WIRELESS CHARGING APPARATUS
A wireless charging apparatus comprises a power interface for receiving a charging voltage from an external power source capable of providing varying voltages; a control interface for communicating with the external power source; a charging element for wirelessly charging a remote device; and a controller for controlling transmitted power provided by the charging element. The controller is configured to request a charging voltage via the control interface from the external power source; and control the power level transmitted by the charging element by controlling the charging voltage requested from the external power source.
1 . A wireless charging apparatus comprising:
a power interface for receiving a charging voltage from an external power source capable of providing varying voltages via a wired connection;
a control interface for communicating with the external power source;
a charging element for wirelessly charging a remote device;
a controller for controlling transmitted power provided by the charging element;
wherein the controller is configured to:
request a charging voltage via the control interface from the external power source; and
control the power level transmitted by the charging element by controlling the charging voltage requested from the external power source.
2 . A wireless charging apparatus according to claim 1 , comprising a port providing the power interface and the control interface.
3 . A wireless charging apparatus according to claim 2 , wherein the port is a universal serial bus type C connector port.
4 . A wireless charging apparatus according to claim 3 , wherein the controller is configured to request the charging voltage from the external power source according to power delivery specifications.
5 . A wireless charging apparatus according to claim 1 , wherein the controller is configured to:
receive a signal from the remote device to increase or decrease power provided by the charging element; and
request a new charging voltage via the control interface from the external power source.
6 . A wireless charging apparatus according to claim 1 , wherein the controller is configured to:
control pulse width of an input voltage supplied to the charging element.
7 . A wireless charging apparatus according to claim 1 , wherein the charging element comprises an induction coil or a resonance coil.
8 . A wireless charging apparatus according to claim 1 , wherein the controller is configured to request the charging voltage via the control interface from the external power source by using 50 mV steps.
9 . A wireless charging apparatus comprising:
a universal serial bus type C connector port for receiving a charging voltage from an external power source capable of providing varying voltages via a wired connection and for providing a control interface for communicating with the external power source;
a charging element for wirelessly charging a remote device;
a controller for controlling transmitted power provided by the charging element;
wherein the controller is configured to:
request a charging voltage via the universal serial bus type C connector port from the external power source; and
control the power level transmitted by the charging element by controlling the charging voltage requested from the external power source.
10 . A wireless charging apparatus according to claim 9 , wherein the controller is configured to:
receive a signal from the remote device to increase or decrease power provided by the charging element; and
request a new charging voltage via the control interface from the external power source.
11 . A wireless charging apparatus according to claim 9 , wherein the controller is configured to:
control pulse width of an input voltage supplied to the charging element.
12 . A wireless charging apparatus according to claim 9 , wherein the controller is configured to request the charging voltage from the external power source according to power delivery specifications.
13 . A wireless charging apparatus according to claim 9 , wherein the charging element comprises an induction coil or a resonance coil.
14 . A wireless charging apparatus according to claim 9 , wherein the controller is configured to request the charging voltage via the universal serial bus type C port from the external power source by using 50 mV steps.
15 . A wireless charging apparatus comprising:
a universal serial bus cable comprising a type C connector for connecting the wireless charging apparatus to an external power source capable of providing varying voltage via a wired connection;
a charging element for wirelessly charging a remote device;
a controller for controlling transmitted power provided by the charging element;
wherein the controller is configured to:
request a charging voltage via the universal serial bus type C cable from the external power source; and
control the power level transmitted by the charging element by controlling the charging voltage requested from the external power source.
16 . A wireless charging apparatus according to claim 15 , wherein the controller is configured to:
receive a signal from the remote device to increase or decrease power provided by the charging element;
request a new charging voltage via the control interface from the external power source.
17 . A wireless charging apparatus according to claim 15 , wherein the controller is configured to:
control pulse width of an input voltage supplied to the charging element.
18 . A wireless charging apparatus according to claim 15 , wherein the controller is configured to request the charging voltage from the external power source according to power delivery specifications.
19 . A wireless charging apparatus according to claim 15 , wherein the charging element comprises an induction coil or a resonance coil.
20 . A wireless charging apparatus according to claim 15 , wherein the controller is configured to request the charging voltage via the universal serial bus type C cable from the external power source by using 50 mV steps.