Electrical lead devices
Patent Information
- Application Number
- GB2024018570
- Authority / Receiving Office
- GB · GB
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2026-08-26
Smart Images

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Abstract
Description
TECHNICAL FIELD The present disclosure relates to an electrical lead device, BACKGROUND In modern domestic applications, there is a growing demand for high-power electrical devices and appliances that require substantial current to operate efficiently. Examples of such high-power electrical devices may include, but are not limited to, electric vehicle (EV) chargers, heavy machinery, high-powered tools, and the like. Typically, traditional power supply system, often limited to single-phase configurations, struggle to meet high current demands, especially in residential settings or small commercial settings where standard domestic electrical sockets are used. The traditional power supply system typically comprises multiple electrical sockets arranged in a ring main configuration. Herein, the multiple electrical sockets are fused by a current rating of said power supply system, for example, in the United Kingdom, the current rating is typically 32 amperes. Moreover, each individual electrical socket can supply up to a predefined current rating which is less than the current rating of said power supply system, for example, the predefined current rating of an electrical socket is typically 13 amperes. In practical applications, a plug electrically coupled with the corresponding electrical socket continuously draws current that is less than the predefined current rating (for example, 10 amperes of current) without excessively heating the plug and a cable attached to the plug. However, when currents higher than the predefined current rating are required, the plug, the corresponding electrical socket, and the cable, heats up. Such heating up potentially causes structural heat damage to the plug, the socket, and attached cables over extended periods. This limitation becomes a significant hurdle when attempting to supply power to the high-power electrical devices and appliances, that requires a current that exceeds the predefined current rating of the individual current rating. The high-power electrical devices and appliances cannot be safely and / or effectively connected to a standard electrical socket of the predefined current rating. Consequently, an inability to draw higher currents from the electrical socket restricts the use of high-power electrical devices and appliances in residential settings. Conventionally, one solution to said existing problem is an installation of specialized fused power supplies, such as fused spurs that are directly connected to a main fuse board (namely, an electrical consumer unit). These fused spurs are designed for supplying power to loads that require high currents and are often equipped with specialized outlet devices. For example, a single-phase electrical vehicle (EV) charger is limited to an electrical supply of 7.5 kilowatts (kW). However, while these fused spurs can effectively provide the current required by the load, such fused spurs are typically associated with high installation costs and fixed configurations for electrical sockets, which can limit flexibility and adaptability of the fused spurs to varying power needs. Moreover, second solution involves using single plug charging leads, which may be in a form of an extension / cord. Such single plug charging leads are commonly referred to as granny charging leads. The granny charging leads are backup charging leads for charging EVs. These granny charging leads does not require any special connection means and can be electrically connected to the electrical socket of the predefined current rating. While these granny charging leads are convenient and cost-effective, however they are unable to provide the high currents that are required for charging the EVs efficiently. Moreover, said granny charging leads results in excessively long charging times and a risk of overheating during use. Hence, both the solutions are inefficient and often costly for long term usage. This highlights a critical gap in ability to safely and effectively provide high current to the high-power electrical devices from traditional power supply systems. Therefore, in light of the foregoing discussion, there exists a need to overcome the aforementioned drawbacks. SUMMARY The aim of the present disclosure is to provide a charging device to deliver a high output current by efficiently converting and regulating alternating current (AC) voltage from multiple supply connectors. The aim of the present disclosure is achieved by a charging device as defined in the appended independent claim to which reference is made to. Advantageous features are set out in the appended dependent claims. Throughout the description and claims of this specification, the words "comprise", "include", "have", and "contain" and variations of these words, for example "comprising" and "comprises", mean "including but not limited to", and do not exclude other components, items, integers or steps not explicitly disclosed also to be present. Moreover, the singular encompasses the plural unless the context otherwise requires. In particular, where the indefinite article is used, the specification is to be understood as contemplating plurality as well as singularity, unless the context requires otherwise. BRIEF DESCRIPTION OF THE DRAWINGS FIGs. 1A, IB, and IC illustrate block diagrams of an electrical lead device, in accordance with an embodiment of the present disclosure; FIGs. 2A, 2B, and 2C illustrate different exemplary implementations of an electrical lead device, in accordance with an embodiment of the present disclosure; FIGs. 3A, and 3B illustrate exemplary implementations of a load connector of FIGs. 2A and 2B, in accordance with an embodiment of the present disclosure; FIG. 4 illustrates an exemplary circuit diagram of an electrical lead device, in accordance with an embodiment of the present disclosure; and FIG. 5 illustrates a layout of a printed circuit board assembly (PCBA) for an electrical lead device, in accordance with an embodiment of the present disclosure. DETAILED DESCRIPTION OF EMBODIMENTS The following detailed description illustrates embodiments of the present disclosure and ways in which they can be implemented. Although some modes of carrying out the present disclosure have been disclosed, those skilled in the art would recognize that other embodiments for carrying out or practising the present disclosure are also possible. In an aspect, the present disclosure provides an electrical lead device comprising: a first supply connector and a second supply connector; a housing comprising an electrical circuit; a first input lead that attaches the first supply connector to the housing, which in use, communicates a first alternating current (AC) voltage signal to the electrical circuit; a second input lead that attaches the second supply connector to the housing, which in use, communicates a second AC voltage signal to the electrical circuit; and an output lead that attaches a load connector to the housing, which in use, communicates a third AC voltage signal from the electrical circuit to the load connector, wherein the electrical circuit further comprises an amalgamation point for combining the first AC voltage signal with the second AC voltage signal to provide the third AC voltage signal. The present disclosure provides an aforementioned electrical lead device. Herein, an inclusion of the first supply connector and the second supply connector enables the electrical lead device to accept the first alternating current (AC) voltage signal and the second AC voltage signal from multiple sources. This flexibility facilitates compatibility with various electrical sockets, enhancing usability of the electrical lead device in different environments. Beneficially, the housing of the electrical lead device incorporates the electrical circuit designed to handle combined AC voltage signal efficiently while ensuring safety through built-in protection mechanisms. These features prevent overcurrent and electrical faults, thereby safeguarding both the electrical lead device and connected equipment. Moreover, the design of the first input lead and the second input leads enables the electrical lead device to effectively combine the first AC voltage signal and the second AC voltage signal from the first supply connector and the second supply connector. This aggregation of the first AC voltage signal and the second AC voltage signal at the amalgamation point enables the electrical lead device to deliver the third AC voltage signal, which is essential for powering high-demand equipment or for applications that require substantial electrical power. The output lead then transmits the third AC voltage signal to the load connector, which can be configured to interface with different types of load connections, such as single-phase adapters, industrial sockets, or electric vehicle (EV) chargers. This versatility makes the electrical lead device suitable for a broad range of applications, from domestic to industrial uses. The term "electrical lead device" refers to an electrical apparatus designed to convert, regulate, and deliver an AC voltage signal from one or more input sources to a load. Specifically, the electrical lead device handles the AC voltage signal from the given supply connector, converts it to a regulated output, and combines currents from the given supply connector to provide an increased overall current supply to the load. Throughout the present disclosure, the term "supply connector" refers to an electrical interface that facilitates connection of the electrical lead device to the one or more input sources to receive the AC voltage signal. Herein, the first supply connector and the second supply connector are designed to receive the first AC voltage signal and the second AC voltage signal from a corresponding electrical socket and is electrically coupled to an