Before you get to understand the stages involves in the construction of a power inverter, you must have known or familiar with the meaning of a power inverter, the working principles, the reason why you should convert direct current (D.C) to (A.C), the benefit/advantages and disadvantages of a power inverter: link these will guild you to basic guild/information on how to embark on these project. In view of the construction of a power inverter, The stages of a power inverter depends on the types you want to Construct for instance the stages involves in a manual type of inverter is quilt different from the stage involves in the automatic type, in these case am going to list and explain the stages of a power inverter.
What are the stages of a power inverter?
The stages involves in the construction of a power inverter are the, Oscillator, Mosfet arrangement, the transformer, the battery Charger, Indicator and Automatic change over (relay).
Understanding the stages involved in the construction a power inverter
Oscillator: An oscillator converts the input DC (Direct Current) from a lead acid battery into an oscillating current or a square wave which is fed to the secondary winding of a power transformer. In the present circuit, IC 4049 has been used for the oscillator section. It works as the production of two signal pulse, which switch on the mosfet transistor separately for the production of current alternatively. Note: the two signal voltage coming out from the oscillator signal pulse must be equal and not more than 5 to 6v to switch on the power mosfet for effective work.
Transformer: a transformer will step u the applied voltage of oscillator which can be achieved with the winding of the transformer, the more coil the high the voltage. and the applied oscillating voltage of the inverter is stepped up as per the ratio windings of the transformer , an AC much higher than the input DC source becomes available at the primary winding or the output of the inverter. Is the neighboring network induction between secondary and primary coil to invert from DC to AC.
Charger: During power backups when the battery gets discharged to a considerable level, the charger section is used to charge the battery once the AC main is restored. It convert from the alternating current been a rectifier, producing a full wave rectification.
Mosfet function as power transistors and sense voltage to the secondary coil transformer to induce magnet flux to the primary coil for the production of AC voltage. The mosfet are arranged into two groups D1 and D2 receiving the two signals from the oscillator circuit output and switch separately in accordant to their dill connection through the gate (g) of the mosfet in respect of their resistance. Finally it entire source (s) is connected together with thick wire conductor as the negative input DC supply.
Change over: In the stage of interrupted power supply main of inverter. Either from the inverter itself or public electricity supply. It consists of relays connection and in order of the terminals connections.
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