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Simulator-programi i modeli...
#48
Ako se setim još šta .... pišem!   :-)
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Setio se, to jest prisetio me zajednički prijatelj/drug/forumaš.

Napravili smo detaljnu analizu jednog pojačala, (mogla bi biti analiza predpojačala, nekog aktivnog filtra, tone controla, RIAA,....) u TinaTI,
i nastao je jedan tutorial kroz dopisivanja,

nekakav Laboratorijski praktikum sa simulatorom,


koji vrlo blisko odražava mjerenja u klasičkim labu - "real world measurements"! :-)

Kako iz simulacije i ponudjenih analiza dobivamo potrebne parametre:

Ao gain
Input sensitivity (rms, peak, za postizanje max (klipping) izlazne snage)
BW (-0,5 ili -1dB, -3dB)
Phase @20Hz i @20KHz

Input voltage noise density, graf šuma/freq
SNR @ 1KHz, ili graf SNR/freq

THD - load (opterečenje 8R0, 4R0...)
@1Wrms, 10Wrms, 80% max power, max power (par volti izlazne amplitude manje od klippinga izlaza)
pregled nivoa viših harmonika...

PSRR (neg, pos)

SR (to je več teško oceniti u simulatoru, ali vidi se tendenca "spor, brz...")

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PSU linear analiza

-za trafo stavljamo znane parametre, uključimo i gubitke, limitiramo max struje prim, sek...
-Output voltage ripple na znanim opterečenjima, experimentisanje sa bulk kond bankom, RC, CRC, variacije C-R-L filtracije...
-odziv napajanja na momentalne peakove struje/potrošnje
-šta se dešava u greatzu, kako se puni bulk banka, kakve imamo peak struje kroz diode, kakav šum proizvode diode kod transicija on/off


---------------------------------------------

PSU SMPS projektiranje i analiza

Ovo ču pokušati prezentirati sa UCC 38C4x familijom i nekim Buck-Boost topologijom
-prijektiranje počevši iz DS
-FB, Comp, SoftStart, OCP
-snubbers

gledanje transicija sa virtualnim osciloskopom, on-line promena vrednosti elemenata i njihova promena u odzivu PSU
...

---------------------------------------------


Pogledajte si za početak ovu simulacijsku prezentaciju za TinaTI ver 9
i dobičete neku predstavu šta se sve može analizirati/simulirati

Razlika na kraju sa drugim simulacijskim SW je najverovatnije samo u GUI, to jest u grafičkom prikazivanju...

:-)

Najverovatnije ču otvoriti novu temu, recimo Simulacija audio pojačala sa TinaTI i tako sve u nove teme za svaku zvrst sklopova i njihovih simulacija .

Ko ima več dobra i dugotrajna iskustva u realnom svetu, taj ima "simulator" več ugradjen u glavi,
postizalo se odredjena znanja i iz raznoraznih dimnih signala, ...itd.

Ali danas bez simulatora skoro više namože.
Napravi se simulacija (naravno, imati dobre spice modele), popravlja se shemu, analizira, dobiju se tako odlične informacije o odzivu sklopa, kompenzacijama, snubberima, ...
i tek kad smo zadovoljni odzivom simulacije, pristupa se ka prototipu i počinju njegova "maltretiranja",
i spoznačemo u realnom labu, da smo te odzive negdje več vidjeli, ...u simulaciji!

I nije simulacija da pušta dim!

