Description:
FORM 2

THE PATENTS ACT, 1970
(39 OF 1970)
&
THE PATENT RULES, 2003

COMPLETE SPECIFICATION

TITLE OF THE INVNETION:
MULTIPORT POWER ADAPTERS FOR CHARGING WITH INTELLIGENT POWER SHARING AND CHARGING STATUS INDICATION

APPLICANT:
Name: MOKKOMOTTO ELECTRONICS PRIVATE LIMITED
Nationality: India
Address: STPI ELITE BUILDING, FIRST FLOOR, IDCO PLOT NO-2/A REV - 570/1261 (P), MALIPADA, GOTHAPATNA, BHUBANESWAR, KHORDHA ODISHA- 751003 INDIA

The following specification particularly describes the invention and the manner in which it is to be performed:  

FIELD OF THE INVENTION
The present invention discloses USB power adapters, aiming to enhance user experience during device charging. It introduces intelligence through a USB Single-port/Multiport Power Adapter, incorporating a microcontroller unit and color-changing RGB LED for each port. The disclosure also provides users with an intuitive and efficient method of monitoring and optimizing the charging process, addressing limitations in existing adapters and promoting power conservation.

BACKGROUND OF THE INVENTION
Charging electronic devices through USB power adapters has become ubiquitous in today's technologically advanced world. The contemporary, technologically-driven landscape, the widespread use of USB power adapters for charging electronic devices has become a commonality. However, this convenience is not without its challenges. Users frequently encounter difficulties in discerning the charging status of their devices, relying on the device screen for updates, also the USB Power adapters are not intelligent to detect the connected device and allocate power on-the-fly, leading to incompatibility for fast charging standards. This lack of real-time feedback can lead to suboptimal user experiences and raises concerns about issues such as overcharging and power loss.
Some of the literature available in charging systems are discussed herein below:
US patent publication number US 11,070,076 B2, discloses a charging system designed to enhance the efficiency of battery charging. The system comprises a battery, a first rectification unit, a transformer, a synthesis unit, a sampling unit, and a modulation and control unit. The innovation lies in the synthesis of multiple pulsating waveforms to generate a second AC for charging the battery, ensuring that the peak voltage of the positive half of each cycle exceeds the valley voltage of the negative half. The sampling unit obtains a voltage sampling value from the second AC, and the modulation and control unit adjust the voltage of the first pulsating waveform accordingly. However, despite the inventive approach, the disclosed charging system does not explicitly address certain shortcomings prevalent in conventional charging technologies, such as issues related to power loss, overcharging, and the lack of real-time feedback on the charging status of the connected device. These limitations highlight areas where further advancements in charging technology could contribute to an even more efficient and user-friendly charging experience.
US Patent application publication number US 2014/0312829 A1 discloses an electronic apparatus designed to optimize battery management and user interface (UI) interaction. This apparatus comprises a battery unit responsible for supplying power to the electronic device's elements, a power charger that charges the battery when external power is input, a UI unit displaying the battery's charge state, and a power controller overseeing these functions. Notably, the power controller, upon determining that the battery meets a predefined first condition, directs the UI unit to display a fully charged status and continues charging the battery until it fulfils a preset second condition. While this invention addresses concerns related to monitoring and controlling battery charging, it does not explicitly address potential shortcomings such as power inefficiencies during prolonged charging periods, the risk of overcharging, or the absence of a real-time dynamic indication of the charging status, which could impact user experience. These considerations emphasize areas where further advancements in charging technology may be explored for a more comprehensive solution.
The state of the art depicts that when two or more devices are connected there is power sharing between the connected devices to share power among the connected devices, also the existing USB power adapters also lack a visual and intuitive means for users to ascertain the charging status of their connected devices without referring to the device screen. This can result in inefficient charging practices, power loss, potential damage to devices due to overcharging and incompatibility to adhere to global fast charging standard like USB-PD.
Therefore, there is a strong unmet need for a solution that enhances user experience, conserves power, and provides real-time charging status feedback.