internal circuitry of the electrical lead device. Notably, the term "given supply connector" encompasses the first supply connector and the second supply connector. Optionally, the given supply connector is implemented as a male plug. Herein, the term "male plug" refers to an electrical connector featuring one or more prongs that are inserted into the corresponding electrical socket. It will be appreciated that specifying the given supply connector as the male plug facilitates compatibility with the corresponding electrical socket providing a robust and secure connection. This ensures the electrical lead device can be easily connected to the one or more input sources while maintaining a reliable and safe electrical interface. The use of the male plug also helps in avoiding accidental disconnections and ensures consistent power delivery to the electrical lead device. Optionally, the given supply connector comprises at least two prongs. Herein, the at least two prongs in the given supply connector are designed to ensure a stable and reliable electrical connection between the electrical lead device and the one or more input sources. Moreover, provision of the at least two prongs can enhance ability of the given supply connector to ensure proper grounding and provide redundancy to minimize the risk of connection failures. In an implementation, the given supply connector with the at least two prongs connect to the corresponding electrical socket that has slots that matches a dimension of the at least two prongs. The at least two prongs facilitate transfer of electrical power from the corresponding electrical socket to the electrical lead device. For example, in an exemplary domestic electrical system, a supply connector with two prongs may be used to deliver standard voltage and standard current. In an exemplary industrial electrical system, a supply connector with three prongs may be used to handle higher power loads or to provide additional functionality, such that a third prong may be used for grounding. A technical effect of the given supply connector with the at least two prongs is that it enhances a reliability and stability of the electrical connection by ensuring accurate power transfer. Optionally, a number of prongs on the given supply connector is based on any one of: a regional standard, a national regulation. Herein, specifications comprised in any one of: the regional standard, the national regulation dictate physical and electrical characteristics of the given supply connector and the corresponding electrical socket to ensure safe and reliable electrical connections. Herein, the term "regional standard" refers to guidelines that are applicable across a specific region, which may encompass multiple countries. The regional standard is often established by regional bodies or organizations to standardize technical requirements and ensure compatibility within that region. For example, European Union (EU) sets regional standards for electrical connectors to ensure uniformity and safety across its member states. The term "national regulation" refers to rules and standards established by an individual country. The national regulation address specific technical and safety requirements applicable within that country and may vary from those of neighbouring countries. For example, United States of America (USA) has its own set of national regulations for electrical connectors, which may differ from those in Canada or the EU. In an instance, in Europe, a type C plug with two cylindrical prongs is commonly used, which aligns with the regional standard set by the International Electrotechnical Commission (IEC) for electrical connections across European countries. In another instance, in United Kingdom (UK), type G plug with three rectangular prongs is commonly used, which aligns the reginal standards set by the British Standard (BS 1363), for electrical connections across UK. In yet another instance, in USA, type B plug with two flat prongs and one round prong (for grounding) are used, which aligns with the regional standard set by the National Electrical Code (NEC), for electrical connections across USA. Beneficially, the standardization of prong configurations ensures that the electrical lead device can be used with a wide range of electrical sockets and the one or more input sources across different regions or countries, enhancing its versatility and user convenience. Additionally, it will be appreciated that adherence to the regional standard and / or the national regulation facilitates compliance with safety requirements, reducing the risk of electrical hazards and ensuring reliable operation. A technical effect of the aforementioned feature is that it simplifies an integration of the electrical lead device into various electrical systems, making the electrical lead device adaptable to diverse market needs and improving overall functionality. This enhances market adaptability of the electrical lead device, ensuring broader acceptance and easier integration into various international markets. Optionally, the number of prongs on the given supply connector is also based on a manufacturer practice. It will be appreciated that use of the at least two prongs can accommodate various power requirements and standards, which makes the electrical lead device adaptable to different settings and applications. Optionally, the given supply connector has a predefined current rating and a predefined voltage rating, wherein the predefined current rating lies in a range of 0 amperes to 32 amperes, and the predefined voltage rating lies in a range of 216 volts to 253 volts. In this regard, the term "predefined current rating" refers to a maximum current (measured in amperes) that the given supply connector and, optionally the corresponding electrical socket can safely handle. The predefined current rating may, for example, lie in a range from 0, 1, 2, 4, 6, 9, 12, 17, 22, or 28 amperes up to 3, 8, 13, 18, 22, 25, 27, 29, 30, or 32 amperes. The term "predefined voltage rating" refers to a maximum voltage (measured in volts) that can be applied to the given supply connector and the corresponding electrical socket without causing insulation breakdown or failure. For example, in the UK, voltage tolerance for a single-phase supply is 230V -6% to +10%. The predefined voltage rating may, for example, lie in a range from 216, 220, 225, or 240 volts to 218, 230, 245, 250, or 253 volts. When designing the electrical lead device, various components (for example, such as voltage regulators, protection devices, isolation relays, and the like) are selected and tested to ensure that the predefined current rating and the predefined voltage rating are met. Hence, particular materials and construction techniques are used for such designs. Moreover, electrical testing could be conducted to confirm that the given supply connector does not overheat, or experience excessive voltage drops when operating at or in proximity to an upper limit of the predefined current rating and / or an upper limit of the predefined voltage rating. It will be appreciated that specifying the predefined current rating and the predefined voltage rating ensures that the given supply connector is adequately rated for the expected operational currents and voltages, thus providing safe and reliable performance. A technical effect of the aforementioned feature is that it is ensured that the given supply connector can handle loads safely and reliably, thus minimizing the risk of overheating and electrical failure. Throughout the present disclosure, the term "housing" refers an enclosure designed to contain and protect internal components of the electrical lead device. Notably, the housing is designed to ensure safe operation, proper assembly, and effective thermal management of the electrical lead device. Herein, the term "electrical circuit" refers to a network of electrical components and connections within the housing that is responsible for processing and managing the AC voltage signal. Optionally, the electrical circuit comprises a Printed Circuit Board (PCB). In this regard, the term "printed circuit board" refers to a platform that is provided for an arrangement and interconnection of electronic components. Examples of such electronic components may include, but are not limited to, protection devices, resistors, capacitors, diodes, and voltage regulator circuits. The inclusion of the PCB in the housing of the electrical lead device provides reliable electrical connections between various components (for example, such as electrical current protection devices, resistors, capacitors, diodes, and voltage regulator circuits). A technical effect of the electrical circuit comprising the PCB is that it enhances overall performance and stability of the electrical lead device by reducing the risk of electrical faults, improving signal integrity, and facilitating easier assembly and maintenance of the electrical lead device. Additionally, the PCBA design can be optimized to manage heat dissipation and ensure that the electrical lead device operates within safe thermal limits. Throughout the present disclosure, the term "input lead" refers to an electrical conductor that provides a pathway for transmission of the AC voltage signal from the given supply connector to a circuit within the housing. Herein, the first input lead functions by establishing a physical and electrical connection between the first supply connector and the housing of the electrical lead device. When the first supply connector is connected to the corresponding electrical socket, the first AC voltage signal flows through the first input lead to the electrical circuit. This setup enables the electrical lead device to manage the first AC voltage signal efficiently, facilitating subsequent steps such as voltage conversion and regulation. Herein, the first input lead is designed to handle the first AC voltage signal required for the electrical lead device to operate effectively and safely. It will be appreciated that the first input lead ensures effective transmission of the first AC voltage signal from the first supply connector to the electrical circuit hence facilitates performance of the electrical lead device. Throughout the present disclosure, when the second supply connector is connected into the corresponding electrical socket, the second AC voltage signal flows through the second input lead to the electrical circuit. It will be appreciated that the second input lead ensures effective transmission of the second AC voltage signal from the second supply connector to the electrical circuit, hence facilitates performance of the electrical lead device. In the electrical lead device, each input lead is designed to ensure reliable and efficient delivery of an electrical current from the given supply connector to the associated components, facilitating proper operation and protection of the electrical lead device. Throughout the present disclosure, the term "output lead" refers to an electrical conductor that provides electrical connection between an amalgamation point and a load connector. Notably, the output lead is configured in such a manner that current induced by the third AC voltage signal is supplied to the load connector from the given supply connector. This ensures a stable and adequate power supply, even when the current that is output from the output lead is a combination of currents supplied from the first supply connector and the second supply connector. Herein, the third AC voltage signal refers to an AC voltage signal that results from the combination of the first AC voltage signal and the second AC voltage signal. Herein, the term "load connector" refers to an electrical terminal that is designed to electrically connect a load to the electrical lead device. The load connector is integral to the functionality of the electrical lead device, enabling the distribution of the combined current to the intended load efficiently and reliably. Optionally, a given input lead and the output lead are flexible. In this regard, the term "given input lead" encompasses both the first input lead and the second input lead. The flexibility of the given input lead enables maneuvering around obstacles, hence facilitating a secure and stable connection to the one or more input sources without putting stress on connections. Herein, the output lead connects the electrical lead device to the load connector. Thus, the flexibility of the output lead ensures that there is no undue wear or stress when the electrical lead device is in use. A technical effect of the flexibility of the given input lead and the output lead is that it enhances an ease of use, safety, and reliability of the electrical lead device, as it increases longevity of the electrical lead device by reducing wear and tear at the connection points. Optionally, current induced by the third AC voltage signal lies in a range of 0 to 32 amperes. The current may, for example, lie in a range from 0, 1, 2, 4, 6, 8, 12, 16, 20, 25, or 30 amperes up to 3, 9, 14, 18, 22, 25, 28, 30, 31, or 32 amperes. In this regard, if each of the first supply connector and the second supply connector provide up to 16 amperes of current, the current induced by the third AC voltage signal could be up to 32 amperes, effectively combining the inputs while staying within the designed operational limits of the electrical lead device. Optionally, a length of a given lead lies in a range of 0.2 meter to 1 meter, and a cross-sectional area of the given lead lies in a range of 1 square millimeter to 5 square millimeters. The length of the given input lead is specified to ensure that it is long enough to connect various components of the electrical lead device without excessive strain, while also being short enough to minimize potential issues such as signal degradation or power loss. The length of the given input lead may, for example, lie in a range from 0.2, 0.3, 0.5, 0.7, or 0.9 meter up to 0.3, 0.6, 0.8, 0.9, or 1 meter. Similarly, the cross-sectional area of the given input lead is specified based on the expected electrical load. Notably, wires with a larger cross-sectional area reduce resistance and prevents overheating hence ensures reliable operation. The cross-sectional area of the given input lead may, for example, lie in a range from 1, 1.5, 2.0, 2.5, 3, or 4 square millimeters up to 1.5, 3.5, 4.5, or 5 square millimeters. It will be appreciated that the specified length and cross-sectional area ensures that the given input lead can handle the required current without excessive voltage drop or overheating, which is essential for maintaining performance and safety of the electrical lead device. Additionally, the specified range enables for flexibility in the design and placement of the electrical lead device, accommodating different configurations and ensuring that the electrical lead device can be adapted to various installation scenarios without compromising performance. A technical effect of defining the ranges of the length and the cross-sectional area is that it enhances durability and longevity of the electrical lead device by minimizing the risk of failure of the given lead and the output lead due to overheating or mechanical stress, thus ensuring efficient current handling, minimal voltage drop, and preventing overheating. Optionally, a length of the output lead lies in a range of 0.2 meter to 1 meter, and a cross-sectional area of the output lead lies in a range of 2 square millimeters to 7 square millimeters. The length of the output lead ease of coupling the electrical lead device to the load. The length of the output lead may, for example, lie in a range from 0.2, 0.3, 0.5, 0.7, or 0.9 meter up to 0.3, 0.6, 0.8, 0.9, or 1 meter. The cross-sectional area of the output lead influences an ability to handle the electrical current without significant losses or risks of overheating. The cross-sectional area of the output lead may, for example, lie in a range from 2, 2.5, 3.0, 3.5, 4, 5, or 6 square millimeters up to 2.5, 4.5, 5.0, 6, or 7 square millimeters. It will be appreciated that specifying the ranges of the length and the cross-sectional area of the output lead ensures adequate current capacity and minimizes voltage drop. Additionally, it will be appreciated that a design of the output lead enhances power efficiency, reduces heat buildup, and improves overall reliability and safety of the electrical lead device. Furthermore, specifying the length and the cross-sectional area of the output lead offers flexible installation options while maintaining robust performance across various operational conditions. A technical effect of the aforementioned feature is that defining the ranges of the length and the cross-sectional area of the output lead ensures efficient combination of input currents from multiple leads into a single output lead, optimizing delivery high current to the load while minimizing performance losses and maintaining reliability, when in use. Optionally, the load connector is implemented as any one of: a singlephase charging adapter, a female plug, an industrial socket connectable to a plant machinery. In this regard, the term "single-phase charging adapter" refers to an electrical connector that enables the electrical lead device to interface with and deliver current to standard residential or light commercial electrical systems operating on single-phase AC voltage. The single-phase charging adapter facilitates safe and efficient transfer of the electrical current from the electrical lead device to the connected load, for example, such as an electric vehicle. The term "female plug" refers to an electrical connector designed to receive the male plug from standard electrical equipment (for example, such as power tools, appliances, electronic devices and the like). Herein, the female plug provides a reliable and adaptable connection point, which enables the electrical lead device to supply the current to various types of loads (for example, such as lighting systems, computers, house-hold devices and the like). The term "industrial socket" refers to an electrical connector designed to interface with high-power machinery, for example, such as an induction motor, a compressor, a conveyor, and the like. Herein, the load connector of the electrical lead device is designed in such a manner that said load connector supports electrical coupling with different types of loads. A technical effect of the aforementioned is that the electrical lead device achieves broad compatibility and versatility by accommodating various types of load connectors. This enables efficient delivery of the AC voltage signal to diverse loads, ranging from residential and commercial systems to high-power industrial machinery. Optionally, when the load connector is implemented as the single-phase charger adapter that is electrically coupled to an electric vehicle (EV), the output lead is electrically coupled with a control box to provide the third AC voltage signal to the EV via the single-phase charger adapter, wherein the single-phase charging adapter is electrically coupled with the control box via a connecting lead. In this regard, the term "control box" refers to an external enclosure that houses and protects various electronic components. For example, the control box may include, but is not limited to, a processor, a control circuit, an electrical current protection device, and the like. Herein, the term "connecting lead" refers to an electrical cable that provides physical and electrical connection between the singlephase charging adapter and the control box. Herein, the control box is responsible for controlling power delivery, ensuring safe operation, and interfacing with various load connectors. The control box includes the control circuit that regulates the distribution of the third AC voltage signal to the load connector. The control circuit then adjusts output based on inputs from the given supply connector, ensuring that required voltage and current are delivered according to the load requirements. It will be appreciated that coupling the load connector with the control box ensures precise control and