Programmable Pulse Width Modulation (PWM) User Interface For H-Bridge Driver

Mohd Izwanni , Sariman (2009) Programmable Pulse Width Modulation (PWM) User Interface For H-Bridge Driver. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

A Pulse Width Modulation (PWM) is widely used in different areas of control systems, such as robotics, industrial process control, power control systems, etc. A PWM circuit converts a DC voltage into a series of pulses, so that the pulse duration is directly proportional to the value of DC voltage. There are two of the more popular form PWM techniques which is Simple, locked anti-phase PWM teclmique and Sign/Magnitude PWM technique. The H-Bridge Driver circuit is to drive the DC motor which is controlled by PWM (Pulse Width Modulation) signal. The interface was used to connect the H-Bridge Driver circuit with PWM signal. On the PC, a graphical user interface (GUI) will be developed which will adjust the value of frequency and the duty cycle for control the position and speed DC motor. The user will be able to enter the desired value of set point on the GUI and the speed for this motor can high or low and the position for DC motor change from counterclockwise or anti clockwise. Overall, this project will provide a user friendly graphical presentation so that the control and monitoring process will be simple and convenient.

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