connecting tip122 with dc 5volt motor with 8051

Status
Not open for further replies.

hassan ali

Member level 2
Joined
May 18, 2010
Messages
47
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Location
egypt
Activity points
1,667
hi, sorry for my English
i want to control in DC 5 volt motor so i connected it with tip122 and a micro controller to set the base of transistor to became a switch , but the motors doesn't work here is my circuit i want to know if i connect the tip in right way or in wrong way , please help my.

https://obrazki.elektroda.pl/16_1306009074.jpg
 

One possible solution (attached, from a Proteus example):
 

Attachments

  • DC motor.jpg
    25.4 KB · Views: 135
thank u for ur reply but please write the value of q3 because i can't see it
 

Last edited by a moderator:
Reactions: zuisti

    zuisti

    Points: 2
    Helpful Answer Positive Rating
Q3, Q4, Q7 and Q8: use small power NPN Si transistors here (like BC107
 
Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…