Very Urgent ( control motor speed)

Hassan Gazal · Apr 19, 2013

Dear all ,

please i need to use 8051 controller to control ac motor speed , i read about it using triac and change firing angle , but i can't build it

so if any one please give me the code in assembly or c and the schematic diagram

thanks

AbdulMoeez · Apr 19, 2013

check schematic of ac motor speed controller input on adc pin for zero crossing.... no code because i never worked on 8051. if you code for pic or st microcontroller i can help you.
https://obrazki.elektroda.pl/1681773100_1366401596.html

ec_nisarg · Apr 19, 2013

use moc3021 to isolate triac and 8051.. use second normal opto isolator to detect zero voltage condition...
moc is must you can not connect triac directly to micro...

in 8051 you can use ext interrupt from opto iso.. when it comes send a predefined pulse to moc and wait for next interrupt..

Very Urgent ( control motor speed)

Hassan Gazal

Junior Member level 3

AbdulMoeez

Newbie level 6

ec_nisarg

Full Member level 2

Similar threads

Very Urgent ( control motor speed)

Hassan Gazal

Junior Member level 3

AbdulMoeez

Newbie level 6

ec_nisarg

Full Member level 2

Similar threads

Privacy & Transparency

Privacy & Transparency