IR amplifier?

  • Thread starter Popeye
  • Start date
  • #1
2
0
Is it possible to build an IR amplifier?

I have a weak remote aimed a TV really far away. Is it possible to build a device that I aim the remote at, and it amplifies the signal, then sends a copy of the amplified signal to the TV? Pretty much a repeater?

If so, how?

Thanks
 

Answers and Replies

  • #2
ranger
Gold Member
1,680
1
Something like this?
http://www.discovercircuits.com/DJ-Circuits/40kvcr.htm

The output of the photodiode is fed to a schmitt trigger (hex) inverter. The 74C14 (CMOS schmitt trigger (hex) inverter) is configured as a sine to square wave converter. The output of this regenerated signl is fed to an FET which essentially pulses on and off according to the pulse of the input waveform. The IR emitters on the output will pulse on and off according to how the FET is powered.
 
  • #3
2
0
Something like this?
http://www.discovercircuits.com/DJ-Circuits/40kvcr.htm

The output of the photodiode is fed to a schmitt trigger (hex) inverter. The 74C14 (CMOS schmitt trigger (hex) inverter) is configured as a sine to square wave converter. The output of this regenerated signl is fed to an FET which essentially pulses on and off according to the pulse of the input waveform. The IR emitters on the output will pulse on and off according to how the FET is powered.

Wonderful, just what I needed. Thanks!
 

Related Threads on IR amplifier?

  • Last Post
Replies
6
Views
10K
Replies
5
Views
2K
  • Last Post
Replies
4
Views
6K
  • Last Post
Replies
8
Views
3K
  • Last Post
2
Replies
42
Views
17K
  • Last Post
Replies
1
Views
695
  • Last Post
Replies
11
Views
2K
  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
2
Views
5K
  • Last Post
Replies
3
Views
892
Top