Claims:The scope of the invention is defined by the following claims:

Claims:
1. A solar panel based inverter circuit comprising:
a) A power conditioning circuit mounted on a circuit board, the power conditioning circuit having a dc power input to receive dc power from one or more photovoltaic panels and an ac power output to deliver ac power to an ac mains power supply
b) An electrically conductive shield comprises a set of holes to allow an injection of said plastic over mould through conductive shield to cover the circuit board.
c) A plastic over mould extends through one or more holes in the set of holes of the conductive shield to encapsulate the solar photovoltaic inverter.
2. As per claim 1, the power conditioning circuit comprises at least one coil or transformer having a core, wherein coil or transformer is coated with an elastic material to permit thermal expansion of core within plastic over mould.
3. According to claim 1, combined usage of a solar inverter, or PV inverter, converts the direct current (DC) output of a photovoltaic solar panel into a utility frequency alternating current (AC) as well as constant Direct current (DC) that can be fed into a motor. , Description:Field of Invention
The present invention relates to solar inverter circuit essentially requires two parameters to be configured correctly, namely the inverter circuit and the solar panel specs .the solar panel based inverter circuit is developing a system which makes use of solar energy for rural electrification.
Background of the Invention
The Solar Panel Based Inverter Circuit can be done using MOSFET, Mono stable Multivibrator, Capacitors, transformer and Solar panel; we can generate voltage with inverter using energy conversion through solar panel. A solar panel is nothing but a form of power supply which produces a pure DC. The solar cells that are connected together make up the solar panel. This can last up-to several decades without replacement. However, the energy can be produced only in the presence of sunlight. Background of solar inverters in general can be found in: EP0780750A; JP2000020150A; US2005/0068012.
The solar panels are coupled with the rechargeable batteries, which can store excess power generated and provide energy in the absence of sunlight. Solar energy has advantages over other renewable energy sources including wind and water power, solar power is generated using solar panels, which do not require any major mechanical parts, Transaction No. 77, pp. 217-220 (1996). These mechanical parts can breakdown and cause maintenance issues and can also be quite noisy. Both of these issues are virtually non-existent with solar panels.
For selecting the right solar panel, the basic thing to consider is that the average solar wattage must not be less than average load wattage consumption. Let's say a 12V battery needs to be charged at 10amp rate, and then the solar panel must be rated to provide a minimum of 12 x 10 = 120 watts at any instant as long as there's a reasonable amount of sun shine. [IJARIIE-ISSN(O)-2395-4396] Since generally it is difficult to find solar panels having lower voltage and higher current specifications, Since this DC is dependent on the intensity of the sun rays, the output is normally inconsistent and varies with the sun light position and climatic conditions. Although solar panel is also a form of power supply, it significantly differs from our usual home power supplies using transformers or SMPS. In the Solar Panel based inverter circuit need a significant amount of investment and it can be costly to afford. It is necessary to have the optimum amount of sunlight to generate enough electricity. The problem where sunlight is low and the only source of electricity is the solar system. Solar system with inverter requires a large space for installation [Int J Recent Sci Res. 7(7), pp. 12440-12443].
Accordingly, there is an urgent requirement for a solar inverter circuit to Generate Non conventional energy. The present invention overcome these problems observed in the prior art and discloses here in the operation of Solar Panel based inverter circuit devoid of the above mentioned drawbacks.[IJIRT Volume (6) pp.2349-6002].
US 4942736 provides a method of and apparatus for producing power from solar energy wherein a solar collector heats gas supplied to a gas turbine; compressors compress the gas, the gas being compressed and stored gas during a first period of time, with the stored compressed gas being supplied to the gas turbine during a second period of time to produce power by driving an electric generator.

Summary of the Invention
In light of the above mentioned drawbacks in the prior art, the present invention aims to control this system requires periodic monitoring and maintenance. This system fails to work if the where sunlight is low. Status of operated devices is not known.

The specific objective of the invention is to design a solar panel based inverter circuit developing a system which makes use of solar energy for rural electrification and solar energy is treated as non renewable source of energy.