regulation of the charging process, enhancing safety and efficiency of the power delivery to the EV. Additionally, it will be appreciated that coupling the single-phase charging adapter with the control box via the connecting lead allows for flexible and secure connections, accommodating various models of EV and charging requirements. Hence, the control box further comprises electrical components that provide overcurrent protection, temperature monitoring, and communication protocols, further improving the reliability and performance of a charging system of the EV. A technical effect of the aforementioned configuration is that it ensures safe and efficient power delivery from the electrical lead device to the EV hence enhances the reliability of the charging process. Throughout the present disclosure, the term "amalgamation point" refers to a centralized electrical junction within the electrical lead device where the current induced by the AC voltage signal from the one or more input sources converge. Herein, the amalgamation point serves as a single output connection from which the third AC voltage signal is delivered to the load connector. The amalgamation point facilitates aggregation of current induced by the AC voltage signal corresponding to at least one of: the first supply connector, the second supply connector, which facilitates the electrical lead device to supply a higher overall current to the load connector while ensuring that electrical flow is consistent and properly managed. It will be appreciated that the amalgamation point optimizes delivery of the AC voltage signal and enhances the efficiency of the electrical lead device by effectively combining and managing the output from multiple input sources. Optionally, the amalgamation point is arranged on the PCB. In this regard, arranging the amalgamation point on the PCB ensures that the first AC voltage signal and the second AC voltage signal from the first supply connector and the second supply connector, respectively, are combined with minimal interference. This approach optimizes signal routing and reduces noise, which is essential for maintaining high performance and reliability in the electrical lead device. It will be appreciated that the arrangement of the amalgamation point directly on the PCB minimizes number of external connections and potential failure points. A technical effect of the aforementioned feature is that the amalgamation point being arranged on the PCB enhances overall performance and reliability of the electrical lead device by ensuring precise AC voltage signal integration, reducing interference, and improving thermal management. This configuration leads to more stable and efficient operation, minimizes potential points of failure, and simplifies the manufacturing process hence results in a more compact and reliable device. Optionally, the electrical lead device further comprises a first electrical current protection device electrically coupled to the first input lead and a second electrical current protection device electrically coupled to the second input lead. In this regard, the term "electrical current protection device" refers to an electrical component integrated into the PCB that is designed to detect and respond to faults. Examples of a given electrical current protection device may include, but are not limited to, a fuse, a circuit breaker, and an earth fault detector. Notably, the term given electrical current protection device encompasses the first electrical current protection device and the second electrical current protection device. Specifically, the given electrical current protection device monitors the AC voltage signal from the given supply connector, and when the given electrical current protection device detects that incoming AC voltage signal exceeds a predefined safe operating limit (SOL), then the given electrical current protection device limits the AC voltage signal to prevent damage to the electrical lead device. Herein, the predefined SOL of the given electrical current protection device is the maximum value of a specific parameter (like current, voltage, temperature, etc.) that the electrical lead device can safely handle without triggering its protective function. It will be appreciated that adhering to the predefined SOL enhances durability of the electrical lead device and safeguards against potential electrical faults. Optionally, the fault comprises any one of: an overcurrent fault, an earth fault. In this regard, the term "overcurrent fault" refers to a condition where a current induced due to the AC voltage signal exceeds the predefined safe operating limit. Typically, the overcurrent fault may occur due to short circuits, excessive load, equipment malfunction, and the like. Herein, the term "earth fault" refers to an unintended electrical connection between a live conductor and a ground (earth). The earth fault can lead to dangerous situations, for example, such as electric shocks, equipment failure, and similar. Herein, the first electrical current protection device and the second electrical current protection device ensure safety of the electrical lead device by mitigating potential damage and reducing risk of hazards. Moreover, the given electrical current protection device monitors the current flowing through the electrical lead device and disconnects the given supply connector if the current exceeds the predefined safe operating limit. Beneficially, such proactive management of the electrical lead device based on occurrence of the fault safeguards the electrical lead device while ensuring compliance with safety standards. This reduces the need for maintenance and minimizes operational downtime of the electrical lead device. A technical effect is that incorporating the given electrical current protection device to detect and respond to the fault, enhances an overall safety and operational integrity of the electrical lead device. Optionally, the electrical lead device further comprises a first voltage regulator circuit electrically coupled to the first electrical current protection device and a second voltage regulator circuit electrically coupled to the second electrical current protection device. In this regard, the term "voltage regulator circuit" refers to an electrical circuit designed to convert the first magnitude of the AC voltage signal to a second magnitude of the DC voltage signal. The given voltage regulator circuit ensures that the second magnitude of the DC voltage signal remains constant and within predefined limits, regardless of variations in the first magnitude of the AC voltage signal or load conditions. Herein, the term "given voltage regulator circuit" encompasses the first voltage regulator circuit and the second voltage regulator. In an implementation, when the electrical lead device is connected to the electrical socket, the first magnitude of the AC voltage signal (for example, such as 240V AC) is received from the electrical socket corresponding to the given supply connector. When the electrical lead device is in use, the AC voltage signal passes through the given electrical current protection device to the given voltage regulator circuit, which converts the AC voltage signal into a pulsating DC voltage signal. The process involves using diodes to allow current to flow only in one direction, effectively blocking a negative halfcycle of an AC waveform of the AC voltage signal. The pulsating DC voltage signal is then filtered using a passive LC filter configuration. This filtering process reduces ripples in the DC voltage signal, providing a more stable and continuous DC voltage signal. Then, the given voltage regulator circuit adjusts the DC voltage signal to a specific, stable output level, which is the second magnitude of the DC voltage signal. This regulated DC output is necessary for the proper functioning of downstream components and for ensuring safety. It will be appreciated that the process ensures that the high input AC voltage signal is transformed into a precise and stable DC voltage signal suitable for operation of the electrical lead device. By regulating the AC voltage signal to a lower and consistent level, the electrical lead device is protected from potential damage caused by excess voltage and operates efficiently and safely. A technical effect of the aforementioned feature is that incorporating separate electrical current protection devices and voltage regulator circuits for each supply connector enhances overall robustness and safety of the electrical lead device. Optionally, the housing further comprises a first isolation relay and a second isolation relay electrically coupled to the corresponding first supply connector and the second supply connector, respectively, respective outputs of the first isolation relay and the second isolation relay being connected to the amalgamation point (P); wherein activation of the first isolation relay communicates the first AC voltage signal and second AC voltage signal, respectively, to the amalgamation point. In this regard, the term "isolation relay" refers to an electromechanical switching device used to electrically isolate the given voltage regulator circuit (i.e., low voltage) from the amalgamation point (i.e., high voltage). Herein, a given isolation relay is connected to an output of the given voltage regulator circuit and said given isolation relay is responsible for controlling the transfer of AC voltage signal to the amalgamation point. Herein, the term "given isolation relay" encompasses the first isolation relay and the second isolation relay. Moreover, the given isolation relay ensures that electrical connections between the given supply connector, the given voltage regulator circuit, and the amalgamation point are managed safely, thus providing protection against faults and preventing interference between input received from the given supply connector. It will be appreciated that employing the given isolation relay facilitates safe and efficient aggregation of the alternating current from the one or more input sources, thereby enables