Integrated electronics for perpetual energy harvesting

• US 9,806,527 B1
• Filed: 06/24/2016
• Issued: 10/31/2017
• Est. Priority Date: 06/01/2011
• Status: Active Grant

• Current Assignee: Banpil Photonics, Inc.
• Original Assignee: Banpil Photonics, Inc.
• Inventors: Olah, Robert, Dutta, Achyut Kumar
• Primary Examiner(s): Deberadinis, Robert
• Application Number:
  US15/192,831
• Time in Patent Office: 494 Days
• Field of Search: 307 43, 307 45, 307 82, 307 18
• CPC Class Codes: G05F 1/56 using semiconductor devices in series with the load as final control devices G05F1/461 takes precedence
• CPC Class Codes: H02J 1/102 being switching converters H02J1/108, H02J1/12 take precedence
• CPC Class Codes: H02J 1/106 for load balancing, symmetrisation, or sharing
• CPC Class Codes: H02J 1/12 Parallel operation of dc generators with converters, e.g. with mercury-arc rectifier
• CPC Class Codes: H02J 2207/40 adapted for charging from various sources, e.g. AC, DC or multivoltage
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/0068 Battery or charger load switching, e.g. concurrent charging and load supply H02J7/0013 takes precedence
• CPC Class Codes: H02J 7/35 with light sensitive cells
• CPC Class Codes: H02M 3/07 using capacitors charged and discharged alternately by semiconductor devices with control electrode , e.g. charge pumps
• CPC Class Codes: Y02E 10/56 Power conversion systems, e.g. maximum power point trackers

Abstract

An apparatus for perpetually harvesting ambient near ultraviolet to far infrared radiation to provide continual power regardless of the environment, incorporating a system for the harvesting electronics governing power management, storage control, and output regulation. The harvesting electronics address issues of efficiently matching the voltage and current characteristics of the different harvested energy levels, low power consumption, and matching the power output demand. The device seeks to harvest the largely overlooked blackbody radiation through use of a thermal harvester, providing a continuous source of power, coupled with a solar harvester to provide increased power output.

Claims

1. A harvesting system comprising:

at least one energy harvester;

at least one energy storage device, and;

a harvesting electronics system comprising,

at least one energy harvester interface,

wherein the at least one energy harvester interface connects to at least one energy harvester;

at least one energy storage interface,

wherein the at least one energy storage interface in connected to the at least one energy storage devices;

at least one output load interface;

a regulating circuit wherein the regulating circuit is electrically connected to the at least one energy storage interface and the at least one load interface, and;

a power management element, wherein the power management element is electrically connected to the at least one energy storage interface, wherein the power management element configured to receive a signal corresponding to a level of energy in the energy storage device, and wherein the power management element disconnects the at least one energy storage device after fully charged and directs all the harvested energy to the regulating circuit;

wherein the harvesting electronics system is embodied within a module.

2. The harvesting system in claim 1, wherein said at least one energy storage device comprises one or more batteries wherein said one or more batteries are selected from the group consisting of thin film lithium-ion, lithium-ion polymer, polymer, semiconductor, flexible, rigid, lithium, lithium air, nickel-cadmium, and nickel metal-hydride batteries.

3. The harvesting system in claim 1, wherein the at least one energy harvester comprises at least one solar harvester, wherein said at least one solar harvester is selected from the group consisting of traditional crystallized silicon solar cells, thin film solar cells, multi-layered solar cells, dye sensitized solar cells, and organic polymer solar cells.

4. The harvesting system in claim 1, wherein the at least one energy harvester comprises at least one thermal harvester, wherein said the at least one thermal harvester is selected from a group of materials consisting of HgCdTe, HgZnTe, InSb, InAs, GaSb, GaAs, InP, PbTe, and polymers.

5. The harvesting system in claim 1, wherein the at least one energy harvester interface further comprises a zener diode.

