DESC:CROSS REFERENCE TO RELATED APPLICATION
This application is based on and derives the benefit of Indian Provisional Application IN 202421064201, the contents of which are incorporated herein by reference.
TECHNICAL FIELD
[001] Embodiments disclosed herein relate to Direct Current (DC) appliances, and more particularly to energy storage systems for Pay as you go (PAYGo) enabled DC appliances.
BACKGROUND
[002] DC appliances (which may be, for example, a refrigerator, television, a washing machine, a dishwasher, a grinder, a mixer, a juicer, a water filter, a water purifier, and so on) may include one or more functional components (which performs the function(s) of the DC appliance), and one or more energy supply systems. The one or more functional components and the one or more energy supply systems require protection from misuse during deactivated days (considering that the DC appliance is being operated under a systematic rent-to-own process), physical theft, tampering, and so on.
[003] Further, some DC appliances may integrate the functional components, the energy system, and additional components such as a PAYGo component into a single unit. If any service issue comes up in the appliances, the complete system needs to be analyzed and repaired. This is time consuming and involves a lot of efforts and processes.
[004] Hence, there is a need in the art for solutions which will overcome the above mentioned drawback(s), among others.
OBJECTS
[005] The principal object of embodiments herein is to disclose a tamper proof energy storage system for a PAYGo enabled DC appliance (or (recharge function integrated DC appliance).
[006] Another object of embodiments herein is to disclose a system configured in a master slave configuration, where the system uses a protected control cable to avoid physical tampering.
[001] Another object of embodiments herein is to disclose a single PAYGo -dual component synchronous protection.
[007] Another object of embodiments herein is to disclose a tamper proof energy storage system to operate a DC appliance (e.g., recharge function integrated DC appliance) only when a PAYGo module is recharged.
[008] Another object of embodiments herein is to disclose a tamper proof energy storage system with a control module to control an operation of a relay to supply power to the DC appliance and DC loads.
[009] Another object of embodiments herein is to disclose a tamper proof energy storage system, that disable the power supply in case of any tampering with the control module and the PAYGo Module.
[0010] These and other aspects of the embodiments herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating at least one embodiment and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications.
BRIEF DESCRIPTION OF FIGURES
[0011] Embodiments herein are illustrated in the accompanying drawings, throughout which like reference letters indicate corresponding parts in the various figures. The embodiments herein will be better understood from the following description with reference to the following illustrated drawings. Embodiments herein are illustrated by way of examples in the accompanying drawings, and in which:
[0012] FIG. 1 depicts a tamper proof energy storage system for a PAYGo enabled DC appliance, according to embodiments as disclosed herein;
[0013] FIG. 2A depicts a detailed block diagram of a control module included in the tamper proof energy storage system, according to embodiments as disclosed herein;
[0014] FIG. 2B depicts an example of the control module, according to embodiments as disclosed herein;
[0015] FIG. 3 shows an example of the energy storage system, implemented with a PAYGo DC appliance, according to embodiments as disclosed herein;
[0016] FIG. 4 shows a connection of the energy storage system with the DC appliance, according to embodiments as disclosed herein;
[0017] FIG. 5 shows an example of a hardware connection a printed circuit board (PCB) on the DC appliance, according to embodiments as disclosed herein; and
[0018] FIG. 6 shows a flowchart for a method for operating the energy storage system for the DC appliance, according to embodiments as disclosed herein.

DETAILED DESCRIPTION
[0019] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0020] The words/phrases "exemplary", “example”, “illustration”, “in an instance”, “and the like”, “and so on”, “etc.”, “etcetera”, “e.g.,”, “i.e.,” are merely used herein to mean "serving as an example, instance, or illustration. Any embodiment or implementation of the present subject matter described herein using the words/phrases "exemplary", “example”, “illustration”, “in an instance”, “and the like”, “and so on”, “etc.”, “etcetera”, “e.g.,” , “i.e.,” is not necessarily to be construed as preferred or advantageous over other embodiments.