OBJECT OF THE INVENTION

The primary objective of the present disclosure is to address the shortcomings of existing USB power adapters by providing a multiport charging adapter to charge more than one device at a time. The Intelligent Power Sharing (IPS) algorithm incorporated in the present system helps to determine the Power requirement of each device and dynamically distribute required power decided by the microcontroller. The combination of Hardware design and Software code is the fundamental architecture of this invention.
The objective of the power sharing feature incorporated in the present invention is mainly to optimally distribute power among connected devices, efficiently charge connected devices by reducing the power loss and enable fast charging.
Another objective of the present disclosure is to furnish a multiport charging adapter with various power supply capacities. This seeks to cater to the diverse charging needs of different electronic devices, ensuring compatibility across a spectrum of power requirements.
Yet another objective of the present invention is to provide users with a versatile charging solution capable of delivering the necessary power for a wide range of connected devices, from smartphones to laptops.
A further objective is to provide a novel method for charging with status indication in a multiport adapter. This objective underscores the development of an efficient and user-friendly charging process that not only delivers power but also conveys real-time charging status information to users.
Another objective of the present disclosure is to introduce a multiport USB power adapter specifically designed for charging, equipped with charging status indication features. This objective emphasizes the integration of hardware and software elements, such as a microcontroller unit and color-changing LEDs, to dynamically communicate the charging status of connected devices.
In yet another objective the invention aims to mitigate power loss, prevent overcharging, and offer users a more informed and streamlined charging process.

SUMMARY OF THE INVENTION
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in detailed description section.
The invention encompasses USB Single-port / Multiport Power Adapters designed to provide an intelligent power sharing capability and visually intuitive charging experience. In one embodiment the disclosed power adapters comprises a microcontroller unit and a color-changing RGB LED integrated into each USB port enable dynamic indication of the charging status. Various aspects of the embodiments are briefly summarized herein below:
In one of the aspect the said USB port is a USB Type-C Power Delivery (PD), and it facilitates communication between the power adapter and connected devices, initiating a negotiation process at various voltage levels.
In yet another aspect the specialized firmware in the microcontroller interprets negotiation data, determining the charging stage of the connected device, deciding the power need among all connected devices and allocating optimized power to each port. The charging status is represented by the RGB LED in colors.
In one aspect the RGB LED colors depict various charging percentage, for instance the color RED depicts about 0% to 25% charging, YELLOW depicts about 26% to 75% charging, GREEN depicts about 76% to 100% charging, with intermediate stages in color shades. The embodiments further detail the hardware components and their arrangement on the PCB, highlighting compatibility with Type A and Type C USB connectors.
In one embodiment according to the present invention, the disclosure provides a method that outlines the charging process, involving communication establishment, power capability advertisement, and PDO selection, with corresponding LED color changes indicating the charging status. Overall, the invention addresses the shortcomings of existing USB power adapters by providing a comprehensive solution that enhances user experience, conserves power, and offers real-time charging status feedback.

BRIEF DESCRIPTION OF DRAWING
The invention will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes references to the annexed drawings wherein:
Figure.1: illustrates block diagram of Primary side of the Quasi Resonant flyback circuit.
Figure. 2: illustrates block diagram of the complete USB Power adapter solution.
Figure. 3 illustrates flow chart of the process of the multiport USB power adapter for charging with charging status indication.
Figure. 4 illustrates the communication in-between the USB Power adapter and the device connected captured on the PC side application
Figure. 5 illustrates the communication in-between the USB Power adapter and the device connected captured on a standalone protocol analyzer.