the electrical lead device to deliver a higher overall alternating current to the load while maintaining reliable operation and protection. Optionally, the housing further comprises a thermistor protection device for isolating the load connector from the third AC voltage signal. The thermistor protection device may be located between the amalgamation point and the output lead attached to the housing. Optionally, the thermistor protection device may be located between the first and / or second input lead and the amalgamation point. Optionally, the thermistor protection device may be located within a plug arranged on the first input lead and / or located within a plug arranged on the second input lead. In use, the thermistor protection device has a resistance that changes in accordance with device's temperature. Therefore, the resistance will rise at a predetermined temperature within either the housing or plug(s) to a level which will isolate (switch off) the third AC voltage from the load connector. Optionally, the given supply connector is connected to a corresponding input channel on the PCB, wherein the term "input channel" refers to a conductive trace on the PCB which electrically couples the given input lead to corresponding components within the housing. When the given supply connector receives a given AC voltage signal (namely, the first AC voltage signal and the second AC voltage signal), the corresponding given voltage regulator converts the first magnitude of the first AC voltage signal to the second magnitude of the DC voltage signal. In this regard, when the second magnitude of the DC voltage lies in a predefined range, then the second magnitude of the DC voltage signal activates the corresponding given isolation relay. Then, the given isolation relay allows the flow of the given AC voltage signal towards the amalgamation point. Moreover, there is an electrical current at the amalgamation point of the electrical lead device that results from individual contributions of at least one of: the first isolation relay, the second isolation relay. Notably, when both the first supply connector and the second supply connector are in operation, the current that is output from the amalgamation point is effectively a sum of the currents that are induced by the first AC voltage signal and the second AC voltage signal, given that both the first and second isolation relays are active and operational. Optionally, predefined range is from 4.5 volts to 5.5 volts. The predefined range may, for example, lie from 4.5, 4.51, 4.53, 4.55, or 5.0 volts up to 4.54, 5.0, 5.2, 5.4, or 5.5 volts. It will be appreciated that defining the range ensures that when the second magnitude of the DC voltage signal lies within the predefined range, the current induced by the given AC voltage signal of the corresponding given supply connector is allowed to flow towards the load connector. This reduces a risk of malfunction and enhance overall safety of the electrical lead device. A technical effect of the aforementioned feature is that the predefined range enhances operational reliability of the electrical lead device by ensuring that the DC voltage signal consistently remains within a controlled and safe threshold. In a first example, when the electrical lead device is in use, the first supply connector connects a corresponding electrical socket with a current rating of 13 amperes. In this regard, the first voltage regulator circuit corresponding to the first supply connector converts a first magnitude of the first AC voltage signal of 240V to a second magnitude of the DC voltage signal of 4.5V. The second magnitude of the DC voltage signal with a value of 4.5V DC then activates the first isolation relay. As a result, the first isolation relay allows the current of 13 amperes induced by the first AC voltage signal towards the amalgamation point. Continuing in reference with the first example, when the electrical lead device is in use, the second supply connector connects a corresponding electrical socket with a current rating of 15 amperes. Herein, the second voltage regulator circuit corresponding to the second supply connector converts a first magnitude of the second AC voltage signal of 240V to a second magnitude of the DC voltage signal of 5V. The second magnitude of the DC voltage signal with a value of 5V DC then activates the second isolation relay. As a result, the second isolation relay allows the current of 15 amperes induced by the second AC voltage signal towards the amalgamation point. Hence, the total current that is output from the amalgamation point may be 28 amperes, provided both the first isolation relay and the second isolation relay are operational and functioning correctly. A technical effect of the housing further comprising the first isolation relay and the second isolation relay is that it enables the electrical lead device to safely and efficiently aggregate the current from multiple supply connectors, enhancing overall power delivery and ensuring reliable operation by isolating and managing high-current signals. Optionally, nonactivation of the second isolation relay does not communicate the second AC voltage signal from the amalgamation point, to the second supply connector. Alternatively, nonactivation of the first isolation relay does not communicate the first AC voltage signal from the amalgamation point, to the first supply connector. In this regard, the second isolation relay is responsible for managing the flow of the current induced by the second AC voltage signal from the second supply connector to the amalgamation point. Herein, when the second isolation relay is not activated, the second isolation relay effectively isolates path of the current between the amalgamation point and the second supply connector. This isolation prevents unintended and unsafe transmission of the given AC voltage signal from passing through towards the amalgamation point. This mechanism helps in managing power distribution and protecting the electrical circuit by preventing unintended interactions between voltage sources. This could be necessary in scenarios where only one of the first supply connector or the second supply connector should be active at a time, or where certain conditions must be met before the given AC voltage signal is delivered to the amalgamation point. Additionally, ability to deactivate the second isolation relay, and optionally the first isolation relay, enables the electrical lead device to adapt to different operational conditions. A technical effect of such nonactivation of the second isolation relay, and optionally the first isolation relay is that it enhances an overall performance and safety of the electrical lead device by controlling flow of the given AC voltage signal, which improves operational flexibility and reduces a risk of faults and interference. For example, the second supply connector may not be in use. Hence, the second relay may be nonactive. Thus, only the first supply connector may be in use, hence the first isolation may be active and supplies the first AC voltage signal to the amalgamation point. Optionally, the first isolation relay and the second isolation relay each comprises a normally open (N / O) relay. In this regard, term "normally open relay" refers to an electrical switching device with normally open contacts in its unpowered state, i.e., when the electrical lead device is not in use. Herein, the first isolation relay comprises a first N / O relay, and the second isolation relay comprises a second N / O relay. Each N / O relay comprises a coil, which upon getting energized when the electrical lead device is in use, closes the normally open contacts to allow transfer of current induced by the AC voltage signal of the given supply connector towards the output lead. Alternatively, when the coil of the N / O relay is not energized, there is no transfer of current between the given supply connector towards the output lead. Hence, the given isolation relay ensures that the current induced by the given AC voltage signal is optionally supplied when the second magnitude of the DC voltage signal lies in the predefined range, which closes the normally open contacts of the N / O relay. It will be appreciated that the use of the N / O relay, ensures that the electrical lead device can effectively utilize a rated current capacity of each input channel. Additionally, using the N / O relay enables flexible and scalable power distribution, accommodating varying load requirements while maintaining operational safety. A technical effect of the given isolation relay comprising the N / O relay is that when the coil is not energized, the given isolation relay maintains their respective electrical paths open, preventing any electrical connection between the given supply connector and the amalgamation point. This enhances control and safety of the electrical lead device by preventing unintended flow of the given AC voltage signal and maintaining reliable operation. Furthermore, when the first input lead is connected to an electrical power supply, the associated first N / O relay closes, thereby providing an electrical path from the first supply connector to the amalgamation point (P). The second N / O relay remains open, thereby breaking the electrical path from the amalgamation point (P) to the unconnected second supply connector. This has an effect of isolating the exposed one or more prongs of the second supply connector from the electrical power supply available at the amalgamation point (P). Optionally, the electrical lead device further comprises a first and second passive inductor-capacitor (LC) filter configuration are electrically coupled to the first and second voltage regulator circuit, respectively; wherein, the first and second passive LC filter configuration are electrically coupled to activation coils for the first isolation relay and the second isolation relay, respectively. In this regard, the term "given passive LC filter configuration" encompasses the first passive LC filter configuration and the second passive LC filter