Receiving circuit for magnetic coupling resonant wireless power transmission
First Claim
1. A receiving circuit for magnetic coupling resonant wireless power transmission comprising:
- a resonant circuit comprising a resonant coil and a resonant capacitor;
a rectifying circuit having an input electrically connected to two terminals of the resonant capacitor;
a storage capacitor having two terminals electrically connected to an output of rectifying circuit; and
an output circuit having an input electrically connected to the two terminals of the storage capacitor and an output configured to be electrically connected to a battery, the output circuit configured to operate as a filter in a first mode and as a boost converter in a second mode.
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Accused Products
Abstract
The present invention provides a receiving circuit for magnetic coupling resonant wireless power transmission comprising: a resonant circuit, which comprises a resonant coil and a resonant capacitor; a rectifying circuit, the input of which is electrically connected to the two terminals of the resonant capacitor; a storage capacitor, the two terminals of which are electrically connected to the output of rectifying circuit; and a DC-DC converter, the input of which is electrically connected to the two terminals of the storage capacitor and the output of which is electrically connected to a rechargeable battery. The receiving circuit for magnetic coupling resonant wireless power transmission of the present invention can save energy and has high charge efficiency.
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Citations
18 Claims
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1. A receiving circuit for magnetic coupling resonant wireless power transmission comprising:
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a resonant circuit comprising a resonant coil and a resonant capacitor; a rectifying circuit having an input electrically connected to two terminals of the resonant capacitor; a storage capacitor having two terminals electrically connected to an output of rectifying circuit; and an output circuit having an input electrically connected to the two terminals of the storage capacitor and an output configured to be electrically connected to a battery, the output circuit configured to operate as a filter in a first mode and as a boost converter in a second mode. - View Dependent Claims (2, 3, 4, 5)
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6. A system comprising:
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a resonant wireless transmitting circuit; and a receiving circuit comprising; a resonant circuit comprising a resonant coil and a resonant capacitor; a rectifying circuit having an input electrically connected to an output of the resonant circuit; a storage capacitor having two terminals electrically connected to an output of rectifying circuit; and an output circuit configured to operate as a filter in first mode and as a boost converter in a second mode and comprising an inductor, a diode, a metal oxide semiconductor field effect transistor, a filtering capacitor and a first switch, wherein a first terminal of the inductor is electrically connected to a first one of the two terminals of the storage capacitor, a second terminal of the inductor is electrically connected to an anode of the diode and a drain of the metal oxide semiconductor field effect transistor, a source of the metal oxide semiconductor field effect transistor is electrically connected to a second one of the two terminals of the storage capacitor, a cathode of the diode and a source of the metal oxide semiconductor field effect transistor act as an output of the output circuit configured to be electrically connected to a battery, and the filtering capacitor and the first switch are connected in series between the drain and the source of the metal oxide semiconductor field effect transistor. - View Dependent Claims (7, 8, 9, 10, 11)
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12. An apparatus comprising:
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a resonant circuit comprising a resonant coil and a resonant capacitor; a rectifying circuit having an input electrically connected to the resonant capacitor; a storage capacitor electrically connected to an output of rectifying circuit; and an output circuit having an input electrically connected to the storage capacitor and an output configured to be connected to a battery, the output circuit further configured to operate as a filter in a first mode and as a boost converter in a second mode. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification