WIRELESS POWER RECEIVING APPARATUS
First Claim
Patent Images
1. A wireless power receiving apparatus configured to receive an electric power signal including any one of an electric field, a magnetic field, and an electromagnetic field, transmitted from a wireless power supply apparatus, the wireless power receiving apparatus comprising:
- a reception coil configured to receive the electric power signal;
a first capacitor arranged in series with the reception coil;
a switch and a second capacitor arranged in series on a path arranged in parallel with the first capacitor; and
a control unit configured to control an on/off operation of the switch, with a duty ratio that corresponds to the frequency of the electric power signal.
2 Assignments
0 Petitions
Accused Products
Abstract
In a wireless power supply system, a first capacitor is arranged in series with an antenna. A second capacitor and a switch are arranged in series on a path arranged in parallel with the first capacitor. A control unit adjusts the duty ratio of the switch according to the frequency of an electric power signal.
256 Citations
26 Claims
-
1. A wireless power receiving apparatus configured to receive an electric power signal including any one of an electric field, a magnetic field, and an electromagnetic field, transmitted from a wireless power supply apparatus, the wireless power receiving apparatus comprising:
-
a reception coil configured to receive the electric power signal; a first capacitor arranged in series with the reception coil; a switch and a second capacitor arranged in series on a path arranged in parallel with the first capacitor; and a control unit configured to control an on/off operation of the switch, with a duty ratio that corresponds to the frequency of the electric power signal. - View Dependent Claims (2, 3, 4, 21)
-
-
5. A wireless power receiving apparatus configured to receive an electric power signal including any one of an electric field, a magnetic field, and an electromagnetic field, transmitted from a wireless power supply apparatus, the wireless power receiving apparatus comprising:
-
a reception coil configured to receive the electric power signal; an auxiliary coil and a capacitor arranged in series with the reception coil; a switch arranged in parallel with the auxiliary coil; and a control unit configured to control an on/off operation of the switch, with a duty ratio that corresponds to the frequency of the electric power signal. - View Dependent Claims (6, 7, 22)
-
-
8. A wireless power receiving apparatus configured to receive an electric power signal including any one of an electric field, a magnetic field, and an electromagnetic field, transmitted from a wireless power supply apparatus, the wireless power receiving apparatus comprising:
-
a reception coil configured to receive the electric power signal; a first auxiliary coil and a first capacitor arranged in series with the reception coil; a second auxiliary coil configured such that it shares a common core with the first auxiliary coil; a second capacitor and a third capacitor arranged in series such that they and the second auxiliary coil form a closed loop; a switch arranged in parallel with the third capacitor; and a control unit configured to control an on/off operation of the switch, with a duty ratio that corresponds to the frequency of the electric power signal. - View Dependent Claims (9, 10, 23)
-
-
11. A wireless power supply apparatus configured to transmit an electric power signal including any one of an electric field, a magnetic field, and an electromagnetic field, the wireless power supply apparatus comprising:
-
a transmission coil configured to transmit the electric power signal; a first capacitor arranged in series with the transmission coil; a switch and a second capacitor arranged in series on a path arranged in parallel with the first capacitor; and a control unit configured to perform an on/off operation of the switch, with a duty ratio that corresponds to the frequency of the electric power signal. - View Dependent Claims (12, 13, 14, 24)
-
-
15. A wireless power supply apparatus configured to transmit an electric power signal including any one of an electric field, a magnetic field, and an electromagnetic field, the wireless power supply apparatus comprising:
-
a transmission coil configured to transmit the electric power signal; an auxiliary coil and a capacitor arranged in series with the transmission coil; a switch arranged in parallel with the auxiliary coil; and a control unit configured to control an on/off operation of the switch, with a duty ratio that corresponds to the frequency of the electric power signal. - View Dependent Claims (16, 17, 25)
-
-
18. A wireless power supply apparatus configured to transmit an electric power signal including any one of an electric field, a magnetic field, and an electromagnetic field, the wireless power supply apparatus comprising:
-
a transmission coil configured to transmit the electric power signal; a first auxiliary coil and a first capacitor arranged in series with the transmission coil; a second auxiliary coil configured such that it shares a common core with the first auxiliary coil; a second capacitor and a third capacitor arranged in series such that they and the second auxiliary coil form a closed loop; a switch arranged in parallel with the third capacitor; and a control unit configured to control an on/off operation of the switch, with a duty ratio that corresponds to the frequency of the electric power signal. - View Dependent Claims (19, 20, 26)
-
Specification