DETAIL DESCRIPTION OF INVENTION
The following detailed description is merely exemplary in nature and is not intended to limit the described embodiments or the application and uses of the described embodiments. This description is not intended to be a detailed catalogue of all the different ways in which the invention may be implemented, or all the features that may be added to the instant invention. For example, features illustrated with respect to one embodiment may be incorporated into other embodiments, and features illustrated with respect to a particular embodiment may be deleted from that embodiment. Thus, the invention contemplates that in some embodiments of the invention, any feature or combination of features set forth herein can be excluded or omitted. In addition, numerous variations and additions to the various embodiments suggested herein will be apparent to those skilled in the art in light of the instant disclosure, which do not depart from the scope of the instant invention. Hence, the following descriptions are intended to illustrate some particular embodiments of the invention, and not to exhaustively specify all permutations, combinations, and variations thereof.
The terms “for example” and “such as,” and grammatical equivalences thereof, the phrase “and without limitation” is understood to follow unless explicitly stated otherwise.
As used herein, the term “about” is meant to account for variations due to any experimental errors which may be commonly accepted in the field. All measurements reported herein are understood to be modified by the term “about,” whether or not the term is explicitly used, unless explicitly stated otherwise. Further for the purposes of the present invention, ranges may be expressed as from “about” one particular value to “about” another particular value. When such a range is expressed, another embodiment includes from the one particular value to the other particular value. The recitation of numerical ranges by endpoints includes all the numeric values subsumed within that range.
As used herein, the singular forms “a”, “an”, and “the” include plural referents unless the context clearly dictates otherwise.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Methods and materials are described herein for use in the present disclosure; other suitable methods and materials known in the art can also be used. The materials, methods and examples are illustrative only and not intended to be limiting by any means. All publications, patent applications, patents and other references mentioned herein are incorporated by reference in their entirety. In case of a conflict, the present specification, including definitions, will control.
Throughout this specification, unless the context requires otherwise the word “comprise”, and variations such as “comprises” and “comprising”, will be understood to imply the inclusion of a stated element or step or group of element or steps but not the exclusion of any other element or step or group of element or steps.
The term “including” is used to mean “including but not limited to” “Including” and “including but not limited to” are used interchangeably.
The term “RGB LED” is used throughout the specification and refers to an LED module that can produce almost any color using these three primary additive colors: Red, Green and Blue.
The present invention provides a multiport charging adapter with a visual and intuitive means for users to easily ascertain the charging status of their connected devices. The said adaptor incorporates a color-changing RGB LED and a microcontroller unit for real-time feedback and the adaptor significantly enhance user experience and promote more efficient charging practices with intelligent power sharing.
In one embodiment the multiport charging adapter according to the present invention is with various power supply capacities, wherein the adapter caters to the diverse charging needs of different electronic devices, ensuring compatibility across a spectrum of power requirements.
In one aspect of the above embodiments the multiport charging adapter provide users with a versatile charging solution capable of delivering the necessary power for a wide range of connected devices, from smartphones, tablets to laptops and other similar gadgets.
In one embodiment the present invention provides novel method and means for charging with status indication in a multiport adapter. The said method provides an efficient and user-friendly charging process that not only delivers power but also conveys real-time charging status information to users. The method seeks to simplify the user experience by eliminating the need to check the device screen and instead rely on visual cues provided by the multiport adapter.
In yet another embodiment the multiport USB power adapter according to the present invention is characteristically designed for charging, equipped with charging status indication features, wherein the integration of intelligent hardware and software elements, selected from a microcontroller unit and color-changing LEDs, to dynamically communicate the charging status of connected devices.
In one aspect the said multiport USB power adaptor mitigate power loss, prevent overcharging, and offer users a more informed and streamlined charging process.
In some embodiment according to the present invention the disclosed USB power adaptor is single or multiport adapters characterised by an intelligent charging status indication for connected device, wherein the said adapter comprises of:
a. A microcontroller unit for Intelligent Power Sharing;
b. A color changing RGB LED in each USB port,
wherein the USB type-C PD (power deliver) facilitates communication between the power adapter and the connected device, allowing for the exchange of power capability information, and
wherein the negotiation process occurs at multiple voltage levels selected from 3V/3A (max), 5V/3A (max), 9V/3A (max), 12V/3A (max), 15V/3A (max) and 20V/3.25A (max), leading to a comprehensive charging profile.
In one aspect of the above embodiment the said microcontroller unit is equipped with specialized firmware, and interprets the negotiation data to determine the charging stage of the connected device and calculate the power needed for each device.
