ABSTRACT
This paper is the winch controller. Significance of their research is to realize the
winch control, air sonar, ship towed sonar depth cast, cast speed control. The release
and recovery of sonar played a significant role. The main idea is to control through
the C8051F040 chip, the signal collected by the LM298N processing, through the use
of DC motors and rotary encoders, analog winch rotation, and various analog switch
winch, to the control system to provide speed feedback signals and status signals the
winch. In order to achieve the winch forward, reverse, stop, control winch speed.
System consists of voltage control, DC motor drive circuit, opto isolation circuit,
control box cutter, rotary encoder components. Using pulse width modulation PWM
control of DC motor control theory approach, closed-loop control principles to control
the input and output circuit and speed control.
Finally, the initial programming and procedures C8051F020 modulation,
discussed the problems encountered in the debugger, complete the final
commissioning of the entire circuit. Mission statement to the graduation requirements
of the task.
KEY WORDS: C8051F020, winch, PWM pulse width modulation, DC motor drive
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