6. The harvesting system in claim 1, is embodied on one integrated module.

7. The harvesting electronics system in claim 1, is embodied into one integrated circuit.

8. A harvesting system comprising:

at least one energy harvester;

at least one energy storage device, and;

a harvesting electronics system comprising,

at least one energy harvester interface,

wherein the at least one energy harvester interface connects to at least one energy harvester;

at least one energy storage interface,

wherein the at least one energy storage interface in connected to at least one energy storage devices;

at least one output load interface;

a regulating circuit, wherein the regulating circuit is electrically connected to the at least one energy storage interface and the at least one load interface;

a power management element, wherein the power management element is electrically connected to the at least one energy storage interface, wherein the power management element configured to receive a signal corresponding to a level of energy in the energy storage device, and;

at least one bandgap reference electrically connected to the at least one energy harvester.

9. The harvesting system in claim 8, wherein the at least one energy harvester comprises a at least one solar harvester, or at least one thermal harvester or a combination of both.

10. The harvesting system in claim 9, wherein the said at least one thermal harvester generates electrical energy from blackbody radiation.

11. The harvesting system in claim 8, wherein the at least one energy harvester interface further comprises a Maximum Power Point Tracking (MPPT) element electrically connected to the at least one energy harvester, wherein the MPPT element receives an energy from the at least one energy harvester.

12. The harvesting system in claim 8, wherein said at least one energy storage device comprises one or more batteries wherein said one or more batteries are selected from the group consisting of thin film lithium-ion, lithium-ion polymer, polymer, semiconductor, flexible, rigid, lithium, lithium air, nickel-cadmium, and nickel metal-hydride batteries.

13. The harvesting system in claim 8, is embodied on one integrated module.

14. A harvesting system comprising:

at least one energy harvester;

at least one energy storage device, wherein the at least one energy storage device comprises of at least one battery and;

a harvesting electronics system comprising,

at least one energy harvester interface;

wherein the at least one energy harvester interface connects to at least one energy harvester;

at least one energy storage interface;

wherein the at least one energy storage interface in connected to at least one energy storage devices;

at least one output load interface;

a regulating circuit, wherein the regulating circuit is electrically connected to the at least one energy storage interface and the at least one load interface;

a power management element, wherein the power management element is electrically connected to the at least one energy storage interface, wherein the power management element configured to receive a signal corresponding to a level of energy in the energy storage device, and wherein the power management element disconnects the at least one energy storage device after fully charged and directs all the harvested energy to the regulating circuit;

at least one DC-DC converter, or at least one DC-AC converter,

wherein the harvesting electronics system is embodied within a module.

15. The harvesting system in claim 14, wherein said at least one energy storage device comprises one or more batteries wherein said one or more batteries are selected from the group consisting of thin film lithium-ion, lithium-ion polymer, polymer, semiconductor, flexible, rigid, lithium, lithium air, nickel-cadmium, and nickel metal-hydride batteries.

16. The harvesting system in claim 14, wherein the at least one energy harvester comprises at least one solar harvester, wherein said at least one solar harvester is selected from the group consisting of traditional crystallized silicon solar cells, thin film solar cells, multi-layered solar cells, dye sensitized solar cells, and organic polymer solar cells.

17. The harvesting system in claim 14, wherein the at least one energy harvester comprises at least one thermal harvester, wherein said at least one thermal harvester is comprised of material selected from the group consisting of HgCdTe, HgZnTe, InSb, InAs, GaSb, GaAs, InP, PbTe, and polymers.

18. The harvesting system in claim 14, wherein the at least one energy harvester interface further comprises a Maximum Power Point Tracking (MPPT) element electrically connected to the at least one energy harvester, wherein the MPPT element receives an energy from the at least one energy harvester.

19. The harvesting system in claim 14, wherein the at least one energy harvester is integrated into the same circuit as the harvesting electronics system.

20. The harvesting system in claim 19, wherein the at least one energy storage device is integrated into the harvesting electronics system.