# Boost Converter Proteus Simulation

## Video Transcript of Boost Converter Proteus Simulation

### Boost Converter Introduction

In this tutorial, you will learn, how to design proteus simulation of the Boost converter.
As you know that, Boost converter is a power electronics converter, it converts low voltage into high voltage. The Boost or step-up converter is a configuration that converts a voltage output, which is above the input voltage. In other words, the Boost converter boosts the input voltage to a high voltage.

### Proteus Circuit Diagram

This is a circuit diagram of a Boost converter. It consists of an inductor, diode, capacitor, and a switching device. You can refer to any power electronics textbook for its working.

With the shown component values, the converter works by ensuring a continuous current through the inductor, for this reason, it’s known as a continuous mode. By reducing the inductor value, the converter will move in the discontinuous mode.

The voltage output can be calculated by this formula:

`Vout = Vin * T/(T-T1) where:`

Where T is the PWM period And, T 1 is an OFF time of PWM.

For this example, we will convert 4 volts input, into 16 volts output. That means we need a 75 % duty cycle. If we put T = to 20 microseconds, and T1 = to 15 microseconds in this formula, the output voltage will be about 16 volts. In other words, if we provide a 75% duty cycle to MOSFET, the output voltage will be about 16 volts. We use MOSFET as a switching device.

### Proteus Simulation Steps

• To provide, Pulse width modulation signal to MOSFET, we used a PWM generator signal of proteus,
• Now place all components in the proteus window, and make a connection according to this circuit diagram.
• Now open, PWM signal, and make setting according to these values.
• After that connect the output voltage probe, and output current probe.
• Now add analog graphs, to check waveforms of output current and voltage.
• In order to check output voltage waveform, right-click on graph, and make starting and end time settings.
• After that simulate the graph.
• As you can see from the graph, output voltage first shoots up, and after some time settles to 16 volts output.

Not that, while designing a boost converter practically, we can remove these starting output voltage fluctuations, by using a PID controller.

After that, follow the same procedure to see the output current waveform.
As you can see, the output current is continuous. This is how we can simulate a boost converter in proteus.