[0021] Embodiments herein may be described and illustrated in terms of blocks which carry out a described function or functions. These blocks, which may be referred to herein as managers, units, modules, hardware components or the like, are physically implemented by analog and/or digital circuits such as logic gates, integrated circuits, microprocessors, microcontrollers, memory circuits, passive electronic components, active electronic components, optical components, hardwired circuits and the like, and may optionally be driven by a firmware. The circuits may, for example, be embodied in one or more semiconductor chips, or on substrate supports such as printed circuit boards and the like. The circuits constituting a block may be implemented by dedicated hardware, or by a processor (e.g., one or more programmed microprocessors and associated circuitry), or by a combination of dedicated hardware to perform some functions of the block and a processor to perform other functions of the block. Each block of the embodiments may be physically separated into two or more interacting and discrete blocks without departing from the scope of the disclosure. Likewise, the blocks of the embodiments may be physically combined into more complex blocks without departing from the scope of the disclosure.
[0022] It should be noted that elements in the drawings are illustrated for the purposes of this description and ease of understanding and may not have necessarily been drawn to scale. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the present embodiments so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein. Furthermore, in terms of the system, one or more components/modules which includes the system may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the present embodiments so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein.
[0023] The accompanying drawings are used to help easily understand various technical features and it should be understood that the embodiments presented herein are not limited by the accompanying drawings. As such, the present disclosure should be construed to extend to any modifications, equivalents, and substitutes in addition to those which are particularly set out in the accompanying drawings and the corresponding description. Usage of words such as first, second, third etc., to describe components/elements/steps is for the purposes of this description and should not be construed as sequential ordering/placement/occurrence unless specified otherwise.
[0024] The embodiments herein achieve a tamper proof energy storage system for a PAYGo enabled DC appliance. Referring now to the drawings, and more particularly to FIGS. 1 through 6, where similar reference characters denote corresponding features consistently throughout the figures, there are shown embodiments.
[0025] FIG. 1 depicts a tamper proof energy storage system for a PAYGo enabled DC appliance, according to embodiments as disclosed herein. The PAYGo enabled DC appliance 100 as referred to herein may be any DC appliance. Examples of the DC appliance 100 may be, but not limited to, a refrigerator, television, a washing machine, a dishwasher, a grinder, a mixer, a juicer, a water filter, a water purifier, and so on. The PAYGo enabled DC appliance 100, as depicted includes an energy storage system 101, a PAYGo module 102, and one or more functional modules 103. In an embodiment herein, the energy storage system 101 may be a tamper proof energy storage system. The functional modules 103 enable the DC appliance to perform its respective functionalities. For example, functionalities may refer to enabling the DC appliance 100 to start the compressor, compressor Fan, internal LED etc. for regular functioning of the DC Refrigerator. Embodiments herein refer to the functional modules 103 interchangeably as load(s), DC load(s), and so on. Embodiments herein disclose a master slave configuration on the DC appliance 100 and the energy storage system 101 to make both of them work in synchronization to avoid any misuse. The PAYGo DC appliance 100 works only works when the DC appliance 100 is recharged through the PAYGo module 102. When the PAYGo device is recharged, the PAYGo module 102 generates the first signal to enable or disable the DC appliance 100. The first signal may be sent to the control module 109. Therefore, the PAYGo module 102 herein operates as a master configuration. The first signal may be received by the control module 109. The control module 109 generates a feedback signal by processing the received first signal. The feedback signal from the control module operates the relay 108. The control module 109 operates the relay 108 based on the first signal received from the PAYGo module 102, therefore, the control module 109 operates as the slave to the PAYGo module 102.
[0026] The DC appliance 100 may further include a control power cable 104. The control power cable 104 may enable the PAYGo module 102 to communicate and/or exchange energy with the energy storage system 101. The control power cable 104 may be a specially protected cable, so as to prevent an unauthorized user from tampering/damaging the control power cable 104. In an embodiment herein, the specially protected cable may be a coaxial cable, which includes of concentric layers of electrical conductors and insulating material. This construction ensures signals are enclosed within the cable and prevents electrical noise from interfering with the signal and consumes less power. In an example , the control power cable 104 may include a plurality of wires. The control power cable 104 may include a positive wire and a negative wire connected to the PAYGo module 102. The positive and negative wires may provide power to the PAYGo module 102, so as to keep the PAYGo module 102 powered ON all the time.
