Controlling the speed of 3 phase induction motor with at89s52

[cai2]

i want to control the speed of a three phase induction motor, also its start/stop, forward/reverse, will at89s52 con make it?...

 

[IanP]

Re: at89s52

Start/Stop and Forward/Reverse can be controlled with almost any microcontroller with a few general purpose I/Os + zero-crossing opto-isolators + Triacs (or something like that) ..
Speed control (for example, zero-speed at full torque) is totally different kettle of fish and the 89S52 is just not the right choice for this job ..

Regards,
IanP

 

[vijaya_narayana]

Re: at89s52

PWM can be used for controlling the speed of the motor and with the direction can be varied with a peripheral components

 

[mkiani]

at89s52

if you use of power element like thyristor by it ,YES

 

[Medtronic]

Re: at89s52

Ianp is so right,

Regards

 

[cai2]

Re: at89s52

if any of the family of the 8051 microcontroller, will they can do the job,say 89c4051?

 

[vijaya_narayana]

Re: at89s52

i think any family on 8051 micro controller can do the job but the coding for pwm might become complex when there is no PWM generator module built in

 

[firmware]

at89s52

Try to find the part no. that provided the PWM function.