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I'm actually a beginner in this field ..
if I use the LM317 or LM2576, should I add the other components in my project?
Can I still use my scheme in my converter as shown in the picture, or whether there are changes that I should do?
thank you ...
---------- Post added at 10:19 ----------...
input source of electronic circuit above comes from 24 DC , so, the scheme is :
AC 220 -> DC 24 v adapter 0,7 A -> 24 to 12 converter circuit -> expected output (DC 12 volt) -> Load (12 volt 0,7 A)
i just try to make a simple converter,
so, is my project wrong?
thank you
I want to make a converter 24 volt DC to 12 volt DC..
I have problem in determining spesification or value of components below :
- diode
- capasitor
I use 7812 IC regulator in electronic circuit that i attach here
**broken link removed**
Can anyone help me please? :-|
yes, i got better result, for BPSK and QPSK if i increase iteration, although it should need more time for simulation.
But for binary regular LDPC with 16 QAM, it didn't get better performance if i increase to 50.. (optimum is 35 for 16 QAM, like viewed in figure)
i have tried to simulate 5...
what is the meaning of 'cyclic' in error coding for example LDPC? what the purpose of it?
please give me a sort explanation about this...
thaknk you
regards
i've use 35 times for iteration sir,,, i think it enough for simulation. I've try 50, but it didn't give better performance..
i've tried to find the reason, i found that for 16 QAM system, we should use non binary LDPC. is it right?
what do you think about it?
thank you
But i've read in some reference, that (binary / gallager) LDPC has lower complexity than the other. But this condition also depend on the application.
Can anyone help me why LDPC can't be implemented in the past but Reed Solomon is chosen. Whereas, LDPC often use nowaday and compete with...
i have read an article about LDPC.
i've read that LDPC has found over 35 years ago, but it's forgotten because computational demand for simulation can't be found at that time.
but we know that LDPC has less computational / less complexity than other codes, for example Reed Solomon.
How come...
what do you think with my result? do you think my 3rd result (regular LDPC with 16 QAM) is wrong?
or maybe, does a system with 16 QAM must use other scheme of LDPC ?
(not regular LDPC)
can anyone explain to me the reason why a got that result for 3rd figure?
thank you
regards
i try to simulated BPSK and QPSK over AWGN channel. then i plot eyediagram for each simulation. The results are shown by figures below :
BPSK :
QPSK :
how to read and describe (express) that result?
why qpsk inphase and quadrature are slightly different? (quadrature is little worse, but...
I'm not a specialist in electronics, but you can add your reference at Electronic Circuits Projects Diagrams Free
or www.electro-tech-online.com/.../45236d1281004398-im-struggling-mystery-issue-icl7106-datasheet.pdf
i hope it can help you.,
so, white noise has constant value? but i've read that AWGN has random distributed noise...
what is relation that figure with characteristics of AWGN? (additive, white, gaussian noise)
which noise has constant value, which one is random?
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