[0027] In an embodiment herein, the PAYGo module 102 may include at least one User Interface (UI) 106, which may enable a user to interact with the DC appliance 100, such as inputting an authorization code, viewing status of the DC appliance 100, and so on. Examples of the UI 106 may be, but not limited to, a keypad, a touchscreen, a display, a speaker, and so on. The PAYGo module 102 may further include a PAYGo control module 107, which may verify the authorization code (as provided by the user). On successfully verifying the authorization code, the PAYGo control module 107 may provide a first signal to the energy storage system 101 via a control wire (E). The first signal includes at least one of an enable signal and a disable signal. When the PAYGo Module 102 gets recharged by successfully verifying the authorization code, the PAYGo control module 107 generates the enable signal. The enable signal is received by the control module 109. The control module 109 processes the enable signal and generates a first feedback signal as the second signal, and operates the relay 108 from a normally open (NO) to a normally closed (NC) condition. The operation of the relay 108 provides the power supply to the DC appliance 100 and the other DC loads from the input from the load controller. Therefore, the enable signal is utilized to enable and power up the DC appliance 100 and the other DC loads. When the recharge period of the PAYGo module 102 expires and if no authorization code is entered, then the PAYGo control module 107 may provide a disable signal to the energy storage system 101 via a control wire (E). On receiving the disable signal, the control module 109 generates a second feedback signal, and operates the relay 108 from the NC to NO condition. The power supply from the input from the load controller gets disconnected from the DC appliance 100 and the other DC loads. Therefore the disable signal disconnects the power supply to the DC appliance 100 and the other DC loads, in case the PAYGo module 102 is out of recharge and is not further recharged to work.
[0028] The DC appliance 100 may further includes a main power cable 105. The main power cable 105 may enable the energy storage system 101 to provide power to the functional module(s) 103. The main power cable 105 may carry main load power including the main block terminal output, DC pin supplementary load outputs, Universal Serial Bus (USB) terminals, and so on. The main power cable 105 may be enabled or disabled through a relay 108 (which may be controlled by the control module 109).
[0029] The energy storage system 101 includes the relay 108, and a control module 109 (as depicted in FIG. 2A). The control module 109 includes a transistor switch, a voltage regulator, and an operational amplifier/comparator. The control module 109 receives and reads the first signal through the control power cable 104 from the PAYGo module 102. Based on the read signal, the control module 109 provides a second signal to operate the relay 108. Therefore, the control module 109 controls the operation of the relay 108.
[0030] The relay 108 may be a high power relay. Based on the second signal received from the control module 109, the relay 108 may switch to/from NC/NO to enable or disable the power output of the energy storage system 101. In an embodiment herein, the default condition of the relay 108 is normally open (NO), where the energy storage system 101 does not provide a power output, and the functional module(s) 103 are not operational.
[0031] In an embodiment herein, the energy storage system 101 may include an output power terminal. In an example herein, the output power terminal may be a 12V/24V terminal. The energy storage system 101 may provide power to a second DC appliance, wherein the second DC appliance is connected to the output power terminal, irrespective of status of the first signal (enable/disable). The energy storage system 101 may provide power only to the second DC appliance and not the functional module(s) 103, when the first signal is disabled. The energy storage system 101 may provide power to the second DC appliance and the functional module(s) 103, when the first signal is enabled.
[0032] FIG. 2A depicts a detailed block diagram of the control module (109) included in the tamper proof energy storage system, according to embodiments as disclosed herein. In an embodiment herein, the control module 109 may include a comparator 202, a voltage regulator 204, and a transistor switch 206. The transistor switch 206 may include, but is not limited to a MOSFET. The MOSFET is used as feedback resistor in integrated charge amplifiers. The voltage regulator maintains a constant output voltage by adjusting the output based on the input voltage and load conditions. The comparator 202 compares two voltages and output a digital signal to indicate which is larger.
[0033] In an example, the control module (109) compares the reference signal from a refrigerator PAYGo PCB and gives a feedback accordingly to keep the ESS load outputs active or inactive to provide tamper proofing and avoid customer misuse ESS during PAYGo disabled period.
