase start-up current of the second diode element. The AC coupling capacitance circuit is coupled to the p-channel circuit and the n-channel circuit. The output capacitance circuit is coupled to the p-channel circuit and the n-channel circuit.
Claims20
A power harvesting circuit comprises:
- a p-channel circuit that includes:
- a first diode element;
- and
- a first start-up current circuit operably coupled to increase start-up current of the first diode element;
- a n-channel circuit that includes:
- a second diode element;
- and
- a second start-up current circuit operably coupled to increase start-up current of the second diode element;
- an alternating current (AC) coupling capacitance circuit coupled to the p-channel circuit and the n-channel circuit;
- and
- an output capacitance circuit coupled to the p-channel circuit and the n-channel circuit, wherein the p-channel circuit and the n-channel circuit rectify a received radio frequency (RF) signal to produce a rectified signal and the output capacitance circuit filters the rectified signal to produce a direct current (DC) output.
8 more elements
A power harvesting circuit comprises:
- a p-channel circuit that includes:
- a first diode element;
- and
- a first diode voltage reduction circuit coupled to reduce a diode voltage of the first diode element;
- a n-channel circuit that includes:
- a second diode element;
- and
- a second diode voltage reduction circuit coupled to reduce a diode voltage of the second diode element;
- an alternating current (AC) coupling capacitance circuit coupled to the p-channel circuit and the n-channel circuit;
- and
- an output capacitance circuit coupled to the p-channel circuit and the n-channel circuit, wherein the p-channel circuit and the n-channel circuit rectify a received radio frequency (RF) signal to produce a rectified signal and the output capacitance circuit filters the rectified signal to produce a direct current (DC) output.
8 more elements
A power harvesting circuit comprises:
- a first p-channel circuit that includes:
- a first diode element;
- a first start-up current circuit operably coupled to increase start-up current of the first diode element;
- a n-channel circuit that includes:
- a second diode element;
- a second start-up current circuit operably coupled to increase start-up current of the second diode element;
- a second p-channel circuit that includes:
- a third diode element;
- a third start-up current circuit operably coupled to increase start-up current of the third diode element;
- a first capacitance circuit;
- a second capacitance circuit;
- and
- a third capacitance circuit, wherein the first capacitance circuit is coupled to a first leg of a received radio frequency (RF) signal and to the first p-channel circuit, wherein the first p-channel circuit is further coupled to the second capacitance circuit and to the n-channel circuit, wherein the n-channel circuit is further coupled to the first capacitance circuit and to the second p-channel circuit, wherein the second p-channel circuit is further coupled to the third capacitance circuit to provide an output voltage, and wherein the second and third capacitance circuits are further coupled to a second leg of the RF signal.
10 more elements
A power harvesting circuit comprises:
- a first p-channel circuit that includes:
- a first diode element;
- a first diode voltage reduction circuit coupled to reduce a diode voltage of the first diode element;
- and
- a n-channel circuit that includes:
- a second diode element;
- a second diode voltage reduction circuit coupled to reduce a diode voltage of the second diode element;
- and
- a second p-channel circuit that includes:
- a third diode element;
- a third diode voltage reduction circuit coupled to reduce a diode voltage of the third diode element;
- and
- a first capacitance circuit;
- a second capacitance circuit;
- and
- a third capacitance circuit, wherein the first capacitance circuit is coupled to a first leg of a received radio frequency (RF) signal and to the first p-channel circuit, wherein the first p-channel circuit is further coupled to the second capacitance circuit and to the n-channel circuit, wherein the n-channel circuit is further coupled to the first capacitance circuit and to the second p-channel circuit, wherein the second p-channel circuit is further coupled to the third capacitance circuit to provide an output voltage, and wherein the second and third capacitance circuits are further coupled to a second leg of the RF signal.
13 more elements
Dependencies are inferred from the claim text.