WIRELESS POWER OUTLET AND METHOD OF TRANSFERRING POWER THEREBY

• US 20160336807A1
• Filed: 01/19/2015
• Published: 11/17/2016
• Est. Priority Date: 01/19/2014
• Status: Abandoned Application

• Current Assignee: Powermat Technologies, Ltd.
• Original Assignee: Powermat Technologies, Ltd.
• Inventors: MACH, ELIESER, MOSHKOVICH, OZ, GLUZMAN, ILYA, GREENWALD, OOLA, RAVEH, GUY
• Application Number:
  US15/112,563
• Publication Number:
  US 20160336807A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/60 responsive to the presence of foreign objects, e.g. detection of living beings
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices

Abstract

A method of transferring power inductively is provided, the method comprising providing a wireless power outlet comprising a primary inductive coil connected to a power source via a driver, providing a secondary unit configured and disposed to form an inductive couple with the wireless power outlet for power transfer, emitting, by the wireless power outlet, one or more digital pings at a predetermined power level, determining if at least one or more of the digital pings engaged the secondary unit, repeating, if engagement of a secondary unit was not determined to have occurred, the emitting and determining until a digital ping engages a secondary unit, wherein the power of the digital pings is increased relative to the previous emitting, and transferring power from the wireless power outlet to the secondary unit according to a wireless power transfer standard in accordance with the power of the engaged digital ping.

Claims

1-13. -13. (canceled)

14. A method of transferring power inductively, the method comprising:

providing a wireless power outlet comprising a primary inductive coil connected to a power source via a driver;

providing a secondary unit configured and disposed to form an inductive couple with said wireless power outlet for power transfer;

emitting, by said wireless power outlet, one or more pulses;

measuring one or more electrical parameters of the primary inductive coil, resulting from said pulses, compared to time;

calculating, based on the measuring, an impedance associated with the secondary unit;

matching, by the wireless power outlet, the calculated impedance to known values of impedances of secondary units, thereby identifying the secondary unit; and

transferring power from the wireless power outlet to the secondary unit, in accordance with a standard associated with the identified secondary unit.

15. The method according to claim 14, wherein said pulses are low powered.

16. The method according to claim 14, wherein said wireless power outlet is preloaded with data pertaining to specifications of secondary units according to two or more standards.

17. The method according to claim 16, wherein said standards comprise one or both of a first standard and a second standard.

18. The method according to claim 14, wherein said wireless power outlet is configured to request and obtain data pertaining to specifications of the secondary unit according to two or more standards.

19. The method according to claim 14, further comprising, prior to the emitting, detecting, by said wireless power outlet, a possible presence of the secondary unit.

20. The method according to claim 19, wherein the detecting comprises emitting, by the wireless power outlet, an analog ping.

21. The method according to claim 14, wherein said electrical parameters comprise one or more selected from the group consisting of amplitude of voltage, amplitude of current, and decay coefficient.

22-34. -34. (canceled)

35. A wireless power outlet comprising a primary inductive coil connected to a power source via a driver, and being configured to transfer power inductively to a secondary unit by:

emitting one or more pulses;

measuring one or more electrical parameters of the primary inductive coil, resulting from said pulses, compared to time;

calculating, based on the measuring, an impedance associated with the secondary unit;

matching the calculated impedance to known values of impedances of secondary units, thereby identifying the secondary unit; and

transferring power to the secondary unit, in accordance with a standard associated with the identified secondary unit.

36. The wireless power outlet according to claim 35, wherein said pulse is low powered.

37. The wireless power outlet according to claim 35, being preloaded with data pertaining to specifications of secondary units according to two or more standards.

38. The wireless power outlet according to claim 37, wherein said standards comprise one or both of a first standard and a second standard.

39. The wireless power outlet according to claim 35, being configured to request and obtain data pertaining to specifications of secondary unit according to two or more standards.

40. The wireless power outlet according to claim 35, being configured to detect, prior to the emitting, a possible presence of the secondary unit.

41. The wireless power outlet according to claim 40, wherein the detecting comprises emitting an analog ping.

42. The wireless power outlet according to claim 35, wherein said electrical parameters comprise one or more selected from the group consisting of amplitude of voltage and amplitude of current.