A further specific objective of the invention is to remove ecological, greenhouse effect and unnatural weather changes and Helps to empowering small business and organization by becoming the cost-efficient solution to all their energy needs and requirements.
Brief Description of Drawings
The invention will be described in detail with reference to the exemplary embodiments shown in the figures wherein:
Figure 1 Block Diagram Representation of Solar Inverter Circuit.
Figure 2 Pictorial representation of Inverter Circuit
Figure 3 Pictorial representation of Solar Panel Inverter circuit with load.
Detailed Description of the Invention
The Comprehension of the present disclosure provide a Solar Panel based inverter circuit gives solar energy is converted into electrical energy by using photovoltaic solar panels and then generated DC (Direct Current) is stored in batteries which is further converted by into Alternating Current (AC)
In accordance with an exemplary embodiment of the present invention, a power generation system is provided. The system comprises a photovoltaic module for generating direct current (DC) power and a controller to determine a maximum power point for the power generation system. The system further includes a boost converter for receiving control signals from the controller to boost the power from the PV module to a threshold voltage required to inject sinusoidal currents into the grid and a DC to alternating current (AC) multilevel inverter to supply the power from the PV module to a power grid. A bypass circuit is also provided in the system to bypass the boost converter when an input voltage of the DC to AC multilevel inverter is higher than or equal to the threshold voltage.
In accordance with another exemplary embodiment of the present invention, a method for delivering solar power from a power generation system comprising a PV module is provided. The method includes determining a threshold voltage for generating sinusoidal currents for the power generation system and determining whether an output voltage of the PV module at maximum power production is higher than the threshold voltage. The method further includes boosting the power from the PV module to achieve the threshold voltage level when the output voltage of the PV module is less than the threshold voltage and converting the boosted power to AC power. The method also includes bypassing the boosting and directly converting the power from the PV module to AC power when the output voltage of the PV module is higher than the threshold voltage
The Solar Panel based inverter circuit was designed based on the following criteria. i) Solar panel is actually a collection of solar (or photovoltaic) cells, which can be used to generate electricity through photovoltaic effect. ii) An Inverter helps in converting the direct current into alternate current with the help of solar power.
According to the present invention there is therefore provided a solar photovoltaic inverter, the inverter comprising: a power conditioning circuit mounted on a circuit board, the power conditioning circuit having a dc power input to receive dc power from one or more photovoltaic panels and an ac power output to deliver ac power to an ac mains power supply; an electrically conductive shield enclosing said circuit board; and a plastic over mould over said conductive shield and said circuit board; wherein said electrically conductive shield has one or more holes to allow said plastic over mould to extend through said shield to cover said circuit board.
With reference to the figure 1 the inverter circuit utilized MOSFET, Step-up transformer for making the configuration much easier straight forward. Rest of the stages are pretty much the same, in the circuit we saw the involvement of MOSFET based AstableMultivibrator (AMV) for the generation of the required 50 Hz oscillations, here incorporated a transistor operated as AMV.The circuit had a couple of 2N3055 transistors at the output and as we all know driving power transistors efficiently requires proportionate amount of base drive, relative to the load current, because transistors depend on current drive rather than voltage drive, in contrast to mosfets. Meaning, as the proposed load becomes higher, the base resistance of the relevant output transistor also gets proportioned accordingly for enabling optimal amount of current to the base of the transistors, due to this obligation, in the previous design a additional driver stage had to be incorporated for facilitating better drive current to the 2N3055 transistors.
Parts List: R1,R2=27KΩ, R3,R4,R5,R6=470OΩ, C1,C2=0.47uF/100Vmetallized, T1,T2=BC547, T3,T4=any30V,10ampmosfet,N-channel. Transformer=9-0-9V,8Amp Battery = 12V,10AH
A solar Inverter work by taking in power from a Direct Current (DC) Source, i.e., the solar panel. The power is generated in the range of 250 Volts to 600 Volts. DC power is converted into AC power by the inversion process taking place in the inverter. This process of DC to AC Conversion is achieved by using a set of solid state devices like Metal Oxide Semiconductotor Field effect Transistor (MOSFET’s). These devices when connected in a typical H-Bridge arrangement oscillate the DC power thereby creating AC power. A step up transformer is used in between the devices. At this stage, the AC power output is obtained, which is either consumed by the local loads or can be fed to the grid. A few manufacturers have started manufacturing transformer-less inverters which have higher efficiencies as compared to inverters having transformers.
3 claims & 3 Figures