In yet another aspect of the above embodiment the RGB LED responds by changing colors to visually represent the charging status, wherein the color:
- RED depicts about 0% to 25% charging,
- YELLOW depicts about 26% to 75% charging, and
- GREEN depicts about 76% to 100% charging, with intermediate stages in color shades.
In yet another aspect of the above embodiment the said mechanism of charger communication is applicable to both USB Type-C PD and USB Type-A QC ports.
The embodiments further detail the hardware components and their arrangement on the PCB, highlighting compatibility with Type A and Type C USB connectors.
In one embodiment of the present invention the disclosed multiport USB power adapter with characteristic charging status indication comprises:
a switch mode power supply (SMPS) (100), a microcontroller (201A, 201B), a LED (202A, 202B and 202C), a current sense resistor, a USB connector and a PCB,
wherein the components of the adapter are placed on the PCB and connected through a PCB trace and the device charging status is indicated through the colour changing LEDs,
wherein the said LEDs color change indicates status of charging as:
- RED depicts about 0% to 25% charging,
- YELLOW depicts about 26% to 75% charging, and
- GREEN depicts about 76% to 100% charging, with intermediate stages in color shades.
In another embodiment the disclosure provides a method for charging with the multiport adaptor of the present invention comprising the steps of:
a. connecting the power adaptor and an electronic device through the USB-C cable;
b. establishing communication with each other;
c. advertising its power capabilities as PDO (power data object) with connected device;
d. selecting one of the PDO by the device from the list of advertised PDOs by the adaptor;
e. receiving through requested PDO, the power adaptor established communication with the device;
f. delivering required voltage and current by adaptor as per the requested PDO; and
g. during the course of charging the different PDO get selected from 3.3V/3A (max), 5V/3A (max), 9V/3A (max), 12V/3A (max), 15V/3A (max) and 20V/3.25A (max), and the change in color of LED indicating status of charging of the device.
In one aspect of the above embodiments the said PDO the USB connectors are either Type A or Type C.
In yet another aspect of the above embodiments the said change in color of LED indicates status of charging of the device, wherein the color RED depicts about 0% to 25% charging, YELLOW depicts about 26% to 75% charging, and GREEN depicts about 76% to 100% charging, with intermediate stages in color shades.
In one aspect of the above embodiments the USB Type-C PD protocol enables data and power transfer between devices, allowing for dynamic negotiation of power requirements.
In yet another aspect of the above embodiments the said microcontroller unit, embedded in the power adapter, utilizes a software code to process negotiated data and determine the charging stage of the connected device.
In one aspect of the above embodiments the said RGB LED in each port visually communicates this information to the user, eliminating the need to check the device screen.
Some of the exemplary embodiment of the present invention can be enumerated as:
In one embodiment the present invention provides a USB Single-port / Multiport Power Adapter with Intelligent Power Sharing and Charging Status Indication, comprising:
a. microcontroller unit integrated into the power adapter;
b. USB Type-C Power Delivery (PD) and USB Type-A Quick Charge (QC) ports;
c. color-changing RGB LED associated with each port; and
d. software code executed by the microcontroller unit for interpreting negotiated data and dynamically indicating the power needed and charging status of connected devices through the RGB LED.
In one aspect of the above embodiment in the said USB Single-port / Multiport Power Adapter the USB Type-C PD ports and USB Type-A QC ports facilitate dynamic negotiation of power requirements with connected devices, including voltage levels selected from 3.3V/3A(max), 5V/3A(max), 9V/3A(max), 12V/3A(max), 15V/3A(max) and 20V/3.25A(max).
In another aspect of the above embodiment the said USB Single-port / Multiport Power Adapter the microcontroller unit utilizes specialized firmware to process negotiation data and determine charging stages, resulting in visual indications through the RGB LED in a range of colors, including but not limited to RED (0%-25% charging), YELLOW (26%-75% charging), and GREEN (76%-100% charging).
In yet another aspect of the above embodiment the said USB Single-port / Multiport Power Adapter the RGB LED is configured to display intermediate charging stages using color shades produced by combining the base colors of red, green, and blue, providing a detailed and intuitive representation of the charging process.
In one embodiment the present invention adds intelligence to the USB Multiport Smart Charger using hardware and software design. In one aspect with the said feature the USB Multiport smart charger can detect the current charging status of the (power sink) device connected, keep track of the connected (power sink) device battery voltage and current and show charging stage by color change of the Red-Green-Blue (RGB) LED of the respective USB port (Type-C / Type-A) of the power adapter.
Some of the key advantages of the present invention USB Single-port / Multiport Power Adapter with Intelligent Charging Status Indication, includes:
- detection of device’s power needs upon connection,
- dynamically decide power sharing among connected devices,
- deliver the power as per the need,
- visual charging status indication,
- power conservation,
- protection against overcharging,
- prevention of endless charging cycles,
- enhanced device battery life, and an improved user experience.
The applications extend beyond conventional USB charging scenarios to include Automotive in-Cabin chargers and home inverters, where the intelligent charging status indication contributes to user convenience and power efficiency.
The described invention addresses the challenges associated with existing USB power adapters, providing a novel and intelligent solution for users to monitor and optimize the charging process.

