Friday, 15 July 2016

Simple BOOST conveerter

According To wikipedia
boost converter (step-up converter) is a DC-to-DC power converter steps up voltage (while stepping down current) from its input (supply) to its output (load). It is a class ofswitched-mode power supply (SMPS) containing at least two semiconductors (a diode and a transistor) and at least one energy storage element, a capacitorinductor, or the two in combination. To reduce voltage ripple, filters made of capacitors (sometimes in combination with inductors) are normally added to such a converter's output (load-side filter) and input (supply-side filter).

circuit Diagram and Operation
when transistor is on
when Transistor Is off
Output voltage = supply voltage + voltage across the inductor

Here, I used the pulses from a 555 timer to make transistor on and off. I collected the inductor from a burnt cfl ballast.

Here is an video of my prototype