Wireless power receiver and wireless power transferring method
First Claim
1. A wireless power receiver to receive power wirelessly from a wireless power transmitter, the wireless power receiver comprising:
- a first reception coil coupled with a resonant coil to receive a positive AC power from the resonant coil;
a first capacitor connected in series to the first reception coil;
a first rectifying diode configured to rectify the positive AC power received through the first capacitor;
a second reception coil connected to the first reception coil and coupled with the resonant coil to receive a negative AC power from the resonant coil;
a second capacitor connected in series to the second reception coil;
a second rectifying diode configured to rectify the negative AC power received through the second capacitor; and
a smoothing capacitor connected directly to both the first rectifying diode and the second rectifying diode;
wherein the wireless power receiver changes a transferring path of the power provided to a load according to a polarity variation of the AC power received through the first and second reception coils, andwherein the smoothing capacitor includes a first terminal connected directly to a ground terminal and a second terminal connected directly to the load.
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Accused Products
Abstract
Disclosed is a wireless power receiver to transfer power wirelessly received from a wireless power transmitter to a load. The wireless power receiver includes a first reception induction coil coupled with a reception resonant coil to receive AC power; a first rectifying diode to rectify the AC power received through the first reception induction coil; a second reception induction coil connected to the first reception induction coil and coupled with the reception resonant coil to receive the AC power; and a second rectifying diode to rectify the AC power received through the second reception induction coil, wherein the wireless power receiver changes a transferring path of the power provided to the load according to a polarity variation of the AC power received through the first and second reception induction coils.
11 Citations
11 Claims
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1. A wireless power receiver to receive power wirelessly from a wireless power transmitter, the wireless power receiver comprising:
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a first reception coil coupled with a resonant coil to receive a positive AC power from the resonant coil; a first capacitor connected in series to the first reception coil; a first rectifying diode configured to rectify the positive AC power received through the first capacitor; a second reception coil connected to the first reception coil and coupled with the resonant coil to receive a negative AC power from the resonant coil; a second capacitor connected in series to the second reception coil; a second rectifying diode configured to rectify the negative AC power received through the second capacitor; and a smoothing capacitor connected directly to both the first rectifying diode and the second rectifying diode; wherein the wireless power receiver changes a transferring path of the power provided to a load according to a polarity variation of the AC power received through the first and second reception coils, and wherein the smoothing capacitor includes a first terminal connected directly to a ground terminal and a second terminal connected directly to the load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification