Systems and methods for limiting voltage in wireless power receivers
First Claim
1. An apparatus to receive power wirelessly from a transmitter, comprising:
- a power transfer component configured to receive power wirelessly from the transmitter;
a circuit coupled to the power transfer component, the circuit configured to reduce a received voltage when activated;
a controller configured to provide a control signal to activate the circuit when the received voltage reaches a first threshold value and to deactivate the circuit when the received voltage reaches a second threshold value, wherein the control signal further includes a pulse that is inverted if the received voltage reaches the first threshold value and that is non-inverted if the received voltage falls to the second threshold value; and
an antenna configured to transmit the pulse to the transmitter, wherein the pulse indicates to the transmitter that the received voltage reached the first threshold value.
1 Assignment
0 Petitions
Accused Products
Abstract
This disclosure provides systems, methods, and apparatus for the limiting of voltage in wireless power receivers. In one aspect, an apparatus includes a power transfer component configured to receive power wirelessly from a transmitter. The apparatus further includes a circuit coupled to the power transfer component and configured to reduce a received voltage when activated. The apparatus further includes a controller configured to activate the circuit when the received voltage reaches a first threshold value and configured to deactivate the circuit when the received voltage reaches a second threshold value. The apparatus further includes an antenna configured to generate a signal to the transmitter that signals to the transmitter that the received voltage reached the first threshold value.
-
Citations
46 Claims
-
1. An apparatus to receive power wirelessly from a transmitter, comprising:
-
a power transfer component configured to receive power wirelessly from the transmitter; a circuit coupled to the power transfer component, the circuit configured to reduce a received voltage when activated; a controller configured to provide a control signal to activate the circuit when the received voltage reaches a first threshold value and to deactivate the circuit when the received voltage reaches a second threshold value, wherein the control signal further includes a pulse that is inverted if the received voltage reaches the first threshold value and that is non-inverted if the received voltage falls to the second threshold value; and an antenna configured to transmit the pulse to the transmitter, wherein the pulse indicates to the transmitter that the received voltage reached the first threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method for limiting voltage in a wireless power receiver, the method comprising:
-
receiving power wirelessly from a transmitter; measuring a value of a received voltage; activating a circuit configured to reduce the received voltage via a control signal when the received voltage reaches a first threshold value and deactivating the circuit via the control signal when the received voltage reaches a second threshold value; and generating a pulse within the control signal, the pulse received by the transmitter when the circuit is activated that signals to the transmitter that the received voltage reached the first threshold value, wherein the pulse is inverted if the received voltage reaches the first threshold value and is non-inverted if the received voltage falls to the second threshold value. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. An apparatus configured to limit voltage in a wireless power receiver, the apparatus comprising:
-
means for receiving power wirelessly from a transmitter; means for measuring a value of a received voltage; means for activating a circuit configured to reduce the received voltage via a control signal when the received voltage reaches a first threshold value and deactivating the circuit via the control signal when the received voltage reaches a second threshold; means for generating a pulse within the control signal, the pulse received by the transmitter when the circuit is activated that signals to the transmitter that the received voltage reached the first threshold value, wherein the pulse is inverted if the received voltage reaches the first threshold value and is non-inverted if the received voltage falls to the second threshold value. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
-
-
35. A non-transitory computer-readable medium comprising code that, when executed, causes an apparatus to:
-
receive power wirelessly from a transmitter; measure a value of a received voltage; activate a circuit configured to reduce the received voltage via a control signal when the received voltage reaches a first threshold value and deactivating the circuit via the control signal when the received voltage reaches a second threshold value; and generate a pulse within the control signal, the pulse received by the transmitter when the circuit is activated that signals to the transmitter that the received voltage reached the first threshold value, wherein the pulse is inverted if the received voltage reaches the first threshold value and is non-inverted if the received voltage falls to the second threshold value. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
-
-
46. A method for limiting voltage in a wireless power receiver, the method comprising:
-
receiving power wirelessly from a transmitter; measuring a value of a received voltage; activating a circuit configured to reduce the received voltage via a control signal when the received voltage reaches a first threshold value; generating a pulse within the control signal, the pulse received by the transmitter when the circuit is activated that signals to the transmitter that the received voltage reached the first threshold value, wherein the pulse is inverted if the received voltage reaches the first threshold value and is non-inverted if the received voltage reaches a second threshold value; and deactivating the circuit after a fixed time.
-
Specification