Switching time control multiplexer system

• US 8,183,818 B2
• Filed: 03/06/2009
• Issued: 05/22/2012
• Est. Priority Date: 03/06/2009
• Status: Active Grant

• Current Assignee: Hesham A. Elhalis
• Original Assignee: Hesham A. Elhalis
• Inventors: Elhalis, Hesham A.
• Primary Examiner(s): Assouad, Patrick
• Assistant Examiner(s): Chung, Steve T
• Application Number:
  US12/399,692
• Publication Number:
  US 20100225267A1
• Time in Patent Office: 1,173 Days
• Field of Search: 320/101, 320/126, 320/133, 320/134, 320/138, 320/155, 320/162, 320/117, 320/121, 136/291, 323/906
• US Class Current: 320/101
• CPC Class Codes: H01M 10/441 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H01M 10/465 with solar battery as charging system
• CPC Class Codes: H02J 7/0019 using switched or multiplexed charge circuits
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y10S 136/291 Applications
• CPC Class Codes: Y10S 323/906 Solar cell systems

Abstract

A system for energizing an energy storage device includes an electric power source, an energy system in communication with the electric power source, and a switching time control multiplexer. The energy storage system includes at least two parallel energy storage devices. The switching time control multiplexer is configured to supply total charging current from the electric power source to the energy storage system such that each storage device is charged in an alternating manner with the total charging current being less than a total charging current required for parallel charging.

Claims

1. A system for energizing an energy storage device, the system comprising:

an electric power source;

an energy storage system in communication with the electric power source, the energy storage system including a first energy storage device and a second energy storage device, the first and second energy storage devices being in parallel; and

a switching time control multiplexer configured to supply a total charging current from the electric power source to the energy storage system in which each storage device is charged in an alternating manner with a predetermined frequency, the total charging current being less than a total parallel charging current required for parallel charging, the predetermined frequency defining a first time during which the first energy storage device is charged and a second time during which the second storage device is charged.

2. The system of claim 1 wherein the switching time control multiplexer is configured to control the time duration of charging current and voltage to the energy storage device.

3. The system of claim 1 wherein the switching time control multiplexer is configured to supply charging current to the energy storage device that is equal to or greater than an optimized charging current for the energy storage device in a parallel charging system.

4. The system of claim 1 wherein the energy storage system is expandable.

5. The system of claim 1 wherein the energy storage device is a rechargeable battery, capacitor, super capacitor, superconducting magnetic energy storage device, or a flywheel.

6. The system of claim 1 wherein the switching time control multiplexer is configured to include a non-charging state for a predetermined time between charging the energy storage devices.

7. The system of claim 1 wherein the switching time control multiplexer is configured to have associated diodes to independently charge and discharge each energy storage device.

8. The system of claim 1 wherein the switching time control multiplexer is configured to cease supplying charging current and voltage for a predetermined time when the energy storage device reaches a predetermined amount of energy.

9. The system of claim 1 wherein each energy storage device has an associated diode to independently discharge each energy device and to optimize its performance and lifetime.

10. The system of claim 1 wherein the electric power source is a photovoltaic (PV)/solar cell, AC/DC power supply, charger, rectifier charging source, or a wind electric generator.

11. A system for energizing an energy storage device, the system comprising:

an electric power source;

an electric energy storage system in communication with the electric power source, the energy storage system including a first battery and a second battery; and

a switching time control multiplexer configured to supply total charging current from the electric power source to the electric energy storage system in which each battery is charged in an alternating manner with a predetermined frequency, the total charging current being less than a total charging current required for parallel charging, the predetermined frequency defining a first time during which the first battery is charged and a second time during which the second battery is charged.

12. The system of claim 11 wherein the switching time control multiplexer is configured to supply charging current to the energy storage device that is equal to or greater than an optimized charging current for the battery in a parallel charging system.

13. The system of claim 11 wherein the energy storage system is expandable.

14. The system of claim 11 wherein the switching time control multiplexer is configured to include a non-charging state for a predetermined time between charging the batteries.

15. The system of claim 11 wherein the switching time control multiplexer is configured to independently charge and discharge each battery.

16. The system of claim 11 wherein the switching time control multiplexer is configured to cease supplying charging current and voltage for a predetermined time when the battery reaches a predetermined amount of energy.

17. The system of claim 11 wherein each battery has an associated diode to independently discharge each battery and to optimize its performance and lifetime.

18. The system of claim 11 wherein the electric power source is a photovoltaic/solar cell, AC/DC power supply, a charger, rectifier charging source, or a wind electric generator.

19. The system of claim 11 wherein the switching time control multiplexer is configured to prevent the batteries from deep discharge.