Adaptable recharging and lighting station and methods of using the same

• US 10,014,683 B2
• Filed: 02/05/2016
• Issued: 07/03/2018
• Est. Priority Date: 01/23/2015
• Status: Active Grant

• Current Assignee: Elevate Technologies Corporation
• Original Assignee: Elevate Technologies Corporation
• Inventors: Ellenberger, John C.
• Primary Examiner(s): Kim, Jung
• Application Number:
  US15/017,515
• Publication Number:
  US 20160226246A1
• Time in Patent Office: 879 Days
• CPC Class Codes: F21S 6/003 for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
• CPC Class Codes: F21S 9/02 the power supply being a battery or accumulator
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H02J 7/00032 characterised by data exchange
• CPC Class Codes: H02J 7/0024 Parallel/serial switching of connection of batteries to charge or load circuit
• CPC Class Codes: H02J 7/35 with light sensitive cells
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/10 Controlling the intensity of the light
• CPC Class Codes: H05B 45/325 Pulse-width modulation [PWM]
• CPC Class Codes: H05B 45/37 Converter circuits
• CPC Class Codes: H05B 45/375 using buck topology
• CPC Class Codes: H05B 45/50 responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
• CPC Class Codes: H05B 45/56 involving measures to prevent abnormal temperature of the LEDs

Abstract

The present invention includes self-contained, rechargeable power systems for areas having unreliable electrical grids or no electrical grid at all, and methods related thereto. The system may include one or more solar panels of various sizes to provide an off-grid power generation source, battery receivers for receiving batteries of various chemistries, and a control circuitry that is operable to detect the voltage and/or current output of the batteries that are installed in the system to determine their specific battery chemistry and then adjust the charge algorithm of the batteries to optimize both the charge capacity and the cycle life of the batteries. The control circuitry may also be operable to switch configurations of the solar panels and/or the batteries to optimize performance of the system. The system may be operable to power one or more light emitters and/or external electronic devices connected through the system by a charge port.

Claims

1. A method of operating a charging system, comprising:

a. identifying a chemical class of a plurality of batteries connected to battery receivers in said system, wherein said system includes a plurality of sensors in electronic communication with said battery receivers for measuring electrical characteristics of said plurality of batteries and a microprocessor operable to analyze said electrical characteristics of said plurality of batteries to determine (1) whether said plurality of batteries are of a same chemical class and (2) a particular chemical class of said same chemical class;

b. monitoring at least one electrical characteristic of at least one power generation device in electronic communication with said charging system;

c. monitoring voltages of said plurality of batteries; and

d. altering the configuration of said plurality of batteries between series and parallel configurations based on at least one of said at least one electrical characteristic of said at least one power generation device, said voltages of said plurality of batteries, and said particular chemical class of said plurality of batteries during charging of said batteries.

2. The method of claim 1, wherein said battery receivers are electronically connected by a battery switching circuit operable to alter electronic connections between said battery receivers to configure said plurality of batteries in said parallel and series configurations.

3. The method of claim 2, wherein said plurality of sensors are electronically connected to a plurality of points in said battery switching circuit.

4. The method of claim 3, wherein said microprocessor analyzes said voltages of said plurality of batteries provided at each of said plurality of points in said battery switching circuit.

5. The method of claim 4, wherein said microprocessor continuously monitors said voltages of said plurality of batteries at said plurality of points in said battery switching circuit.

6. The method of claim 4, wherein said step of identifying said chemical class of said plurality of batteries connected to said battery receivers includes comparing voltage of said plurality of batteries in said parallel configuration with a total voltage of said batteries in said series configuration.

7. The method of claim 6, wherein said battery switching circuit includes a plurality of transistors having body diodes therein that allow current to flow through the transistors when the transistors are open.

8. The method of claim 7, wherein said step of identifying said chemical class of said plurality of batteries connected to said battery receivers further includes comparing a voltage of said plurality of batteries when all of said transistors in said battery switching circuit are open to said voltage of said plurality of batteries in said parallel configuration.

9. The method of claim 6, wherein said step of identifying said chemical class of said plurality of batteries connected to said battery receivers further includes monitoring voltages of said plurality of batteries during charging and comparing a rate of change of said voltages of said plurality of batteries to at least one battery charging profile stored in a memory accessible to said microprocessor, wherein said at least one battery charging profile includes a characteristic rate of voltage increase during charging for a particular chemical class of batteries.

10. The method of claim 6, wherein said step of identifying said chemical class of said plurality of batteries connected to said battery receivers further includes measuring a temperature at or near said battery receivers while voltage is supplied to said plurality of batteries through said battery receivers, wherein said plurality of batteries are classified as primary batteries or mixed chemistry batteries if said temperature rises above a pre-determined threshold temperature.

11. The method of claim 1, wherein said at least one electrical characteristic of said at least one power generation device includes at least one of a voltage and a current.

12. The method of claim 1, wherein said at least one power generation device includes at least one solar panel.