AU2020101896A4 - Monolithically integrated thin-film solar cell charger for electronic gadgets - Google Patents

Monolithically integrated thin-film solar cell charger for electronic gadgets Download PDF

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Publication number
AU2020101896A4
AU2020101896A4 AU2020101896A AU2020101896A AU2020101896A4 AU 2020101896 A4 AU2020101896 A4 AU 2020101896A4 AU 2020101896 A AU2020101896 A AU 2020101896A AU 2020101896 A AU2020101896 A AU 2020101896A AU 2020101896 A4 AU2020101896 A4 AU 2020101896A4
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Australia
Prior art keywords
charging
day
solar
micro controller
storage device
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AU2020101896A
Inventor
Umamaheswari Ramalingam
Visalakshi Selvaraj
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Ramalingam Umamaheswari Dr
Selvaraj Visalakshi Dr
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Ramalingam Umamaheswari Dr
Selvaraj Visalakshi Dr
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Priority to AU2020101896A priority Critical patent/AU2020101896A4/en
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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0086—Casings, cabinets or drawers for electric apparatus portable, e.g. battery operated apparatus
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S30/00—Structural details of PV modules other than those related to light conversion
    • H02S30/20—Collapsible or foldable PV modules
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/38—Energy storage means, e.g. batteries, structurally associated with PV modules
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • H02J2300/26—The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/1557—Single ended primary inductor converters [SEPIC]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1582—Buck-boost converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Abstract

OF THE INVENTION The people witness advancements in the field of science and technology every day. This is due their dependency on the electronic gadgets to do their day-to-day works. This increases the need of electricity and also improved efficiency. Though portable devices are taking sky rocketing development and upgrades every day the major issues are going unnoticed by others. one of such issue is the consumption of electricity which is produced from the non-renewable resources leading to depletion of natural resources and on the other side loss of time that is caused due to various factors like charging these devices, maintaining them and spent most of the time in making it work efficiently rather than use it. These problems can be tackled with a single solution of using renewable energy to produce electricity and utilize it to power day to day electronics gadgets. The light weight portable electronics powered by solar energy with fast charging capabilities can be a great boon to the people who rely on technology to do almost everything. Thus by integrating a device which is capable of operating as both a charging device and also a power storage device based on solar energy makes sure the people do not need an electrical socket to charge their devices and also capable of charging in long run like trekking, hiking and many more as it can be easily carried in our pockets anywhere. Thus a micro controller programmed with MPPT algorithm and also used to control the bidirectional SEPIC converter, super capacitor and rechargeable battery and switches to efficiently control the fast charging, discharging rates and its storage so that it can be operated irrespective of the lighting conditions which is an feature that is not present in present technologies. DRAWINGS Supercapacitor Bidirectional dc-dc _,Voltage Solar sheets DC link SEPIC converter Regulator MPPT regulation , Mobile phones Micro controller Rechargeable battery Figure 1. Block Diagram of working module SOLAR SOLAR BIDECA SUPER SHEETS CHARGE DCEPICR CAPACITOR REGULATORCOVRE SWITCH MICROCONTROLLER BATTERYLOAD Figure 2. Block Diagram of the Working Module

