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Dc to AC inverter

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Dc to AC inverter

  1. 1. Transistors T1 and T2 along with the other R1, R2, R3 R4, C1 and C2 together form a simple a stable multi vibrator (AMV) circuit. A multi vibrator circuit basically is composed of two symmetrical half stages, here its formed by the left and the right hand side transistor stages which conduct in tandem or in simple words the left and the right stages conduct alternately in a kind of a perpetual “motion”, generating a continuous flip flop action.
  2. 2. Transistors T2 and T3 are placed at the two output arms of the AMV circuit. These are high gain; high current Darlington paired transistors, used as the output devices for the present configuration. The frequency from the AMV is fed to the base of T2 and T3 alternately which in turn switch the transformer secondary winding, dumping the entire battery power in the transformer winding. This results in a fast magnetic induction switching across the transformer windings, resulting the required the mains voltage at the output of the transformer.
  3. 3. Inverters are used today for many tasks like powering appliances in a car such as cell phones, radios and televisions. They also come in handy for consumers who own camping vehicles, boats and at construction sites where an electric grid may not be as accessible to hook into. Inverters allow the user to provide AC power in areas where only batteries can be made available, allowing portability and freeing the user of long power cords.

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