[0034] FIG. 2B depicts an example of the control module (109), according to embodiments as disclosed herein. In an embodiment herein, the control module 109 along with the PAYGo module 102 may operate in the master slave configuration. The PAYGo DC appliance 100 works only works when the DC appliance 100 is recharged through the PAYGo module 102. The PAYGo module 102 may be activated by a code (or instruction) received through the UI 106. When the PAYGo device is recharged, the PAYGo module 102 generates the first signal to enable or disable the DC appliance 100. The first signal may be sent to the control module 109. Therefore, the PAYGo module 102 herein operates as a master configuration. The first signal may be received by the control module 109. The control module 109 generates a feedback signal by processing the received first signal. The feedback signal from the control module operates the relay 108. The control module 109 operates the relay 108 based on the first signal received from the PAYGo module 102, therefore, the control module 109 operates as the slave to the PAYGo module 102.
[0035] In an embodiment herein, on receiving the first signal, the control module 109 compares the received signal through the comparator 202. The output of the comparator 202 is stabilized by the voltage regulator 204. The stabilized output from the voltage regulator 204 is received by the transistor switch 206. The stabilized output may switch ON or switch OFF the transistor switch. The transistor switch, when switched ON, triggers the relay 108 from NO to NC condition, thereby connecting the ESS 101 to the DC appliance 100. Additionally, the transistor switch 206, also sends a signal to a DC to DC converter, to provide power to other 12 V loads. In case, when the PAYGo module is not recharged , the transistor switch 206 remains switched OFF, keeping the relay in NO condition, and also disconnects the DC to DC converter from the 12V loads. Therefore, when the PAYGo module 102 is not recharged the user may not be able to operate the DC appliance 100 as well as the user may not be able use the ESS 101 to charge other 12V loads.
[0036] In an embodiment herein, the control module 109 is integrated along with the ESS 101. In an embodiment herein, the control module is an electronic circuit embedded on a circuit board of the ESS 101. The integration of the control module 109 with the ESS 101 makes it tamperproof. In the case, if the control module 109 is removed from the circuit, the relay 108 may stop working, making it impossible for the user to operate the DC appliance 100. A threshold voltage required for the relay 108 to operate may be provided by the control module 109. Therefore, in the absence of the control module 109 the DC appliance 100 and the 12V loads may not work.
[0037] Embodiments herein may protect the DC appliance 100 and the energy storage system (ESS) 101 from misuse during deactivated days for systematic rent-to-own process. With this configuration, the energy storage system 101 and the DC appliance 100 are disabled to avoid them being used during a time, when the consumer has not paid for the DC appliance 100.
[0038] FIG. 3 shows an example of the energy storage system, implemented with the PAYGo DC appliance, according to embodiments as disclosed herein. The Control Module 109 may be implemented on a printed circuit board (PCB) circuit. The control module 109 is connected to the output E, + , and – of the PAYGo module 102. In an embodiment herein the PAYGo module 102 may be a part of the PCB. The output of the control module 109 may be connected to the Relay 108. The relay connects the input from the load controller to the DC appliance 100. The DC to DC converter 208 is connected to the input from the load converter after the relay 108connection to the load controller. Therefore, if the relay is in NO condition, the DC to DC converter may not work.
[0039] FIG. 4 shows the connection of the energy storage system with the DC appliance, according to embodiments as disclosed herein. There are two cables. The main power cable 105 powers up the DC appliance. The main power cable is connected to the DC appliance through the relay 108 from the power supply. The control power cable 104 connects the PAYGo module 102 to the ESS 101. Whenever the PAYGo module 102 is recharged, the code or the instruction is entered through the keyboard on the DC appliance 100. This generates the enable signal E, received by the ESS 101, in turn closing the relay 108 to provide power to the DC appliance 100 through the main power cable 105.
[0040] FIG. 5 shows an example of a hardware connection a printed circuit board (PCB) on the DC appliance, according to embodiments as disclosed herein. The control module 109 and the PAYGo module 102 may be implemented on a single PCB. The DC appliance has a cable connector 502 to plug in the PCB through the control power cable 104.