Description

DRAWINGS
Supercapacitor Bidirectional dc-dc _,Voltage Solar sheets DC link SEPIC converter Regulator
MPPT regulation , Mobile phones
Micro controller Rechargeable battery
Figure 1. Block Diagram of working module
SOLAR SOLAR BIDECA SUPER SHEETS CHARGE DCEPICR CAPACITOR REGULATORCOVRE SWITCH MICROCONTROLLER BATTERYLOAD
Figure 2. Block Diagram of the Working Module
Editorial Note 2020101896 There is only four pages of the description
DESCRIPTION In Fig.2, the solar sheets are exposed to sunlight and the output power is tracked to its maximum by using MPPT method by programming Perturb and observe (P&O) algorithm. It is programmed in a micro controller. This algorithm tracks the maximum voltage obtained in each cycle and maintains the maximum power throughout the process. The output from the solar sheets after MPPT regulation is sent to a bidirectional de-dc SEPIC converter which performs both the operation of buck boost conversion and also provide the necessary power needed by the other components used in this device. The output from the SEPIC converter is given to the super capacitor. It is capable of fast charging and slow discharging thus reducing the time consumed in charging the electronic gadgets. The super capacitor is connected to the rechargeable battery through a switch for safety purposes. A switch is connected between the super capacitor and the rechargeable battery so that the power supply is interrupted when the battery is fully charged so that it is not overloaded. So based on the availability of solar energy the micro controller controls the switch so that both the super capacitor and the rechargeable battery is used to charge the gadgets. A battery level indicator is connected across the battery to indicate the amount of charge present in the rechargeable battery as indicated in the drawing.
FIELD OF THE INVENTION
The present invention relates to the device capable of both charging and its storage. It is based on solar energy and capable of working in both broad light and also night conditions. It is capable of fast charging and storing reducing the time duration required to charge the electronic gadgets.
OBJECTIVE OF THE PROPOSED SYSTEM
The Solar energy based electronic gadgets provides a great way of tackling the issues put forward in the form of both electricity consumption and depletion of natural resources for it. When this is implemented by integrating fast charging and storage capable of working irrespective of lighting and climatic conditions, it greatly reduces the time lost by an individual in charging their gadgets every day without searching for an electrical socket to charge them.
SUMMARY OF THE INVENTION
The Prevailing technologies are dominating due to its portability and charging period. With the proposed system an even better technology that is capable of operating far better than the present charging devices in terms of portability, charge storage capacity, environment friendly, short charging period and accessibility is designed.
In fig.1, the flexible and roll able solar sheets are used which has less shadow losses and high portability with reduced consumption of space. The Maximum Power Point Tracking (MPPT) is a feature which is used to obtain high output power in large solar applications. So by using MPPT by Perturb & Observe (P & 0) algorithm programmed in a micro controller maximum power is obtained throughout the entire period it is under use. A super capacitor and a Rechargeable battery is connected to it is used for fast charging and storing. A bidirectional DC-DC SEPIC Converter is used to perform both the operation of boost and buck boost thus effectively performing both the functions of providing power to the other components in the device and also perform the conversion. A switch is used which is controlled by the micro controller so that the super capacitor directly charges rechargeable battery when the sheets are exposed to sun light and the rechargeable battery does the charging in the absence of sun light as an alternative making it operable anytime anywhere irrespective of the lighting conditions. Thus it is capable of providing high output power whenever the sheets under exposure of sun light can be stored and used whenever necessary. This device is so small and light weight that it can be carried in pockets anywhere. The charger serves the purpose of charging and the power banks perform that of storage. When integrated into a single module capable of both the functions at the same size this technology is greatly helpful to the individuals who depend on electronic gadgets to perform their jobs.
4.BACK GROUND STUDY
Ultra-fast ultra-capacitor pack--(2006), US20080106239AL. This is based on the patent that describes the charging mechanism using ultra capacitors or super capacitors. Here the batteries are connected in various configurations and are charged using low are varied voltages without causing any cell damage.
Storage case with power and charging system - (2006), US20060012331Al. This is based on the mechanism with both charging and storing facility. A case for retaining one or more electronic devices includes electronic circuitry integral with the case. The circuitry is connectable to a power source and is connectable to at least one of the one or more electronic devices in order to provide electric power thereto. The power source may be a photovoltaic module and the module may be attached to or integral with the case. If a photovoltaic module is used it may be expandable to provide more surface area than the area of any side of the case. The case may also include, among other things, an integral power source, such as a DC battery, that could be connected to one or more electronic devices.
Photovoltaic device -(2006), US20060028166A, A portable solar charger, comprising a flexible solar panel rollable on a cylindrical stiff core. The device comprises a flexible protection fully encircling the solar panel when in the rolled position. The device provides superior portability and ruggedness for indoor and outdoor applications.
Solar powered battery charger with voltage regulation circuit apparatus and method -(2009), US20060267543A1, The present invention relates to a solar powered battery charger with voltage regulation circuit and the method for recharging a car battery. The charger comprises an input port for receiving electrical power from a solar panel; an output port for providing electrical power to a battery; and a power regulation circuit electrically coupled to the input power. The power regulation circuit is electrically coupled to the output port and for monitoring a voltage thereon, having a first state in which electrical power is provided to the output port and a second state in which electrical power is not provided to the output port. The power regulation circuit remains in a first state when the voltage at the output port is below a threshold voltage and for other than remaining in the first state when the voltage at the output port is above the threshold voltage.
Solar chargeable battery for portable devices -(2009), US2010020757IA1, A solar chargeable battery comprises a built-in photovoltaic array and a programmable battery charging circuit. The photovoltaic array provides a variable power source in response to light. The battery charging circuit receives the variable power source and operates in different modes to charge the battery over a range oflighting conditions. For example, the battery charging circuit charges the battery to a substantially fixed regulated voltage level in a first mode when a voltage level of the variable power source is above a predefined threshold. The battery charging circuit charges the battery to an adjustable regulated voltage level in a second mode when the voltage level of the variable power source is below the predefined threshold.
5. DESCRIPTION
In Fig.2, the solar sheets are exposed to sunlight and the output power is tracked to its maximum by using MPPT method by programming Perturb and observe (P&O) algorithm. It is programmed in a micro controller. This algorithm tracks the maximum voltage obtained in each cycle and maintains the maximum power throughout the process. The output from the solar sheets after MPPT regulation is sent to a bidirectional dc-dc SEPIC converter which performs both the operation of buck boost conversion and also provide the necessary power needed by the other components used in this device. The output from the SEPIC converter is given to the super capacitor. It is capable of fast charging and slow discharging thus reducing the time consumed in charging the electronic gadgets. The super capacitor is connected to the rechargeable battery through a switch for safety purposes. A switch is connected between the super capacitor and the rechargeable battery so that the power supply is interrupted when the battery is fully charged so that it is not overloaded. So based on the availability of solar energy the micro controller controls the switch so that both the super capacitor and the rechargeable battery is used to charge the gadgets. A battery level indicator is connected across the battery to indicate the amount of charge present in the rechargeable battery as indicated in the drawing.