EXAMPLES
The following examples include only exemplary embodiments to illustrate the practice of this disclosure. It will be evident to those skilled in the art that the disclosure is not limited to the details of the following illustrative examples and that the present disclosure may be embodied in other specific forms without departing from the essential attributes thereof, and it is therefore desired that the present embodiments and examples be considered in all respects as illustrative and not restrictive.

Example 1:
A complete USB power adapter is depicted in Figure-2. The figure exemplifies the complete USB Power adapter solution (200), with a Primary side of the Quasi Resonant flyback circuit (100) is connected to Secondary side and make complete USB Power adapter solution (200). The complete USB Power adapter solution 200, particularly, the USB PD Controller is having two channels (201A, 201B), the channel one of USB PD Controller denoted as (201A), it has two subchannels (211, 212), and channel two of the USB PD controller denoted as (201B), it has one sub channel (213). Furthermore, the sub channels (211, 212, 213) are used to supply power independently to the connected devices (204, 205, 206), the adaptor also has color changing led light (202A), (202B), (202C) indicates charging status of devices which are connected on the respective channel and the change in colour of the led (RED, YELLOW, GREEN) is placed based on the charging status percentage of charge of the connected device.

Example 2:
An operation example of the USB power adapter (200) is depicted in Figure-3 as a flow diagram which states that a method for charging with status indication multiport adaptor comprising step of:
• Step 1: (301) connecting a power adaptor (200) and one or more device (204, 205, 206) through the USB Type-C PD cable, establishing communication with each other over communication channels;
• Step 2: (302) advertising the power adapter power capabilities called as PDO (power data object) with one or more connected devices (204, 205, 206);
• Step 3: (303) the device requests / selects one of the PDO from the list of advertised PDOs by the adaptor (200);
• Step 4: (304) upon receiving the requested PDO, the power adaptor establishes a communication contract with the device
• Step 5: (305) the power adapter (200) delivers required voltage and the devices (204, 205, 206) receive the voltage and rated current by adaptor as per the PDO; the negotiation between the connected devices repeats at all level of voltage requirements viz., 3V/3A(max), 5V/3A(max), 9V/3A(max), 12V/3A(max), 15V/3A(max) and 20V/3.25A(max); and
• Step 6: (306) The power adapter (200) has a microcontroller unit (MCU) (201A, 201B), which runs a software / firmware on it using negotiated data received by the power adapter (as in step 4), the MCU detects the charging stage of the connected device and the firmware calculates required power (current/voltage) needed when the requested PDO is selected. The MCU component (201A) communicates to another MCU component (201B) about the power rating in channels (211) and (212). Hence the dynamic power allocation between devices is possible on-the-fly.
• Step 7: The digital pins of the MCU channels are connected to RGB LED.
• Step 8: Once the power is calculated as mentioned in Step 6 the MCU using Pulse Width Modulation (PWM) signals drives the RGB LED to display an appropriate color to indicate the charging status. E.g. RED – 0-25% charging, YELLOW – 26-75% charging and GREEN – 76-100% charging.
It can also show an intermediate charging stage with a color shade produced in combination of red, green and blue as base color present in the RGB LED.
Each port on the power adapter has a RGB LED to indicate the charging stage of the device connected to that port. The same mechanism applies to USB Type-A QC (Quick Charge) port as well. The user can check the color of the LED and make a decision on when to unplug the device connected to the power adapter.
For instance, in Step 2, in reference to figure 2, when a device such as notebook/laptop (204) or a phone (206) is connected to the power adapter (200), the device (204, 206) detects that a power adapter (200) is connected and the power adapter (200) advertises it’s power capabilities as PDOs, as can be seen in Figure 5.