configuration. Herein, the term "passive inductor-capacitor (LC) filter" refers to a passive electronic component comprising an inductor and a capacitor arranged to filter the first AC voltage signal and / or the second AC voltage signal. Hence, high-frequency noise and ripple is filtered from optionally the second magnitude of the DC voltage signal, thus ensuring a smooth and stable output. Herein, the given passive LC filter configuration is electrically coupled between its corresponding given voltage regulator circuit and corresponding activation coils of the given isolation relay. This means that after the given voltage regulator circuit converts the AC voltage signal to the DC voltage signal, the DC voltage signal passes through the given LC filter configuration before reaching the given isolation relay. The given LC filter configuration is used to protect the given voltage regulator circuit and the given isolation relay from transients and spikes that could potentially damage components (for example, such as the given isolation relay, the amalgamation point, the output lead). It will be appreciated that the use of the given passive LC filter configuration can prolong a lifespan of connected components by preventing potential damage from electrical noise and improving efficiency of the power delivery to the load. Additionally, it will be appreciated that the reduced noise and ripple results in lower heat generation within the electrical lead device, hence enhancing thermal performance and reliability of the electrical lead device. A technical effect of the aforementioned feature is that the electrical lead device achieves enhanced power quality and stability by reducing high-frequency noise and ripples, resulting in more reliable operation and protection of the components. Optionally, the electrical lead device further comprises an at least one additional supply connector with corresponding additional electrical current protection device, additional voltage regulator circuit, additional isolation relay, additional passive LC filter configuration, and additional input lead, such that when in use, the current is greater than 32 amperes. In this regard, when the electrical lead device is equipped with the at least one additional supply connector, each supply connector is integrated with its own electrical current protection device, the voltage regulator, the isolation relay, the LC passive filter configuration, and the input lead. These components work together to manage and regulate the current supplied through the additional supply connector, in a similar manner as explained in detail above for the given supply connector. In this regard, the combined capacity of the given supply connector allows the current to exceed 32 amperes when in use. It will be appreciated that integrating the at least one additional supply connector with dedicated additional electrical current protection device, the additional voltage regulator, the additional isolation relay, the additional passive LC filter configuration, and the additional input lead, enhances ability of the electrical lead device to handle high-power loads efficiently. Herein, the additional voltage regulator, the additional isolation relay, the additional passive LC filter configuration, and the additional input lead could be similar as or different from the given voltage regulator, the given isolation relay, the given passive LC filter configuration, and the given input lead. Moreover, this configuration enables the electrical lead device to deliver a combined current exceeding 32 amperes, accommodating demanding loads such as industrial machinery, high-capacity charging systems and the like. Additionally, the electrical lead device reduces a risk of overheating and potential damage when it is used for high-power loads, hence improving an overall reliability and safety. In an example, when the electrical lead device is in use and supplying power to a load connector electrically coupled with a low-power load, the first supply connector may be in use. The current induced by the AC voltage signal corresponding to the first supply connector may be 8 amperes. In another example, when the electrical lead device is in use and supplying power to a load connector electrically coupled to a medium-power load, the second supply connector may be in use. The current induced by the AC voltage signal corresponding to the second supply connector may be 12 amperes. In yet another example, when the electrical lead device is in use and supplying power to a load connector electrically coupled to a high-power load, a third supply connector may be in use. The current induced by the AC voltage signal corresponding to the third supply connector may be 15 amperes. Hence, the combined current received from the amalgamation point is 35 amperes, ensuring that the electrical lead device can deliver sufficient current for demanding loads while exceeding 32 amperes. A technical effect of the aforementioned feature is that the electrical lead device can handle high-power loads efficiently by exceeding 32 amperes of the output signal, ensuring safe operation under demanding conditions and reducing the risk of overheating or damage. DETAILED DESCRIPTION OF THE DRAWINGS Referring to FIGs. 1A, IB, and IC, illustrated are block diagrams of an electrical lead device 100, in accordance with an embodiment of the present disclosure. With reference to FIG. 1A, the electrical lead device 100 comprises: a first supply connector 102A, a second supply connector 102B; a housing 104, a first input lead 106A, a second input lead 106B, and an output lead 108. The housing 104 comprises an electrical circuit 110. Herein, the first input lead 106A attaches the first supply connector 102A to the housing 104, which in use, communicates a first alternating current (AC) voltage signal to the electrical circuit 110. Similarly, the second input lead 106B attaches the second supply connector 102B to the housing 104, which in use, communicates a second AC voltage signal to the electrical circuit 110. The output lead 108 attaches a load connector 112 to the housing 104, which in use, communicates a third AC voltage signal from the electrical circuit 110 to the load connector 112. Herein, the electrical circuit 110 further comprises an amalgamation point P for combining the first AC voltage signal with the second AC voltage signal to provide the third AC voltage signal. With reference to FIG. IB, the electrical lead device 100 further comprises: a first electrical current protection device 114A and a second electrical current protection device 114B corresponding to the first input lead 106A and the second input lead 106B respectively. Optionally, the electrical lead device 100 further comprise a first voltage regulator circuit 116A electrically coupled to the first electrical current protection device 114A and a second voltage regulator circuit 116B electrically coupled to the second electrical current protection device 114B. Optionally, the housing 104 further comprises a first isolation relay 118A and a second isolation relay 118B electrically coupled to the corresponding first supply connector 102A and the second supply connector 102B, respectively. Respective outputs of the first isolation relay 118A and the second isolation relay 118B are connected to the amalgamation point P; wherein activation of the first isolation relay 118A communicates the first alternating current (AC) voltage signal to the amalgamation point P. Optionally, the electrical lead device 100 further comprises a first passive inductor-capacitor (LC) filter configuration 120A and a second passive LC filter configuration 120B are electrically coupled to the first voltage regulator circuit 116A and second voltage regulator circuit 116B, respectively; wherein, the first passive LC filter configuration 120A and the second passive LC filter configuration 120B are electrically coupled to activation coils for the first isolation relay 118A and the second isolation relay 118B, respectively. With reference to FIG. IC, optionally, the electrical lead device 100 further comprises at least one additional supply connector 102C with corresponding additional electrical current protection device 114C, additional voltage regulator circuit 116C, additional isolation relay 118C, additional passive LC filter 120C, and additional input lead 106C, such that when the electrical lead device 100 is in use, the current may be greater than 32 amperes. FIGS. 1A-C are merely examples, which should not unduly limit the scope of the claims herein. A person skilled in the art will recognize many variations, alternatives, and modifications of embodiments of the present disclosure. Referring to FIGs. 2A, 2B, and 2C, illustrated are different exemplary implementations of an electrical lead, in accordance with an embodiment of the present disclosure. With reference to FIGs. 2A-2C, the electrical lead device 200 comprises a first supply connector 202A, a second supply connector 202B, a housing 204, a first input lead 206A, a second input lead 206B and an output lead 208 that attaches a load connector 210. Herein, the first supply connector 202A and the second supply connector 202B are implemented as a male plug. The housing 204 comprises an electrical circuit 212, a first isolation relay 214A, and a second isolation relay 214B corresponding to the first supply connector 202A and the second supply connector 202B, respectively. Optionally, the load connector 210 is implemented as a single-phase charging adapter 216, a female supply connector 218, or an industrial socket connectable to a plant machinery. Herein, a length and a cross-sectional area of the first input lead 206A and the second input lead 206B lies in a range of 0.2 meter to 1 meter, and 1 square millimeter to 5 square millimeters, respectively. Herein, a length of the output lead 208 lies in a range of 0.2 meter to 1 meter, and a cross-sectional area of the output lead 208 lies in a range of 2 square millimeters to 7 square millimeters. With reference to FIG. 2A, the first supply