Hello
As a part of project to simulate the Clancy's model of EMG insider circuit, I need to simulate this isolated power circuit as well.
But the problem is, there's no "7807" or any kind of fixed voltage regulator which provides 7v in output.
So I managed to use an adjustable voltage regulator, but somehow that didn't work too. (I can post the schematics if needed)

Is there a way to use a direct DC 7v instead of this circuit to provide the same output?!
Or maybe another circuit that does exactly the same as this circuit?!
IDK

Any type of help is appreciated.
Thanks in advance.

 

Hi
Lately I've posted another thread about this circuit and I've asked for help but nobody answered.
U can find it here.

Here's my question now: can I replace this whole circuit with two direct voltage source for +-7v outputs (like the one in generator mode list in Proteus) ?

Pls let me know if I've posted this thread in a wrong forum
Thanks in advance

 

There are quite a few simulation questions in the general electronics chat, but they would be just as appropriate here. The problem is that the question is confusing. Unless the regulators are being evaluated there is no reason to show them in a simulator circuit. Just use the theoretical perfect voltage source, unless you are needing to determine the response of regulators.

 

You did not post a link to the circuit that needs a positive +7.0000V supply and a negative -7.0000V supply for us to see why a +/- 9V supply won't work.

 

There are quite a few simulation questions in the general electronics chat, but they would be just as appropriate here. The problem is that the question is confusing. Unless the regulators are being evaluated there is no reason to show them in a simulator circuit. Just use the theoretical perfect voltage source, unless you are needing to determine the response of regulators.

That's all I needed to do, and it worked!
Thanks

 

You did not post a link to the circuit that needs a positive +7.0000V supply and a negative -7.0000V supply for us to see why a +/- 9V supply won't work.

Because in this circuit, the INPUT in 9-12v and the OUTPUT is +-7v.

Just imagine that I want to make this circuit work in Proteus, not for any other special reason or supplying any other circuit with it.

Also, I've solved it, thanks for your reply

 

Of course, in the real world having a voltage that accurately set is both very expensive and very very unlikely. And in most applications, rather un-needed. Given the difficulty and expense of such close control, most systems are designed to work with voltages within 3% of the nominal value.

 

Look into the LM317 and LM337. These are very easy to use and can be adjusted to +7 V and -7 V using the equation in the datasheet.

ak

 

Something up above must have been edited, cause I don't see any five digit numbers or anything that looks "very expensive."

Look into the LM317 and LM337. These are very easy to use and can be adjusted to +7 V and -7 V using the equation in the datasheet.

ak

 

OK, AG, I went back and it was not the TS referencing the 7.0000 volt supplies.
BUT for the purpose of a simulator why spend the effort to add a regulator? It is simulation, where power sources are perfectly stable and noise free, not like the real world.