How do u increase the sensitivity of an IR sensor?

  • Thread starter vivazza
  • Start date
  • #1
2
0

Main Question or Discussion Point

how do u increase the sensitivity of an IR sensor? what are the options?
 

Answers and Replies

  • #2
27
1
If you're talking about an NPN IR photo-transistor, use it in a darlington arrangement with another sensitive NPN transistor.

In other words, use it to make a collector-base connection on another NPN transistor. Then, if there's a potential across the second transistor's collector-emitter junction any IR on the phototransistor will "turn on" the NPN transistor.
 

Related Threads on How do u increase the sensitivity of an IR sensor?

  • Last Post
Replies
7
Views
1K
Replies
1
Views
2K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
4
Views
4K
Replies
1
Views
1K
Replies
4
Views
8K
Replies
2
Views
8K
  • Last Post
Replies
5
Views
2K
Replies
1
Views
605
Top