connector 202A and the second supply connector 202B comprise at least two prongs (depicted as two prongs 220A and 220B of the first supply connector 202A, and two prongs 222A and 222B of the second supply connector 202B). Herein, the length and cross-sectional area of the first input lead 206A and the second input 206B lead is 0.5 meters and 2.5 square millimeters, respectively. The length and cross-sectional area of the output lead 208 is 0.5 meters and 6 square millimeters, respectively. With reference to FIG. 2B, the first supply connector 202A and the second supply connector 202B comprises at least three prongs (depicted as three prongs 224A, 224B, and 224C of the first supply connector 202A, and three prongs 226A, 226B, and 226C of the second supply connector 202B). Herein, the length and cross-sectional area of the first input lead 206A and the second input lead 206B is 0.5 meters and 1.5 square millimeters, respectively. The length and cross-sectional area of the output lead 208 is 0.5 meters and 2.5 square millimeters, respectively. With reference to FIG. 2C, the electrical lead device 200 is shown to have the female supply connector 218, wherein the female supply connector 218 is specifically an IP44 type configuration. FIGs. 2A-2C are merely examples, which should not unduly limit the scope of the claims herein. A person skilled in the art will recognize many variations, alternatives, and modifications of embodiments of the present disclosure. Referring to FIGs. 3A and 3B, there is shown an exemplary implementation of a load connector 210 of FIGs. 2A and 2B, in accordance with an embodiment of the present disclosure. Herein, the load connector 210 is implemented as the single-phase charger adapter 216 that is electrically coupled to an electric vehicle (EV). In FIG. 3A, the electrical lead device 200 implementation of FIG. 2A is considered, wherein the first supply connector 202A and the second supply connector 202B comprise two prongs 220A and 220B of the first supply connecter 202A, and two prongs 222A and 222B of the second supply connecter 202B. In FIG. 3B, the electrical lead device 200 implementation of FIG. 2B is considered, wherein the first supply connector 202A and the second supply connector 202B comprise three prongs 224A, 224B, and 224C of the first supply connecter 202A, and three prongs 226A, 226B, and 226C of the second supply connecter 202B. In both FIGs. 3A and 3B, the output lead 208 is electrically coupled with a control box 302 to provide the current induced by the AC voltage signal to the EV via the single-phase charger adapter 216, wherein the single-phase charging adapter 216 is electrically coupled with the control box 302 via a connecting lead 304. FIGs. 3A and 3B are merely examples, which should not unduly limit the scope of the claims herein. A person skilled in the art will recognize many variations, alternatives, and modifications of embodiments of the present disclosure. Referring to FIG. 4, illustrated is an exemplary circuit diagram 400 of an electrical lead device, in accordance with an embodiment of the present disclosure. The exemplary circuit diagram comprises a first isolation relay 402A, and a second isolation relay 402B, which are comprised in a housing. Herein, the PCB comprises a first electrical current protection device 404A, a second electrical current protection device 404B, a first voltage regulator circuit 406A, a second voltage regulator circuit 406B, a first passive inductor-capacitor (LC) filter configuration 408A and a second passive LC filter configuration 408B. Herein, the first protection device 404A, the second protection device 404B, the first voltage regulator circuit 406A, and the second voltage regulator circuit 406B correspond to a first supply connector and / or a second supply connector respectively, wherein the first voltage regulator circuit 406A and the second voltage regulator circuit 406B are electrically coupled with the corresponding first electrical current protection device 404A and the second electrical current protection device 404B, and corresponding to the first supply connector and / or the second supply connector, respectively. Herein, the first isolation relay 402A and the second isolation relay 402B are electrically coupled with the first voltage regulator circuit 406A and the second voltage regulator circuit 406B, respectively, wherein respective outputs of the first isolation relay 402A and the second isolation relay 402B are connected to an amalgamation point P. In this regard, the amalgamation point P combines a first alternating current voltage signal with a second alternating current voltage signal to provide a third alternating current voltage signal to a load (shown as L). FIG. 4 is merely an example, which should not unduly limit the scope of the claims herein. A person skilled in the art will recognize many variations, alternatives, and modifications of embodiments of the present disclosure. Referring to FIG. 5, illustrated is a layout of a printed circuit board (PCB) 500 for an electrical lead device, comprising the exemplary circuit diagram illustrated in Fig. 4. As shown, the PCB is part of an overall Printed Circuit Board Assembly (PCBA). The layout of the PCBA comprises an arrangement of components upon the PCB 500 to deliver a high current electrical output. Herein, the PCBA comprises a first supply connector 502A, a second supply connector 502B, a first electrical current protection device 504A adjacent to the first supply connector 502A, a second electrical current protection device 504B adjacent to the second supply connector 502B, a first voltage regulator circuit 506A, a second voltage regulator circuit 506B, a first passive inductor-capacitor 5 (LC) filter configuration, and a second LC filter configuration. FIG. 5 is merely an example, which should not unduly limit the scope of the claims herein. A person skilled in the art will recognize many variations, alternatives, and modifications of embodiments of the present disclosure.
Claims
What is claimed is:
1. An electrical lead device (100, 200) comprising:a first supply connector (102A, 202A, 502A) and a second supply connector (102B, 202B, 502B);a housing (104, 204) comprising an electrical circuit (110, 212);a first input lead (106A, 206A) that attaches the first supply connector to the housing, which in use, communicates a first alternating current (AC) voltage signal to the electrical circuit;a second input lead (106B, 206B) that attaches the second supply connector to the housing, which in use, communicates a second AC voltage signal to the electrical circuit; andan output lead (108, 208) that attaches a load connector (112, 210) to the housing, which in use, communicates a third AC voltage signal from the electrical circuit to the load connector,wherein the electrical circuit further comprises an amalgamation point (P) for combining the first AC voltage signal with the second AC voltage signal to provide the third AC voltage signal.
2. An electrical lead device (100, 200) of any claim 1, further comprising a first electrical current protection device (114A, 404A, 504A) electrically coupled to the first input lead (106A, 206A) and a second electrical current protection device (114B, 404B, 504B) electrically coupled to the second input lead.
3. An electrical lead device (100, 200) of any of the preceding claims, further comprising a first voltage regulator circuit (116A, 406A, 506A) electrically coupled to the first electrical current protection device (114A, 404A, 504A) and a second voltage regulator circuit (116B, 406B, 506B) electrically coupled to the second electrical current protection device.
4. An electrical lead device (100, 200) of any of the preceding claims, wherein the housing (104, 204) further comprises a first isolation relay (118A, 214A, 402A) and a second isolation relay (118B, 214B, 402B) electrically coupled to the corresponding first supply connector (102A, 202A, 502A) and the second supply connector, respectively, respective outputs of the first isolation relay and the second isolation relay being connected to the amalgamation point (P); wherein activation of the first isolation relay communicates the first AC voltage signal and second AC voltage signal, respectively, to the amalgamation point.
5. An electrical lead device (100, 200) according to claim 4, wherein nonactivation of the second isolation relay (118B, 214B, 402B) does not communicate the second AC voltage signal from the amalgamation point (P), to the second supply connector.
6. An electrical lead device (100, 200) of claim 4 or claim 5, wherein the first isolation relay (118A, 214A, 402A) and the second isolation relay (118B, 214B, 402B) each comprises a normally open (N / O) relay.
7. An electrical lead device (100, 200) of any one of the preceding claims, further comprising a first (120A, 408A) and second passive inductor-capacitor (LC) filter configuration (120B, 408B) are electrically coupled to the first and second voltage regulator circuit, respectively; wherein, the first and second passive LC filter configuration are electrically coupled to activation coils for the first isolation relay (118A, 214A, 402A) and the second isolation relay (118B, 214B, 402B), respectively.
8. An electrical lead device (100, 200) of any one of the preceding claims, further comprising at least one additional supply connector (102C) with corresponding additional electrical current protection device (114C), additional voltage regulator circuit (116C), additional isolation relay (118C), additional passive LC filter configuration (120C), andadditional input lead (106C), such that when in use, the current is greater than 32 amperes.
9. An electrical lead device (100, 200) of any of the preceding claims, wherein the given supply connector is implemented as a male plug.
10. An electrical lead device (100, 200) of any of the preceding claims, wherein the load connector (112, 210) is implemented as any one of: a single-phase charging adapter (216), a female supply connector (218), an industrial socket connectable to a plant machinery.
