08-06-2010, 02:01 AM
Please can anyone assist me with the write up of speed control of stepper motor using AT89c51
08-06-2010, 02:01 AM
Please can anyone assist me with the write up of speed control of stepper motor using AT89c51
09-06-2010, 12:16 AM
STEPPER MOTOR CONTROL USING
89C51 MICRO-CONTROLLER This controller can control the rotation of a DC stepper motor in clockwise and anti-clockwise directions.It has application in machine control and robotics. the block diagram of the stepper motor control system has a power supply, microcontroller board, contrl section. Atmel AT89C51 is a powerful, highly flexible and cost-effective solution to many embedded control applications. Circuit description When power supply switch S1 is closed, LED1 glows to indicate the presence of power in the circuit. The capacitor provides the power-on reset to the microcontroller. When transistors conduct, current flows through the coils and they create magnetic fields and the motor starts rotating. the magnetic field collapses and a reverse voltage develops and the motor stops. Clock and reset circuit.: The speed of the stepper motor is proportional to the frequency of the input pulses. The Reset switch (S2) allows you to reset the program without having to interrupt the power. Driver circuit design: The microcontroller outputs a current of 1.7 mA. An amplifier must be used to boost the current. a driver circuit using transistors SL100 and 2N3055 amplifies the current to 2.7 A. Programming: The program is written in Assembly language and compiled using ASM51 crossassembler.One-step equals 1.8 degree. 200 steps make 360 degree. the step sequence for 100 steps to energise the windings of the stepper motor in clockwise and anti-clockwise directions. is orecisely written in the program. For the pdf and the program listings, see: http://kitsnsparesadmin/pdffiles/Stepper...roller.pdf
25-07-2012, 10:30 AM
to get information about the topic "stepper motor controller using 89c51" full report ppt and related topic refer the link bellow
https://seminarproject.net/Thread-steppe...controller https://seminarproject.net/Thread-speed-...ng-at89c51 |
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