Wirelessly Triggering a transistor

  • Thread starter sl1solo76
  • Start date
  • Tags
    Transistor
In summary, the conversation discusses the possibility of using a wireless system to turn on a computer remotely. The idea is to use an IR receiver and an encoder/decoder pair to trigger the power switch. The use of an encoder ensures that only the specific remote will activate the computer, rather than other IR devices in the room. The Holtek brand offers suitable encoder/decoder pairs for this purpose.
  • #1
sl1solo76
12
0
I use my computer a lot for watching movies and at night i really don't like getting up and having to manually hit the power switch, so i was thinking it could be possible to do it wireless.

Now i have a general concept here, maybe an IR reciever going to the base, a line feeding from the power supply somehow connecting to the collector, and the emitter tied to the PS_ON line. Connecting the +v from the power supply and the PS_on is the same as pushing the power button.

The only thing is I am not sure how to make the receiving LED trigger the transistor... directly hooking it up sounds way to simple...

any ideas? or IS it that simple?
 
Engineering news on Phys.org
  • #2
Simplest way is to use an encoder/decoder pair...

You need an encoder to generate a pattern that only the decoder will respond to, rather than all the IR devices in your bedroom (tv, video, dvd player etc etc).

Holtek do some suitable encoder/decoder pairs, HT12A, HT12D, HT12E, HT12F...

Download the datasheets from their site & see if they are suitable.
 
  • #3


I can say that your idea of wirelessly triggering a transistor to turn on your computer is definitely possible. In fact, there are already products on the market that use wireless technology to turn on devices remotely. The basic concept you have described is correct, where an IR receiver would detect a signal and activate the transistor, which would then complete the circuit and turn on your computer.

However, there are a few considerations to keep in mind when implementing this idea. Firstly, the transistor needs to have a high enough current rating to handle the power supply line and the PS_ON line. Additionally, you would need to ensure that the IR receiver and the transistor are compatible in terms of voltage and current.

Another important factor to consider is the security of your computer. With wireless technology, there is always a risk of interference or someone else triggering your computer to turn on. Therefore, it would be wise to add some form of security measure, such as a password or authentication process, to prevent unauthorized access to your computer.

In terms of directly hooking up the IR receiver to the transistor, it may not be as simple as it sounds. The IR receiver may require a specific voltage or current to function properly, and this may not be compatible with the transistor. It would be best to consult the datasheets of both components and possibly use additional circuitry, such as resistors, to ensure proper functioning.

In conclusion, wirelessly triggering a transistor to turn on your computer is a feasible idea, but it requires careful consideration of various factors such as compatibility, security, and proper circuit design. It is always recommended to consult a professional or conduct thorough research before attempting to implement such a project.
 

Related to Wirelessly Triggering a transistor

1. What is wirelessly triggering a transistor?

Wirelessly triggering a transistor refers to the process of using a wireless signal, such as radio frequency or infrared, to activate or control the operation of a transistor. This allows for remote control or automation of electronic devices without the need for physical wires or connections.

2. How does wirelessly triggering a transistor work?

Wirelessly triggering a transistor works by using a wireless signal to induce a small current in the base of the transistor. This current then allows a larger current to flow from the collector to the emitter, turning the transistor on and allowing electricity to pass through to the connected device.

3. What are the advantages of wirelessly triggering a transistor?

Some advantages of wirelessly triggering a transistor include increased convenience, as there is no need for physical connections, and the ability to control multiple devices with a single wireless signal. It also allows for remote operation of devices in hard-to-reach or hazardous areas.

4. Are there any limitations to wirelessly triggering a transistor?

Yes, there are some limitations to wirelessly triggering a transistor. The distance between the wireless transmitter and the transistor must be within a certain range for the signal to be effective. Additionally, interference from other wireless signals or physical barriers can affect the reliability of the signal.

5. How is wirelessly triggering a transistor used in scientific research?

In scientific research, wirelessly triggering a transistor can be used to remotely control and monitor experiments and equipment. This allows for precise and continuous data collection without the need for human intervention. It can also be used in the development of wireless sensors and communication systems for various scientific applications.

Similar threads

Replies
11
Views
2K
  • Electrical Engineering
Replies
5
Views
1K
Replies
68
Views
4K
  • Electrical Engineering
Replies
19
Views
1K
Replies
10
Views
1K
  • Electrical Engineering
Replies
5
Views
2K
  • Electrical Engineering
Replies
12
Views
799
  • Electrical Engineering
Replies
11
Views
2K
  • Electrical Engineering
Replies
3
Views
1K
  • Electrical Engineering
Replies
5
Views
2K
Back
Top