11. An electrical lead device (100, 200) of claim 10, wherein when the load connector (112, 210) is implemented as the single-phase charger adapter (216) that is electrically coupled to an electric vehicle (EV), the output lead (108, 208) is electrically coupled with a control box (302) to provide the third AC voltage signal to the EV via the single-phase charger adapter, wherein the single-phase charging adapter is electrically coupled with the control box via a connecting lead (304).
12. An electrical lead device (100, 200) of any of the preceding claims, wherein a number of prongs on the given supply connector is based on any one of: a regional standard, a national regulation.
13. An electrical lead device (100, 200) of any of preceding claims, wherein a length of a given lead lies in a range of 0.2 meter to 1 meter, and a cross-sectional area of the given lead lies in a range of 1 square millimeter to 5 square millimeters.
14. An electrical lead device (100, 200) of any of the preceding claims, wherein a length of the output lead (108, 208) lies in a range of 0.2 meter to 1 meter, and a cross-sectional area of the output lead lies in a range of 2 square millimeters to 7 square millimeters.
15. An electrical lead device (100, 200) of any of the preceding claims, wherein the given supply connector has a predefined current rating and a predefined voltage rating, wherein the predefined current rating lies ina range of 0 amperes to 32 amperes, and the predefined voltage rating lies in a range of 216 volts to 253 volts.
16. An electrical lead device (100, 200) of any of the preceding claims, wherein the electrical circuit (110, 212) comprises a Printed Circuit Board 5 (PCB) (500).
17. An electrical lead device (100, 200) according to claim 16, wherein the amalgamation point (P) is arranged on the PCB (500).
18. An electrical lead device (100, 200) according to any of the preceding claims, wherein the first supply connector (102A, 202A, 502A) and / or10 second supply connector (102B, 202B, 502B) further comprises a thermistor device, which in use, isolates the first AC voltage signal and / or second AC voltage signal from the amalgamation point at a predetermined temperature.
19. An electrical lead device (100, 200) according to any of the preceding 15 claims, wherein the housing (104,204) further comprises a thermistor device, which in use, isolates the third AC voltage signal from the load connector at a predetermined temperature.APPLICANT'S AMENDED CLAIM SETCLAIMS1. An electrical lead device (100, 200) comprising:a first supply connector (102A, 202A, 502A) and a second supplyconnector (102B, 202B, 502B);a housing (104, 204) comprising an electrical circuit (110, 212);a first input lead (106A, 206A) that attaches the first supply connector to the housing, which in use, communicates a first alternating current (AC) voltage signal to the electrical circuit;a second input lead (106B, 206B) that attaches the second supply connector to the housing, which in use, communicates a second AC voltage signal to the electrical circuit; andan output lead (108, 208) that attaches a load connector (112, 210) to the housing, which in use, communicates a third AC voltage signal from the electrical circuit to the load connector,wherein the electrical circuit further comprises an amalgamation point (P) for combining the first AC voltage signal with the second AC voltage signal to provide the third AC voltage signal,wherein the housing (104, 204) further comprises a first isolation relay (118A, 214A, 402A) and a second isolation relay (118B, 214B, 402B) electrically coupled to the corresponding first supply connector (102A, 202A, 502A) and the second supply connector (102B, 202B, 502B), respectively, respective outputs of the first isolation relay and the second isolation relay being connected to the amalgamation point (P); wherein activation of the first isolation relay communicates the first AC voltage signal to the amalgamation point and the activation of the second isolation relay communicates the second AC voltage signal to the amalgamation point.
2. An electrical lead device (100, 200) of any claim 1, further comprising a first electrical current protection device (114A, 404A, 504A) electricallycoupled to the first input lead (106A, 206A) and a second electrical current protection device (114B, 404B, 504B) electrically coupled to the second input lead.
3. An electrical lead device (100, 200) of any of the preceding claims, further comprising a first voltage regulator circuit (116A, 406A, 506A) electrically coupled to the first electrical current protection device (114A, 404A, 504A) and a second voltage regulator circuit (116B, 406B, 506B) electrically coupled to the second electrical current protection device.
4. An electrical lead device (100, 200) according to claim 1, wherein nonactivation of the second isolation relay (118B, 214B, 402B) prevents electrical connection between the amalgamation point (P) and the second supply connector (102B, 202B, 502B).
5. An electrical lead device (100, 200) of claim 1 or claim 4, wherein the first isolation relay (118A, 214A, 402A) and the second isolation relay (118B, 214B, 402B) each comprises a normally open (N / O) relay.
6. An electrical lead device (100, 200) of any one of the preceding claims, further comprising a first (120A, 408A) and second passive inductor-capacitor (LC) filter configuration (120B, 408B) are electrically coupled to the first and second voltage regulator circuit, respectively; wherein, the first and second passive LC filter configuration are electrically coupled to activation coils for the first isolation relay (118A, 214A, 402A) and the second isolation relay (118B, 214B, 402B), respectively.
7. An electrical lead device (100, 200) of any one of the preceding claims, further comprising at least one additional supply connector (102C) with corresponding additional electrical current protection device (114C), additional voltage regulator circuit (116C), additional isolation relay (118C), additional passive LC filter configuration (120C), and additional input lead (106C), such that when in use, the current is greater than 32 amperes.
8. An electrical lead device (100, 200) of any of the preceding claims, wherein the given supply connector is implemented as a male plug.
9. An electrical lead device (100, 200) of any of the preceding claims, wherein the load connector (112, 210) is implemented as any one of: a single-phase charging adapter (216), a female supply connector (218), an industrial socket connectable to a plant machinery.
10. An electrical lead device (100, 200) of claim 9, wherein when the load connector (112, 210) is implemented as the single-phase charger adapter (216) that is electrically coupled to an electric vehicle (EV), the output lead (108, 208) is electrically coupled with a control box (302) to provide the third AC voltage signal to the EV via the single-phase charger adapter, wherein the single-phase charging adapter is electrically coupled with the control box via a connecting lead (304).
11. An electrical lead device (100, 200) of any of the preceding claims, wherein a number of prongs on the given supply connector is based on any one of: a regional standard, a national regulation.
12. An electrical lead device (100, 200) of any of preceding claims, wherein a length of a given lead lies in a range of 0.2 meter to 1 meter, and a crosssectional area of the given lead lies in a range of 1 square millimeter to 5 square millimeters.
13. An electrical lead device (100, 200) of any of the preceding claims, wherein a length of the output lead (108, 208) lies in a range of 0.2 meter to 1 meter, and a cross-sectional area of the output lead lies in a range of 2 square millimeters to 7 square millimeters.
14. An electrical lead device (100, 200) of any of the preceding claims, wherein the given supply connector has a predefined current rating and a predefined voltage rating, wherein the predefined current rating lies in a rangeof 0 amperes to 32 amperes, and the predefined voltage rating lies in a range of 216 volts to 253 volts.
15. An electrical lead device (100, 200) of any of the preceding claims, wherein the electrical circuit (110, 212) comprises a Printed Circuit Board (PCB) (500).
16. An electrical lead device (100, 200) according to claim 15, wherein the amalgamation point (P) is arranged on the PCB (500).
17. An electrical lead device (100, 200) according to any of the preceding claims, wherein the first supply connector (102A, 202A, 502A) and / or second supply connector (102B, 202B, 502B) further comprises a thermistor device, which in use, isolates the first AC voltage signal and / or second AC voltage signal from the amalgamation point at a predetermined temperature.
18. An electrical lead device (100, 200) according to any of the preceding claims, wherein the housing (104,204) further comprises a thermistor device, which in use, isolates the third AC voltage signal from the load connector at a predetermined temperature.
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