Damian Lee

Introduction

I’m currently taking a class over power electronics. The laboratory section of the class requires us to develop a boost converter to drive a bicycle motor, which will then be fabricated and tested in real world conditions.

Controls

The first thing my team and I were required to do is configure our control board, which for this class is the TI C2000 development board. This is important to the function of the converter because we are using the pulse width modulation (PWM) feature to control the converter devices.

A simplistic explanation on how pulse width modulation is effects the output conversion ratios can be found below.

$$\frac{V_{out}}{V_{in}} = \frac{1}{1-D} \label{1}$$

where $D =$ the PWM duty cycle

Pulse width modulation allows us to control D to achieve the desired output voltage.

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