LP
Dragan
LP
Dragan
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Messages In This Thread
RE: Simulator-programi i modeli... - by TDA - 08-11-2014, 06:31 PM
RE: Simulator-programi i modeli... - by mikikg - 08-11-2014, 07:32 PM
RE: Simulator-programi i modeli... - by TDA - 08-11-2014, 07:54 PM
RE: Simulator-programi i modeli... - by mikikg - 08-11-2014, 09:04 PM
RE: Simulator-programi i modeli... - by samuki - 08-11-2014, 10:37 PM
RE: Simulator-programi i modeli... - by samuki - 08-12-2014, 11:08 PM
RE: Simulator-programi i modeli... - by Dragan100 - 08-11-2014, 10:37 PM
RE: Simulator-programi i modeli... - by TDA - 08-11-2014, 11:00 PM
RE: Simulator-programi i modeli... - by Dragan100 - 08-11-2014, 11:16 PM
RE: Simulator-programi i modeli... - by Braca - 08-12-2014, 09:36 AM
RE: Simulator-programi i modeli... - by Dragan100 - 08-12-2014, 12:23 PM
RE: Simulator-programi i modeli... - by Braca - 08-12-2014, 01:25 PM
RE: Simulator-programi i modeli... - by Dragan100 - 08-12-2014, 01:30 PM
RE: Simulator-programi i modeli... - by TDA - 08-12-2014, 01:11 PM
RE: Simulator-programi i modeli... - by Braca - 08-12-2014, 01:39 PM
RE: Simulator-programi i modeli... - by TDA - 08-15-2014, 06:18 PM
RE: Simulator-programi i modeli... - by Braca - 12-08-2014, 07:53 PM
RE: Simulator-programi i modeli... - by Braca - 12-21-2014, 09:27 PM
RE: Simulator-programi i modeli... - by TDA - 12-21-2014, 10:10 PM
RE: Simulator-programi i modeli... - by Braca - 12-21-2014, 10:29 PM
RE: Simulator-programi i modeli... - by samuki - 12-21-2014, 11:05 PM
RE: Simulator-programi i modeli... - by Braca - 12-22-2014, 12:13 AM
RE: Simulator-programi i modeli... - by Aca93 - 12-21-2014, 11:06 PM
RE: Simulator-programi i modeli... - by dlalkovic - 12-22-2014, 09:27 PM
RE: Simulator-programi i modeli... - by Braca - 12-21-2014, 11:43 PM
RE: Simulator-programi i modeli... - by Aca93 - 12-22-2014, 12:18 AM
RE: Simulator-programi i modeli... - by Braca - 12-22-2014, 12:44 AM
RE: Simulator-programi i modeli... - by Braca - 12-22-2014, 08:10 PM
RE: Simulator-programi i modeli... - by samuki - 12-22-2014, 08:23 PM
RE: Simulator-programi i modeli... - by Braca - 12-22-2014, 09:28 PM
RE: Simulator-programi i modeli... - by Dragan100 - 12-23-2014, 10:10 AM
RE: Simulator-programi i modeli... - by Braca - 12-23-2014, 11:16 AM
RE: Simulator-programi i modeli... - by Dragan100 - 12-23-2014, 10:15 AM
RE: Simulator-programi i modeli... - by Dragan100 - 12-23-2014, 03:55 PM
RE: Simulator-programi i modeli... - by Dragan100 - 12-24-2014, 09:01 AM
RE: Simulator-programi i modeli... - by Dragan100 - 03-04-2016, 04:53 PM
RE: Simulator-programi i modeli... - by Dragan100 - 03-05-2016, 10:57 PM
RE: Simulator-programi i modeli... - by vulejov - 03-06-2016, 08:46 AM
RE: Simulator-programi i modeli... - by vulejov - 03-06-2016, 04:30 PM
RE: Simulator-programi i modeli... - by Braca - 03-06-2016, 11:05 AM
RE: Simulator-programi i modeli... - by Dragan100 - 03-06-2016, 06:52 PM
RE: Simulator-programi i modeli... - by vulejov - 03-06-2016, 09:57 PM
