Constructing an IR Amplifier - Is it Possible?

In summary, constructing an IR amplifier is possible through the use of specialized components such as infrared receivers, transistors, and capacitors. However, it requires a thorough understanding of circuitry and electronic components, as well as proper wiring and soldering techniques. Additionally, the amplifier must be properly calibrated and tested to ensure optimal performance. Overall, while constructing an IR amplifier may be challenging, it is achievable with the right knowledge and skills.
  • #1
Popeye
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
 
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  • #2
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
ranger said:
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!
 

1. Can an IR amplifier be constructed?

Yes, it is possible to construct an IR amplifier. Infrared (IR) amplifiers are electronic circuits that amplify infrared signals, which are typically used for remote control systems. They can be built using various electronic components, such as transistors, op-amps, and resistors.

2. What is the purpose of an IR amplifier?

The purpose of an IR amplifier is to amplify weak infrared signals so that they can be transmitted over longer distances or through obstacles. This is useful in applications such as remote control systems, where the signal needs to be strong enough to reach the receiver.

3. What are the key components needed to construct an IR amplifier?

The key components needed to construct an IR amplifier include an IR receiver, an IR LED, a transistor, a resistor, and a power source. The IR receiver is used to receive the weak infrared signal, which is then amplified by the transistor. The resistor is used to control the amount of current flowing through the circuit, and the power source provides the necessary voltage for the circuit to operate.

4. Is it difficult to construct an IR amplifier?

Constructing an IR amplifier can be a challenging task, especially for those who are not familiar with electronics and circuit building. However, with the right knowledge and resources, it is possible to successfully build an IR amplifier. It is important to carefully follow instructions and double-check all connections to ensure the circuit is functioning properly.

5. Are there any limitations to constructing an IR amplifier?

One limitation of constructing an IR amplifier is that it requires some basic knowledge of electronics and circuit building. It may also require specialized tools and equipment, which may not be readily available to everyone. Additionally, the performance of the amplifier may be affected by external factors such as interference and distance between the transmitter and receiver.

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