Example 2a:
Figure 4 is a snapshot of a log file obtained from a sniffer capturing communication between power adapter (200) and a device (204, 205, 206). The highlighted part shows different voltages (PDO) selected by the device (204, 205, 206) to be charged and supported by the power adapter (200) during the complete charging process. Upon selection of each voltage the device (204 or 205 or 206) under charging enters a new stage in the charging process. The MCU (100) present in the power adapter (200) detects the power stage from the message, software in it estimates charging stage and accordingly drive the RGB LED light (202A, 202B, 202C) to indicate a particular color.

Example 3:
Example 3 discloses exemplary operation modes of the multiport USB power adapter (200) with different charging status indications.

Example 3a:
A multiport USB power adapter (200) for charging with charging status indication for 0-25% charging. The adapter (200) has a switch mode power supply (SMPS) (100), a microcontroller (201A and 201B), a led (202A, 202B and 202C), a current sense resistor, a USB connector and a PCB. The building components of the adaptor are placed on the PCB and connected through a PCB traces and the device (204, 205 and 206) indicates charging status through the colour changing LED indicating a RED color for charging status between 0%-25%.

Example 3b:
A multiport USB power adapter (200) for charging with charging status indication for 0-25% charging. The adapter (200) has a switch mode power supply (SMPS) (100), a microcontroller (201A, 201B), a led (202A, 202B, 202C), a current sense resistor, a USB connector and a PCB. The building components of the adaptor are placed on the PCB and connected through a PCB traces and the device (204, 205, 206) indicates charging status through the colour changing LED indicating a YELLOW color for charging status between 26%-75%.

Example 3c:
A multiport USB power adapter (200) for charging with charging status indication for 0-25% charging. The adapter (200) has a switch mode power supply (SMPS) (100), a microcontroller (201A, 201B), a led (202A, 202B, 202C), a current sense resistor, a USB connector and a PCB. The building components of the adaptor are placed on the PCB and connected through a PCB traces and the device (204, 205 and 206) indicates charging status through the colour changing LED indicating a GREEN color for charging status between 76%-100%.
The USB connectors in Example 3a, 3b, and 3c can be Type A and Type C USB connectors.