RE: Simulator-programi i modeli... - by Dragan100 - 03-06-2016, 10:24 PM
RE: Simulator-programi i modeli... - by Dragan100 - 03-08-2016, 05:11 PM
RE: Simulator-programi i modeli... - by Dragan100 - 03-08-2016, 06:39 PM
RE: Simulator-programi i modeli... - by Dragan100 - 03-11-2016, 03:35 PM
RE: Simulator-programi i modeli... - by Dragan100 - 03-11-2016, 04:00 PM
RE: Simulator-programi i modeli... - by vulejov - 03-23-2016, 08:16 PM
RE: Simulator-programi i modeli... - by Dragan100 - 03-23-2016, 08:48 PM
RE: Simulator-programi i modeli... - by Dragan100 - 04-09-2016, 12:26 PM
RE: Simulator-programi i modeli... - by vulejov - 04-09-2016, 03:09 PM
RE: Simulator-programi i modeli... - by Dragan100 - 04-09-2016, 06:32 PM
RE: Simulator-programi i modeli... - by vulejov - 04-09-2016, 08:12 PM
RE: Simulator-programi i modeli... - by Dragan100 - 04-09-2016, 08:48 PM
RE: Simulator-programi i modeli... - by vulejov - 04-09-2016, 09:13 PM
RE: Simulator-programi i modeli... - by Braca - 04-09-2016, 11:26 PM
RE: Simulator-programi i modeli... - by vulejov - 04-10-2016, 09:04 AM
RE: Simulator-programi i modeli... - by Braca - 04-10-2016, 10:20 AM
RE: Simulator-programi i modeli... - by Dragan100 - 04-09-2016, 09:56 PM
RE: Simulator-programi i modeli... - by Dragan100 - 04-09-2016, 09:24 PM
RE: Simulator-programi i modeli... - by vulejov - 04-09-2016, 09:29 PM
RE: Simulator-programi i modeli... - by Dragan100 - 04-10-2016, 12:53 PM
RE: Simulator-programi i modeli... - by vulejov - 04-10-2016, 01:15 PM
RE: Simulator-programi i modeli... - by Dragan100 - 04-10-2016, 06:37 PM
RE: Simulator-programi i modeli... - by vulejov - 04-10-2016, 08:48 PM
RE: Simulator-programi i modeli... - by Dragan100 - 04-10-2016, 10:58 PM
RE: Simulator-programi i modeli... - by vulejov - 04-11-2016, 05:27 AM
RE: Simulator-programi i modeli... - by Dragan100 - 04-11-2016, 11:28 AM
RE: Simulator-programi i modeli... - by vulejov - 04-11-2016, 02:52 PM
RE: Simulator-programi i modeli... - by Dragan100 - 04-11-2016, 06:47 PM
RE: Simulator-programi i modeli... - by vulejov - 04-11-2016, 09:02 PM
RE: Simulator-programi i modeli... - by Braca - 04-12-2016, 09:17 PM
RE: Simulator-programi i modeli... - by vulejov - 04-13-2016, 07:17 AM
RE: Simulator-programi i modeli... - by mikikg - 04-13-2016, 08:35 AM
RE: Simulator-programi i modeli... - by mikikg - 04-15-2016, 10:29 PM
RE: Simulator-programi i modeli... - by Robert63 - 04-15-2016, 10:52 PM
RE: Simulator-programi i modeli... - by Leonardo - 11-24-2016, 08:43 AM
RE: Simulator-programi i modeli... - by vsavic - 01-02-2017, 12:48 AM
RE: Simulator-programi i modeli... - by Braca - 08-02-2019, 10:58 PM
RE: Simulator-programi i modeli... - by Braca - 08-03-2019, 11:45 AM
RE: Simulator-programi i modeli... - by Dragan100 - 08-03-2019, 12:12 PM
RE: Simulator-programi i modeli... - by Braca - 08-04-2019, 08:59 AM
RE: Simulator-programi i modeli... - by Braca - 01-20-2020, 09:24 AM
Simulator-programi i modeli... - by mikikg - 05-31-2013, 06:09 AM
Simulator-programi i modeli... - by mikikg - 05-31-2013, 09:13 AM

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