APPARATUS AND METHOD OF PROTECTING POWER RECEIVER OF WIRELESS POWER TRANSMISSION SYSTEM
First Claim
1. A wireless power receiver comprising:
- a rectifier comprising an input and an output, and configured to receive a signal through the input, to rectify the signal to produce a rectified signal, and to output the rectified signal through the output;
a capacitor connected to the output of the rectifier and to ground;
a direct current-to-direct current (DC/DC) converter connected to the output of the rectifier and to a load, and configured to convert the rectified signal to a power, and to provide the power to the load; and
a device configured to create a short circuit to protect the rectifier and/or the capacitor when a voltage greater than a threshold voltage is applied to the input of the rectifier and/or the output of the rectifier.
1 Assignment
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Accused Products
Abstract
An apparatus and method of protecting a power receiver of a wireless power transmission system are provided. A wireless power receiver includes a rectifier comprising an input and an output, and configured to receive a signal through the input, to rectify the signal to produce a rectified signal, and to output the rectified signal through the output, and a capacitor connected to the output of the rectifier and to ground. The wireless power receiver further includes a direct current-to-direct current (DC/DC) converter connected to the output of the rectifier and to a load, and configured to convert the rectified signal to a power, and to provide the power to the load, and a device configured to create a short circuit to protect the rectifier and/or the capacitor when a voltage greater than a threshold voltage is applied to the input of the rectifier and/or the output of the rectifier.
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Citations
20 Claims
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1. A wireless power receiver comprising:
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a rectifier comprising an input and an output, and configured to receive a signal through the input, to rectify the signal to produce a rectified signal, and to output the rectified signal through the output; a capacitor connected to the output of the rectifier and to ground; a direct current-to-direct current (DC/DC) converter connected to the output of the rectifier and to a load, and configured to convert the rectified signal to a power, and to provide the power to the load; and a device configured to create a short circuit to protect the rectifier and/or the capacitor when a voltage greater than a threshold voltage is applied to the input of the rectifier and/or the output of the rectifier. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wireless power receiver comprising:
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a rectifier comprising an input and an output, and configured to receive a signal through the input, to rectify the signal to produce a rectified signal, and to output the rectified signal through the output; a capacitor connected to the output of the rectifier and to ground; a direct current-to-direct current (DC/DC) converter connected to the output of the rectifier and to a load, and configured to convert the rectified signal to a power, and to provide the power to the load; a switch unit connected to the input of the rectifier; and a protection unit configured to control the switch unit to open or close based on a voltage of the rectified signal. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method of receiving a wireless power, comprising:
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rectifying a signal received from a resonator; converting the rectified signal to a power; providing the power to a load; and providing or blocking the rectifying of the signal, based on a voltage of the rectified signal. - View Dependent Claims (17, 18, 19, 20)
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Specification