Wireless power transmission device
First Claim
1. A wireless power transmission device, comprising:
- a power transmitter adapted to convert an input DC power into an electromagnetic energy, the power transmitter includinga wave generating circuit adapted to generate a square wave control signal having a predetermined frequency and a predetermined duty cycle according to the input DC power;
a switching control drive circuit configured to convert the input DC power into an alternating electrical signal according to the received square wave control signal; and
a first coil coupling circuit configured to convert the alternating electrical signal from the switching control drive circuit into the electromagnetic energy and output the electromagnetic energy; and
a power receiver electromagnetically coupled with the power transmitter and adapted to receive the electromagnetic energy from the power transmitter;
wherein the power receiver includes a second coil coupling circuit electromagnetically coupled with the first coil coupling circuit and is adapted to receive the electromagnetic energy output from the first coil coupling circuit and convert the electromagnetic energy into the alternating electrical signal and a pair of rectifying and filtering circuits configured to convert the alternating electrical signal from the second coil coupling circuit into a DC electrical signal, the rectifying circuit being formed by a single diode.
1 Assignment
0 Petitions
Accused Products
Abstract
A wireless power transmission device comprises a power transmitter and a power receiver. The power transmitter is adapted to convert an input DC power into an electromagnetic energy. The power transmitter includes a wave generating circuit adapted to generate a square wave control signal having a predetermined frequency and a predetermined duty cycle according to the input DC power, a switching control drive circuit configured to convert the input DC power into an alternating electrical signal according to the received square wave control signal, and a first coil coupling circuit configured to convert the alternating electrical signal from the switching control drive circuit into the electromagnetic energy and output the electromagnetic energy. The power receiver is electromagnetically coupled with the power transmitter and adapted to receive the electromagnetic energy from the power transmitter.
10 Citations
8 Claims
-
1. A wireless power transmission device, comprising:
-
a power transmitter adapted to convert an input DC power into an electromagnetic energy, the power transmitter including a wave generating circuit adapted to generate a square wave control signal having a predetermined frequency and a predetermined duty cycle according to the input DC power; a switching control drive circuit configured to convert the input DC power into an alternating electrical signal according to the received square wave control signal; and a first coil coupling circuit configured to convert the alternating electrical signal from the switching control drive circuit into the electromagnetic energy and output the electromagnetic energy; and a power receiver electromagnetically coupled with the power transmitter and adapted to receive the electromagnetic energy from the power transmitter; wherein the power receiver includes a second coil coupling circuit electromagnetically coupled with the first coil coupling circuit and is adapted to receive the electromagnetic energy output from the first coil coupling circuit and convert the electromagnetic energy into the alternating electrical signal and a pair of rectifying and filtering circuits configured to convert the alternating electrical signal from the second coil coupling circuit into a DC electrical signal, the rectifying circuit being formed by a single diode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An apparatus, comprising:
-
a power transmitter installed on a first component of the apparatus and adapted to convert an input DC power into an electromagnetic energy, the power transmitter including a wave generating circuit adapted to generate a square wave control signal having a predetermined frequency and a predetermined duty cycle according to the input DC power; a switching control drive circuit configured to convert the input DC power into an alternating electrical signal according to the received square wave control signal; and a first coil coupling circuit configured to convert the alternating electrical signal from the switching control drive circuit into the electromagnetic energy and output the electromagnetic energy; and a power receiver installed on a second component of the apparatus and electromagnetically coupled with the power transmitter and adapted to receive the electromagnetic energy from the power transmitter and wherein the power receiver includes a second coil coupling circuit electromagnetically coupled with the first coil coupling circuit and is adapted to receive the electromagnetic energy output from the first coil coupling circuit and convert the electromagnetic energy into the alternating electrical signal and a pair of rectifying and filtering circuits configured to convert the alternating electrical signal from the second coil coupling circuit into a DC electrical signal, the rectifying circuit is formed by a single diode.
-
Specification