Description:TECHNICAL FIELD
[0001] The present disclosure relates to voltage regulators. More particularly the present disclosure relates a circuit for voltage regulation in an electric meter using light emitting diodes.

BACKGROUND
[0002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
[0003] Voltage regulator is a system designed to automatically maintain a constant voltage. One such voltage regulator is a capacitor dropper circuit or a cap-drop circuit which is used as a power supply source. More specifically. The cap-drop circuit is used as a transformerless power supply source, that uses the capacitive reactance of a capacitor to reduce higher AC (alternate current) mains voltage to a lower DC (direct current) voltage. In a conventional approach, the cap-drop power supply uses Zener diode for voltage regulation. However, the Zener diode in reverse bias maintains voltage by dynamically varying current based on load and line variation. Current in the Zener diode consumes energy and subsequently increases temperature, in order to maintain the voltage. The increase in the temperature is dissipated in the form of heat from the Zener diode, which is substantially very high.
[0004] There is, therefore, a need for a circuit for voltage regulation in an electric meter, which is free from the above discussed problems.

OBJECTS OF THE PRESENT DISCLOSURE
[0005] Some of the objects of the present disclosure, which at least one embodiment herein satisfy are as listed hereinbelow.
[0006] It is an object of the present disclosure to provide a circuit for voltage regulation, which maintains voltage by not dynamically varying the current.
[0007] It is an object of the present disclosure to provide a circuit for voltage regulation, which does not dissipate heat.
[0008] It is an object of the present disclosure to provide a circuit for voltage regulation, which helps in reducing the internal temperature of the circuit, thereby helps in increasing the life of the meter.

SUMMARY
[0009] The present disclosure relates to voltage regulators. More particularly the present disclosure relates a circuit for voltage regulation in an electric meter using light emitting diodes.
[00010] An aspect of the present disclosure pertains to a circuit for voltage regulation in an energy meter. The circuit includes a first capacitor, wherein a first end of the first capacitor is electrically coupled to a positive end of a power source. the circuit also includes a first diode, wherein an anode of the first diode is electrically coupled to a second end of the first capacitor. the circuit further includes a second diode constituting a first leg, wherein a cathode of the second diode is electrically coupled to the anode of the first diode, wherein an anode of the second diode is electrically coupled to a negative end of the power source. a second capacitor constituting a second le, wherein a first end of the second capacitor is electrically coupled to a cathode of the first diode, wherein a second end of the second capacitor is electrically coupled to the negative end of the power source. the circuit also includes a third leg. the third leg includes one or more diodes, wherein the one or diodes comprises at least one of a third diode, a fourth diode, up to an Nth diode, wherein the one or more diodes are connected in a series combination. wherein a first end of the one or more diodes is electrically connected to the first end of the second capacitor, and a second end of the one or more diodes is electrically coupled to the negative end of the power source.
[00011] In an aspect, each of the one or more diodes corresponds to a light emitting diode.
[00012] In an aspect, the first end of the one or more diodes corresponds to an anode end of the third diode, wherein the second end of the one or more diodes corresponds to a cathode end of a last diode among one of the third diode, the fourth diode, up to the Nth diode.
[00013] In an aspect the one or more diodes is configured to regulate voltage of a pre-defined value.
[00014] In an aspect, the first end of the one or more diodes is electrically coupled to a DC-DC (direct current – direct current) converter.
[00015] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF DRAWINGS
[00016] The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure. The diagrams are for illustration only, which thus is not a limitation of the present disclosure.
[00017] In the figures, similar components and/or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label with a second label that distinguishes among the similar components. If only the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label.
[00018] FIG. 1 illustrates an exemplary representation of a circuit of a prior art having a Zener diode, in accordance with an embodiment of the present disclosure.
[00019] FIG. 2 illustrates an exemplary representation of a for voltage regulation in an energy meter.