Claims (1)

  1. Editorial Note 2020101896 There is only one page of the claim
    CLAIMS OF THE INVENTION
    Claim 1: We claim for, An Integrated portable solar charging and energy storage device with micro controller programmed MPPT algorithm, super capacitors, rechargeable battery, voltage regulators and switches
    Claim 2: We claim for, An Integrated portable solar charging and energy storage device according to claim 1, wherein the solar sheets are pulled out and exposed to sunlight. After exposure generation of electrical energy takes place which is sent to a bidirectional dc-dc SEPIC converter which flows to the super capacitor and the rechargeable battery where the entire system is controlled and monitored by a micro controller
    Claim 3: We claim for, An Integrated portable solar charging and energy storage device according to claim 2, wherein all the operations and components are controlled by using a micro controller.
    Claim 4: We claim for, An Integrated portable solar charging and energy storage device according to claim 2, which uses a bidirectional dc-dc SEPIC converter for conversion and additional power supply applications to operate this device
    Claim 5: We claim for, An Integrated portable solar charging and energy storage device according to claim 1, where the device is attached to any rechargeable batteries or electronic gadgets like mobile phones, tablets and other hand held devices for charging without using electrical sockets to power up faster.
AU2020101896A 2020-08-19 2020-08-19 Monolithically integrated thin-film solar cell charger for electronic gadgets Ceased AU2020101896A4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2020101896A AU2020101896A4 (en) 2020-08-19 2020-08-19 Monolithically integrated thin-film solar cell charger for electronic gadgets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2020101896A AU2020101896A4 (en) 2020-08-19 2020-08-19 Monolithically integrated thin-film solar cell charger for electronic gadgets

Publications (1)

Publication Number Publication Date
AU2020101896A4 true AU2020101896A4 (en) 2021-02-04

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