Infrared Phototransistor?

  • Thread starter Microhoo
  • Start date

Answers and Replies

  • #2
Averagesupernova
Science Advisor
Gold Member
3,674
655
Your post makes no sense without showing us a schematic.
 
  • #3
vk6kro
Science Advisor
4,081
40
It sounds like you are trying to drive a motor directly with a phototransistor.

This is unlikely to work because the motor needs a lot of current to work and the phototransistor is unable to supply this.

There was a similar thread last year and you might like to have a read through it and a look at the drawings in it. There were several circuits that would possibly help you.

Click on this:
https://www.physicsforums.com/showthread.php?t=333127

Your motor would be switched by the relay contacts at the right of the various circuits.
Be careful to include the protective diode where shown in the circuits.
 

Related Threads on Infrared Phototransistor?

Replies
7
Views
4K
  • Last Post
Replies
4
Views
18K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
21
Views
20K
  • Last Post
Replies
3
Views
42K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
6
Views
3K
Replies
1
Views
1K
  • Last Post
Replies
4
Views
4K
Replies
1
Views
655
Top