[0041] FIG. 6 shows a flowchart for a method 600 for operating the energy storage system for the DC appliance, according to embodiments as disclosed herein. At step 602, the first signal from the PAYGo Module 102 is received by the control module 109. At step 604, the first signal is compared with the threshold voltage signal by the comparator 202. At step 606, the feedback signal is generated by the comparator 202 by comparing the first signal with the threshold voltage signal. At step 608, the feedback signal is stabilized by the voltage regulator 204. At step 610, the transistor switch 206 is operated to at least one of a switch ON mode and a switch OFF mode using the feedback signal. At step 612, the relay 108 is triggered to at least one of a normally open (NO) and a normally closed (NC) condition by the feedback signal from the transistor switch 206.
[0042] The various actions in method 600 may be performed in the order presented, in a different order or simultaneously. Further, in some embodiments, some actions listed in FIG. 6 may be omitted.
[0043] Embodiments herein protect the DC appliance 100 against physical theft by using fitting screws, which are not locally or easily available. In an example embodiment herein, the fitting screws may be Allen key screws, which may be opened only by using tools specifically designed for opening Allen keys.
[0044] In an embodiment herein, the energy storage system 101 may be placed in a cabinet, wherein one or more hologram tamper proof stickers may be placed on the cabinet, which may be used to track if an unauthorized person tried to open the cabinet without permission.
[0045] Embodiments herein protect the DC appliance 100 against tampering, wherein the control power cable and the main power cable are designed such that if either one of the cables are physically cut, the DC appliance 100 and the energy storage system 101 will be totally disabled.
[0046] Embodiments herein integrate the PAYGo module 102 as a single unit with the DC appliance 100 and the energy storage system 101. They are integrated as a single unit for if any service issue comes up, the appliance and the energy storage system 101 being two different units, any service related issue will be easy to trace and attend. Adding PAYGo to both the DC appliance 100 and ESS 101can be a costly which uses a Primary PAYGo module as master slave configuration to sync both the DC appliance 100 and the ESS 101 to switch off during the ‘no recharge’ period to avoid any kind of misuse. The configuration gives protection from physical misuse during no recharge, deactivated period keep the ESS 101 healthy to be used by the DC appliance 101 or any PayGo integrated DC appliance, when in use. Therefore, the system is a single PayGo, module dual component synchronization.
[0047] The embodiments disclosed herein may be implemented through at least one software program running on at least one hardware device and performing DC Appliance/network management functions to control the enabling/disabling of elements of the appliance. The elements include blocks which may be at least one of a hardware device, or a combination of hardware device and software module.
[0048] The embodiments disclosed herein describe a tamper proof energy storage system for a PAYGo enabled DC appliance. Therefore, it is understood that the scope of the protection is extended to such a program and in addition to a computer readable means having a message therein, such computer readable storage means contain program code means for implementation of one or more steps of the method, when the program runs on a server or mobile device or any suitable programmable device. The method is implemented in at least one embodiment through or together with a software program written in e.g., Very high speed integrated circuit Hardware Description Language (VHDL) another programming language, or implemented by one or more VHDL or several software modules being executed on at least one hardware device. The hardware device may be any kind of portable device that may be programmed. The device may also include means which could be e.g., hardware means like e.g., an ASIC, or a combination of hardware and software means, e.g. an ASIC and an FPGA, or at least one microprocessor and at least one memory with software modules located therein. The method embodiments described herein could be implemented partly in hardware and partly in software. Alternatively, the invention may be implemented on different hardware devices, e.g., using a plurality of CPUs.
[0049] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others may, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of embodiments, those skilled in the art will recognize that the embodiments herein may be practiced with modification within the scope of the embodiments as described herein.

,CLAIMS:STATEMENT OF CLAIMS
We Claim:
1. An energy storage system (101) for a DC appliance (100), comprising:
a control module (109); and
a relay (108),
wherein the control module (109) is connected between a PAYGo module (102) and the relay (108), wherein the control module (109) is connected to the PAYGo module (102) through a control power cable (104), wherein the control module (109) is configured to:
receive a first signal from the PAYGo module (102);
generate a feedback signal on comparing the first signal with a threshold voltage signal; and
operate the relay (108) through the generated feedback signal.
2. The energy storage system (101) as claimed in claim 1, wherein the control module (109) along with the PAYGo module (102) operates in a master slave configuration, wherein the energy storage system (101) is a tamperproof energy storage system.
