REMOTE CONTROL SPOTLIGHT

摘要

PURPOSE:To simplify the fine adjustment of a control parameter by performing the A/D conversion of an analog value which responds to a current attitude outputted from a position sensor, computing a deviation from a target attitude and controlling a circuit for a driving current. CONSTITUTION:A central processing device 21 controls a communication interface 20 and at the same time recognizes a target attitude value of a digital value contained in a target attitude command signal. An A/D conversion part 26 is controlled and at the same time a positional detection value of an analog value which responds to a current attitude outputted from a potentiometer 25 is recognized as a positional detection value of a digital value. A deviation between the target attitude value and the positional detection value is computed to output the data to the pulse width modulation signal output circuit 22a of a driving circuit 22. The driving circuit 22 converts a pulse width modulation signal into a current to supply a driving current to a d. c. motor 23. The d.c. motor 23 performs the attitude control of a movable light body 24. The potentiometer 25 changes the electric resistance according to the movement of the current attitude of the movable light body 24 to output a positional detection value.