WIRELESS CHARGER UNITS FOR POWERING LOW-COST DISPOSABLE ELECTRONIC SYSTEMS AND RELATED METHODS

• US 20150333558A1
• Filed: 12/29/2014
• Published: 11/19/2015
• Est. Priority Date: 05/13/2014
• Status: Abandoned Application

• Current Assignee: Avery Dennison Retail Information Services LLC (Avery Dennison Corporation)
• Original Assignee: Avery Dennison Corporation
• Inventors: Forster, Ian James
• Application Number:
  US14/584,104
• Publication Number:
  US 20150333558A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 2207/20 Charging or discharging characterised by the power electronics converter
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

Wireless charger units include a transmitter unit to provide an AC magnetic field at a predetermined frequency to a physically separate receiver unit, the receiver unit receives the alternating current magnetic field, converts the alternating current magnetic field into an alternating current, and rectifies the alternating current to provide a direct current output. The receiver unit can be resonant at a multiple integer of the predetermined frequency. The electronic device may be a disposable and may include a blister pack for pills with the receiver unit monitoring the usage of the pills. The receiver unit may also include an intelligent controller. Related methods are disclosed.

Claims

1. A method for providing electrical power to an electronic device from a wireless charger unit, said method comprising the steps of:

providing an alternating current magnetic field at a predetermined frequency from a transmitter unit to a physically separate receiver unit;

receiving the alternating current magnetic field at the receiver unit;

said receiver unit being resonant at the predetermined frequency or at a multiple integer of the predetermined frequency;

converting the alternating current magnetic field into an alternating current; and

rectifying

the alternating current to provide a direct current output.

2. The method of claim 1, further comprising the step of:

supplying the

direct current output to the electronic device.

3. The method of claim 1, wherein

a coil in the receiver unit receives the alternating current magnetic field from the transmitter unit and converts the alternating current magnetic field into an alternating current.

4. The method of claim 1, wherein

a field conversion device in the receiver unit which receives the alternating current magnetic field from the transmitter unit and converts the alternating current magnetic field into an alternating current electrical field.

5. The method of claim 1, further comprising the steps of:

supplying the direct current output to an oscillator, said oscillator operating at a frequency which is an integer multiple of the frequency of the alternating current magnetic field; and

coupling the output of the oscillator to one or more conductive areas thereby creating an electrical field.

6. The method of claim 1, wherein

the electronic device is a disposable electronic device.

7. The method of claim 6, wherein

the disposable electronic device includes a blister pack for pills and the receiver unit monitors the usage of the pills.

8. The method of claim 1, wherein

the receiver unit includes an intelligent controller.

9. A wireless charger unit for providing electrical power to an electronic device, said wireless charger unit comprising:

a transmitter unit to provide an alternating current magnetic field at a predetermined

frequency from the transmitter unit to a physically separate receiver unit;

the receiver unit

receives the alternating current magnetic field;

said receiver unit is resonant at the predetermined frequency or at a multiple integer of the predetermined frequency;

the receiver unit converts the alternating current magnetic field into an alternating current; and

the receiver unit rectifies the alternating current to provide a direct current output.

10. The wireless charger unit of claim 9, wherein

the direct current output of the receiver unit is supplied to the electronic device.

11. The wireless charger unit of claim 9, further comprising:

a coil in the receiver unit to receive the alternating current magnetic field from the transmitter unit and to convert the alternating current magnetic field into an alternating current.

12. The wireless charger unit of claim 9, further comprising:

a field conversion device in the receiver unit which receives the alternating current magnetic field from the transmitter unit and converts the alternating current magnetic field into an alternating current electrical field.

13. The wireless charger unit of claim 9, further comprising:

an oscillator, the oscillator coupled to the direct current output, said oscillator operating at a frequency which is an integer multiple of the frequency of the alternating current magnetic field; and

one or more conductive areas coupled to an output of the oscillator thereby creating an electrical field.

14. The wireless charger unit of claim 9, wherein

the electronic device is a disposable electronic device.

15. The wireless charger unit of claim 14, wherein

the disposable electronic device includes a blister pack for pills and the receiver unit monitors the usage of the pills.

16. The wireless charger unit of claim 9, wherein

the receiver unit includes an intelligent controller.