DETAILED DESCRIPTION
[00020] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the present disclosure as defined by the appended claims.
[00021] In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the present invention. It will be apparent to one skilled in the art that embodiments of the present invention may be practiced without some of these specific details.
[00022] The present disclosure relates to voltage regulators. More particularly the present disclosure relates a circuit for voltage regulation in an electric meter using light emitting diodes.
[00023] FIG. 1 illustrates an exemplary representation of a circuit of a prior art having a Zener diode, in accordance with an embodiment of the present disclosure. The circuit 100 disclosed in the FIG. 1 is a circuit from a prior art which includes a Capacitor C1 limits current due to impedance. the circuit also includes a Zener diode D3 as a voltage regulator. Due to wide line and load regulation, energy is consumed in Zener diode to maintain voltage, due to which the Zener diode generates large amount of heat. In order to avoid this, the present invention aims in replacing the Zener diode by multiple light emitting diodes (LED).
[00024] FIG. 2 illustrates an exemplary representation of a circuit for voltage regulation in an energy meter. The circuit 200 includes a first capacitor 202. The first end 204 of the first capacitor 202 is electrically coupled to a positive end 208 of a power source 212.
[00025] The circuit 200 also includes a first diode 214, wherein an anode 216 of the first diode 214 is electrically coupled to a second end 206 of the first capacitor 202.
[00026] The circuit 200 also includes a second diode 220 constituting a first leg 220-A, wherein a cathode 222 of the second diode 220 is electrically coupled to the anode 216 of the first diode 214, wherein an anode 224 of the second diode 220 is electrically coupled to a negative end 210 of the power source 212.
[00027] The circuit 200 further includes a second capacitor 226 constituting a second leg 226-A, wherein a first end 228 of the second capacitor 226 is electrically coupled to a cathode 218 of the first diode 214, wherein a second end 230 of the second capacitor 226 is electrically coupled to the negative end 210 of the power source 212.
[00028] Furthermore, the circuit 200 also includes a third leg 232 which includes one or more diodes 234, wherein the one or diodes 234 includes at least one of a third diode 234-A, a fourth diode 234-B, up to an Nth diode 234-N, wherein the one or more diodes 234 are connected in a series combination.
[00029] Further, a first end 236 of the one or more diodes 234 is electrically connected to the first end 228 of the second capacitor 226, and a second end 238 of the one or more diodes 234 is electrically coupled to the negative end 210 of the power source 212. Each of the one or more diodes 234 corresponds to a light emitting diode (LED).
[00030] Further, the first end 236 of the one or more diodes 234 corresponds to an anode end of the third diode 234-A, wherein the second end 238 of the one or more diodes 234 corresponds to a cathode end of a last diode among one of the third diode 234-A, the fourth diode 234-B, up to the Nth diode 234-N. More specifically, the one or more diodes 234 which correspond to the one or more LEDs can be one in number, two in number or may be multiple LEDs connected in series combination based on the requirement. Forward drop in a single LED is a very less value, henceforth in order to maintain the pre-defined value of the voltage, multiple LEDs are used. Further, the energy released by the LEDs are in the form of light and not heat, due to which the life of the energy meters is increased. In one embodiment, an enclosure of the energy meter is made of polycarbonate and ultrasonically welded. the LEDs as regulator will be useful to reduce internal temperature so will increases life of meter.
[00031] Furthermore, in one embodiment, the first end 236 of the one or more diodes 234 is electrically coupled to a dc-dc (direct current – direct current) converter 240.
[00032] Moreover, in interpreting the specification, all terms should be interpreted in the broadest possible manner consistent with the context. In particular, the terms “comprises” and “comprising” should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refer to at least one of something selected from the group consisting of A, B, C ….and N, the text should be interpreted as requiring only one element from the group, not A plus N, or B plus N, etc.
[00033] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions, or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

ADVANTAGES OF THE INVENTION
[00034] The proposed invention provides a circuit for voltage regulation, which maintains voltage by not dynamically varying the current.
[00035] The proposed invention provides a circuit for voltage regulation, which does not dissipate heat.
[00036] The proposed invention provides a circuit for voltage regulation, which helps in reducing the internal temperature of the circuit, thereby helps in increasing the life of the meter.
, Claims:1. A circuit (200) for voltage regulation in an energy meter, wherein the circuit (200) comprises:
a first capacitor (202), wherein a first end (204) of the first capacitor (202) is electrically coupled to a positive end (208) of a power source (212);
a first diode (214), wherein an anode (216) of the first diode (214) is electrically coupled to a second end (206) of the first capacitor (202);
a second diode (220) constituting a first leg (220-A), wherein a cathode (222) of the second diode (220) is electrically coupled to the anode (216) of the first diode (214), wherein an anode (224) of the second diode (220) is electrically coupled to a negative end (210) of the power source (212);
a second capacitor (226) constituting a second leg (226-A), wherein a first end (228) of the second capacitor (226) is electrically coupled to a cathode (218) of the first diode (214), wherein a second end (230) of the second capacitor (226) is electrically coupled to the negative end (210) of the power source (212);
a third leg (232) comprising:
one or more diodes (234), wherein the one or diodes (234) comprises at least one of a third diode (234-A), a fourth diode (234-B), up to an Nth diode (234-N), wherein the one or more diodes (234) are connected in a series combination,
wherein a first end (236) of the one or more diodes (234) is electrically connected to the first end (228) of the second capacitor (226), and a second end (238) of the one or more diodes (234) is electrically coupled to the negative end (210) of the power source (212).
2. The circuit (200) as claimed in claim 1, wherein each of the one or more diodes (234) corresponds to a light emitting diode (LED).
3. The circuit (200) as claimed in claim 1, wherein the first end (236) of the one or more diodes (234) corresponds to an anode end of the third diode, wherein the second end of the one or more diodes (234) corresponds to a cathode end of a last diode among one of the third diode (234-A), the fourth diode (234-B), up to the Nth diode (234-N).
4. The circuit (200) as claimed in claim 1, wherein the one or more diodes (234) is configured to regulate voltage of a pre-defined value.
5. The circuit (200) as claimed in claim 1, wherein the first end (236) of the one or more diodes (234) is electrically coupled to a DC-DC (direct current – direct current) converter (240).