Example 4:
A laptop which is at 30% charge, is charged with the status indication multiport adaptor (200) in real time, the charging steps comprising:
i. connecting the power adaptor and laptop through the USB-C cable, establishing communication with each other;
ii. advertising its power capabilities called as PDO (power data object) with connected laptop;
iii. selecting one of the PDO by the laptop from the list of advertised PDOs by the adaptor (200);
iv. receiving through requested PDO, the power adaptor established Communication with the laptop;
v. delivering required voltage and current by adaptor as per the requested PDO; and during the course of charging the different PDO get selected like 3.3V/3A(max), 5V/3A(max), 9V/3A(max), 12V/3A(max), 15V/3A(max) and 20V/3.25A(max), which is indicating status of Charge through various colour LED.
The PDO (Power Data Objects) the USB connectors are Type A and Type C, the device indicates charging status through the colour changing LED indicates in between 0-25 % with RED colour, 26-75% YELLOW colour and 76-100% Green respectively.
In the above case as the charging level was 30% in the beginning, so the smart charger (200) will detect the current battery voltage and turns the color changing RGB LED to ‘YELLOW’, as the charge in the laptop increases the color changes accordingly and turns ‘GREEN’ when 100% charged. Similarly other electronic devices like phone, tablet etc. can be charged with the adaptor (200).
The embodiments and examples provide an improved experience, and an improved, efficient, viable method for charging with charging indication through various color led.
The present invention and some of its advantages have been described in detail for some embodiments. It should be understood that although the process is described with reference to multiport USB Power adaptor for charging with charging indication through various color led, the process may be used in other contexts as well like charging indication through various color led. It should also be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims. An embodiment of the invention may achieve multiple objectives, but not every embodiment falling within the scope of the attached claims will achieve every objective. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, platform, composition of matter, means, methods and steps described in the specification.
A person having ordinary skill in the art will readily appreciate from the disclosure of the present invention that processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed are equivalent to, and fall within the scope of, what is claimed. Accordingly, the appended claims are intended to include within their scope such processes, manufacture, compositions of matter, means, methods, or steps.
, Claims:WE CLAIM:
1. A multiport USB power adapter (200) for charging connected devices with charging status indication comprising:
a switch mode power supply (SMPS) (100), microcontroller (201A, 201B), led (202A, 202B, 202C), current sense resistor, USB connector and PCB,
wherein the above components of the adaptor (200) are placed on the PCB and connected through a PCB traces and the charging status of connected devices (204, 205, 206) is indicated through the colour changing LED (202A, 202B, 202C) indicating charging status between 0-25% with red colour, 26-75% yellow colour, and 76-100% with green colour respectively.
2. The multiport USB power adapter (200) as claimed in claim 1, wherein the said USB connectors are Type A and Type C.
3. The multiport USB power adapter (200) as claimed in claim 1, wherein the colour changing RGB LED (202A, 202B, 202C) of the adaptor (200) indicates charging status of one or more connected electronic devices selected from Laptop (204) or Mobile phone (206) or tablet (205).
4. The multiport USB power adapter (200) as claimed in claim 1, wherein the USB Power Adapter identifies device to be a laptop (204), tablet (206) or a phone (206) from required voltage as finalized during the selection of PDO during the communication process.
5. The multiport USB power adapter (200) as claimed in claim 1, wherein the USB Power adaptor identifies required voltage need to be supply to the connected device during finalizing of the selection from the list of PDOs.
6. A method for charging a device with status indication multiport adaptor (200) comprising step of:
a. connecting the power adaptor (200) and one or more device (204, 205, 206) through the USB connector, established communication with each other;
b. advertising its power capabilities called as PDO (power data object) with connected device;
c. selecting one of the PDO by the device from the list of advertised PDOs by the adaptor;
d. receiving through requested PDO, the power adaptor established Communication with the device;
e. delivering required voltage and current by adaptor as per the PDO; and
f. during the course of charging the different PDO get selected like 3.3V/3A(max), 5V/3A(max), 9V/3A(max), 12V/3A(max), 15V/3A(max) and 20V/3.25A(max), which is indicating status of Charge through various colour LED.
7. The method as claimed in claim 6, wherein the PDO (Power Data Objects) is the power capability advertised by the USB Power Adapter.
8. The method as claimed in claim 6, Wherein the USB connectors are Type A and Type C.
9. The method as claimed in claim 6, wherein the device comprising of colour changing RGB LED indicate charging status of the connected electronic devices.
10. The method as claimed in claim 6, Wherein the device indicates charging status through the colour changing LED indicating the charging status between 0-25 % with Red colour, 26-75% with Yellow colour, and 76-100% with Green colour.

Dated this 16th day of March, 2024

BISWAJIT BISWAL
[IN/PA-2659]
Agent for the Applicant