3. The energy storage system (101) as claimed in claim 2, wherein the system (101) is configured to:
activate the PAYGo module (102) by a recharge code received through a user interface (UI) (106);
generate by the PAYGo module (102) the first signal; wherein the PAYGo module (102) operates as a master to generate the first signal; and
receive, by the control module (109), the first signal from the PAYGo module (102); wherein the control module (109) operates in a slave configuration to generate the feedback signal to operate the relay (108) based on the first signal received from the PAYGo module (102).
4. The energy storage system (101) as claimed in claim 1, wherein the control module (109) comprises a comparator (202), a voltage regulator (204), and a transistor switch (206), wherein the comparator (202) compares the received first signal with the threshold voltage signal, and generates the feedback signal, wherein the voltage regulator (204) stabilizes the feedback signal by regulating the voltage of the feedback signal, and.
5. The energy storage system (101) as claimed in claim 4, wherein the stabilized feedback signal operates the transistor switch to at least one of a switch ON mode and a switch OFF mode.
6. The energy storage system (101) as claimed in claim 4, wherein the transistor switch (206) when switched ON, triggers the relay (108) from a normally open (NO) to normally closed (NC) condition, thereby connecting the ESS 101 to the DC appliance (100), wherein the DC appliance (100) is a recharge function integrated DC appliance.
7. The energy storage system (101) as claimed in claim 4, wherein the first signal comprises at least one of an enable signal and a disable signal.
8. The energy storage system (101) as claimed in claim 7, wherein if the first signal comprises at least one enable signal, wherein the comparator (202) generates a first feedback signal, switching ON the transistor switch (206), and triggering the relay (108) to a normally closed (NC) condition.
9. The energy storage system (101) as claimed in claim 7, wherein if the first signal comprises at least one enable signal, the transistor switch (206) sends a signal to a DC to DC converter (208), to provide power to at least one 12V load.
10. The energy storage system (101) as claimed in claim 1, wherein the relay (108) is normally in a normally open (NO) condition.
11. The energy storage system (101) as claimed in claim 1, wherein the relay (108) connects the input from the load controller to the other functional modules (105) through a main power cable (105).
12. The energy storage system (101) as claimed in claim 4, wherein the transistor switch (206) remains switched OFF, keeping the relay in NO condition, and disconnects the DC to DC converter (108) from the 12V load.
13. A method to operate an energy storage system, comprising:
receiving by a control module (109), a first signal from a PAYGo Module (102);
generating by the control module (109), a feedback signal on comparing the first signal with a threshold voltage signal; and
operating, by the control module (109), the relay (108) through the generated feedback signal.
14. The method as claimed in claim 15, wherein the method comprises:
receiving by a comparator (202), the first signal from a PAYGo Module (102);
comparing by the comparator (202), the first signal with the threshold voltage signal;
generating by the comparator (202), the feedback signal on comparing the first signal with the threshold voltage signal;
stabilizing, by a voltage regulator (204), the feedback signal;
operating, a transistor switch (206) to at least one of a switch ON mode and a switch OFF mode using the feedback signal; and
triggering, a relay (108) to at least one of a normally open (NO) and a normally closed (NC) condition.
15. The method as claimed in claim 16, wherein the method comprises:
triggering the relay (108) from a normally open (NO) to normally closed (NC) condition, when transistor switch (206) switched ON, thereby connecting the ESS 101 to the DC appliance (100), wherein the DC appliance (100) is a recharge function integrated DC appliance.
16. The method as claimed in claim 15, wherein the first signal comprises at least one of an enable signal and a disable signal.
17. The method as claimed in claim 16, wherein the method comprises:
generating by the comparator (202), a feedback signal, when the first signal comprises at least one enable signal; and
triggering the relay (108) to a normally closed (NC) condition.
18. The method as claimed in claim 16, wherein the method comprises:
sending by the transistor switch (206) a signal to a DC to DC converter (208), to provide power to at least one 12V load.
19. The method as claimed in claim 18, wherein the method comprises:
switching, the transistor switch (206) OFF, when the first signal is the disable signal;
triggering the relay in NO condition; and
disconnecting the DC to DC converter (108) from the 12V load.