Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
ABSTRACT This project discusses the development of an electric motor controller that follows the specifications given in the class website. Mainly these specifications can be grouped under bi-directionality, braking, and speed control. To implement these specifications, the discussed circuit uses a “boost-to-buck” topology that allows a switch from acceleration to braking while using the duty cycles of the converters to control voltage flow while a DPDT switch was added to control the direction of the motor. A GAL chip was programmed to control the multiple transistors used for this circuit. INTRODUCTION The specified electric motor controller is expected to include bi-directionality, speed control, and braking, where each of these aspects have sub-requirements such as the need for default braking to be regenerative and the inclusion of an alternative quick braking scheme. We begin with bi-directionality, which is controlled with a DPDT switch connected in H-bridge formation. This switches the terminals of the motor, thus switching the voltage at the terminals and the direction of rotation. During acceleration and regenerative braking, one terminal of the motor is always switched to the ground terminal and the other terminal is connected to an inductor. The “buck to boost” topology applied allows adjustment of speed control and
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2


This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online