Charging apparatus with locator

1. A charging device comprising:

a wireless base;

a first motor positioned on the wireless base; and

a case attached to the wireless base, the case housing a wireless charging coil, a controller integrated circuit (IC), and a power stage controller,

wherein the controller IC is connected to the wireless charging coil and configured to:

determine a frequency characteristic of the wireless charging coil; and

control the power stage controller to supply a predetermined current to the wireless charging coil based on the frequency characteristic of the coil and an input power value,

wherein the first motor positioned on the wireless base is configured to move the wireless base and the first motor from a first position inside the charging device to a second position inside the charging device.

2. The charging device of claim 1 , further comprising a second motor,

wherein the second motor is configured to move the wireless base and the first motor from the first position to the second position.

3. The charging device of claim 2 , wherein the second motor is attached to the wireless base.

4. The charging device of claim 2 , wherein the second motor is positioned inside the charging device but is not attached to the wireless base.

5. The charging device of claim 2 , wherein the first motor is configured to move the wireless base in a first direction and the second motor configured to move the wireless base in a second direction perpendicular to the first direction.

6. The charging device of claim 5 , wherein the first motor is attached to the wireless base and the second motor is not attached to the wireless base.

7. The charging device of claim 1 , wherein the controller IC is configured to determine the second position according to a strength of a signal transmitted from an external device.

8. The charging device of claim 7 , wherein the second position is closer to the external device than the first position.

9. The charging device of claim 1 , further comprising a universal serial bus (USB) socket for USB fast charging.

10. The charging device of claim 1 , further comprising a plurality of sliders, upon which the wireless base is configured to move.

11. The charging device of claim 10 , wherein a first set of the plurality of sliders are positioned in a first direction and a second set of the plurality of sliders are positioned in a second direction perpendicular to the first direction, and

wherein an end of the first set of the plurality of sliders is connected to a bearing that forms a movable joint along the second set of sliders.

12. The charging device of claim 1 , further comprising a rotor bearing positioned at a center portion of the charging device.

13. The charging device of claim 12 , further comprising a second motor attached to the rotor bearing.

14. The charging device of claim 13 , further comprising a radial arm extending from an outer edge of the charging device having one end fixed to the rotor bearing,

wherein the second motor is configured to rotate the radial arm 360 degrees about the center portion of the charging device.

15. The charging device of claim 14 , wherein the first motor is configured to move the wireless base in a radial direction along the radial arm.

16. The charging device of claim 1 , further comprising:

a spiral track extending outward from a center portion of the charging device; and

a spiral pin configured to connect the spiral track to a radial arm extending from an outer edge of the charging device to the center portion of the charging device.

17. The charging device of claim 12 , wherein the controller IC is configured to determine the second position according to a strength of a signal transmitted from an external device.

18. The charging device of claim 17 , wherein the second position is closer to the external device than the first position.

19. A charging device comprising:

a wireless base;

a first motor positioned on the wireless base; and

a case attached to the wireless base, the case housing a wireless charging coil, a controller integrated circuit (IC), and a power stage controller;

wherein the controller IC is connected to the wireless charging coil and configured to determine a frequency characteristic of the wireless charging coil, and control the power stage controller to supply a predetermined current to the wireless charging coil based on the frequency characteristic of the coil and an input power value;

a first set of sliders positioned in a horizontal direction; and

a second set of sliders positioned in a vertical direction and connected to bearings that form a movable joint along the first set of sliders,

wherein the first motor positioned on the wireless base is configured to move the wireless base and the first motor along at least one of the first set of sliders and the second set of sliders from a first position inside the charging device to a second position inside the charging device.

20. A charging device comprising:

a wireless base;

a wireless charging coil attached to the wireless base;

a controller integrated circuit (IC) connected to the wireless charging coil;

a rotor bearing positioned at a center portion of the charging device;

a radial arm extending from an outer edge of the charging device to the center portion of the charging device;

a rotate motor configured to rotate the radial arm 360 degrees about the center portion of the charging device; and

a linear motor configured to move the wireless base in a radial direction along the radial arm,

wherein the wireless base is configured to move from a first position inside the charging device to a second position inside the charging device.