Zen Mod Napisano Mart 27, 2021 Autor Share #21 Napisano Mart 27, 2021 now, as all important is explained, time to mull about rail sense I know for sure that Pa is using something in that manner already in PL products, but him being Pa - solving everything with resistors and zeners as level shifters Mighty ZM , being chicken , I didn't up to recently even know that resistor can be described as CCS ( even if poor one), and I decided to use helper CCS ( see explanation) in form of ultramumbojumbo5$specialpart in M2 case - wee see that optodiode is fed with voltage from source resistors, where we have voltage in abundance, even shaving it with series resistor in SissySIT ( still damn good piece of work, if you ask Mighty Modesty Moi), I did use Hall chips ( tnx, Mighty Indra) ....... slope of voltage given at chip output is (2V5 to 5V)/(0 to 5A) ........ but effectively lower due to all summing and whatnot; didn't tried zeners as level shifters to decrease summing losses, but damn slope must be same , shifted with resistors or with anything else working, but I maybe didn't knew that I can do better, but I obviously wished that I can do better, regarding Iq and offset stability in rail voltage/temp/time domains so, if one choose to use ( minimal needed value of) rail resistors as current sense chain, even with 0R11 ( two of 0R22 in parallel) we have better effective voltage slope with current change ; numbers doesn't compute exactly, but from actual circuit, behavior is better than with Hall Chips now ....... say that current is 1A5 , as in LuDEF we have 165mV across 0R11 sense resistor......... ( I didn't want bigger value, sue me ...... later I got that voltage slope is enough with that value ) ..... but optoled needs nominally 1V1 to shine happily ............. so- there is a trick with helper CCS ( again, Pa using resistor there) , which is going to add some voltage to optoled - simple addition of 220R resistor and CCS pulling some current , we got additional 935mV from there, when you gotta that optoled is shining happy, everything is just matter of more or less voltage through series 0R11 all that nicely transposed to opto in lower rail, so we now have rail resistors, each of them having own optotransistor to pull current trough, optotransistors are summed together again, cap between two rail resistors, if using any of preceeding solutions with two mosfet gates ( one up, one down) we have symmetrical values of rail resistors, everything behaving nicely and polite and .......... almost boring (M2 is same boring, regarding that) so, what was left - put all these puzzle pieces on table and combine them much greater problem is to choose which one of wast number of permutations is worthy of becoming an amp, than drawing any of them if I forgot something , blame Pa Link to comment Podeli na ovim sajtovima More sharing options...
chakija Napisano Mart 27, 2021 Share #22 Napisano Mart 27, 2021 Dobro, a sad za nas malo sporije - kako bre to sviraaa u poredjenju sa Sit-ovima, B2J-ovima i ostalim F-jovima? Link to comment Podeli na ovim sajtovima More sharing options...
Vix Napisano Mart 27, 2021 Share #23 Napisano Mart 27, 2021 2 minutes ago, chakija said: Dobro, a sad za nas malo sporije - kako bre to sviraaa u poredjenju sa Sit-ovima, B2J-ovima i ostalim F-jovima? Ludo, burazeru, ludooo! Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Mart 27, 2021 Autor Share #24 Napisano Mart 27, 2021 svira dobro, to je bitno kolko je drugacije i kako - msm, W ce da kaze, kad bude teo ako bude teo duze od 3 reci msm, kako moze da svira anap koji ima isti THD spectra kao SissySIT a munut milijon db down? Link to comment Podeli na ovim sajtovima More sharing options...
Muad'Dib Napisano Mart 27, 2021 Share #25 Napisano Mart 27, 2021 pre 4 minuta, Zen Mod reče kako moze da svira anap koji ima isti THD spectra kao SissySIT a munut milijon db down? Več vidim nekog ko će da kaže da je Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Mart 27, 2021 Autor Share #26 Napisano Mart 27, 2021 Link to comment Podeli na ovim sajtovima More sharing options...
zerowaf Napisano Mart 27, 2021 Share #27 Napisano Mart 27, 2021 pre 19 časa, Zen Mod reče slusao pola sata, ugasio i otisao iz radionice ja vise ne pravim pojacala pre 43 minuta, Zen Mod reče damn good piece of work, if you ask Mighty Modesty Moi pre 29 minuta, chakija reče kako bre to sviraaa u poredjenju sa Sit-ovima, B2J-ovima i ostalim F-jovima? Izgleda da je nositelj crnog pojasa u skromnosti dao naslutiti. Ma kad god kaze da nesto valja ja vise ne preispitujem. Taj stvarno zna sta valja i zna to napraviti. EDIT: Cestitam! I nije proslo puno vremena otkad si pokazao one testne skalamerije do gotovog pojacala. Link to comment Podeli na ovim sajtovima More sharing options...
Muad'Dib Napisano Mart 27, 2021 Share #28 Napisano Mart 27, 2021 pre 4 minuta, Zen Mod reče Nego ispričaj ti nama kako može najlakše Sissy da se prepravi u ovo. Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Mart 27, 2021 Autor Share #29 Napisano Mart 27, 2021 zasto? Link to comment Podeli na ovim sajtovima More sharing options...
Muad'Dib Napisano Mart 27, 2021 Share #30 Napisano Mart 27, 2021 pre 1 minut, Zen Mod reče zasto? pa odkud znam. možda neko oće Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Mart 27, 2021 Autor Share #31 Napisano Mart 27, 2021 jok Link to comment Podeli na ovim sajtovima More sharing options...
Muad'Dib Napisano Mart 27, 2021 Share #32 Napisano Mart 27, 2021 Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Mart 27, 2021 Autor Share #33 Napisano Mart 27, 2021 Everybody lies Especially ones involved with Audio Market Muad'Dib je reagovao/la na ovo 1 Link to comment Podeli na ovim sajtovima More sharing options...
mutayu Napisano Mart 27, 2021 Share #34 Napisano Mart 27, 2021 Će da bude li kakva kit forma, s'oproštenjem? Link to comment Podeli na ovim sajtovima More sharing options...
Vix Napisano Mart 27, 2021 Share #35 Napisano Mart 27, 2021 A ja nikada nisam voleo raditi s'kitom, al eto nekome lepse tako Link to comment Podeli na ovim sajtovima More sharing options...
Muad'Dib Napisano Mart 27, 2021 Share #36 Napisano Mart 27, 2021 Nešto mi se javlja da će da radi još bolju verziju od ove. Ono sa još boljim odzivom. Bolje sačekati Link to comment Podeli na ovim sajtovima More sharing options...
mutayu Napisano Mart 27, 2021 Share #37 Napisano Mart 27, 2021 Dobro, pločice sa smd, ostalo će d'opravimo :-( Link to comment Podeli na ovim sajtovima More sharing options...
Vix Napisano Mart 27, 2021 Share #38 Napisano Mart 27, 2021 23 minutes ago, Mikorist said: Nešto mi se javlja da će da radi još bolju verziju od ove. Ono sa još boljim odzivom. Bolje sačekati Pa jel rek'o da nece vis' d'pravi pojacala? Link to comment Podeli na ovim sajtovima More sharing options...
Muad'Dib Napisano Mart 27, 2021 Share #39 Napisano Mart 27, 2021 pre 1 minut, Vix reče Pa jel rek'o da nece vis' d'pravi pojacala? Ama neki Indra Gandi stalno mu poboljšava proračun Link to comment Podeli na ovim sajtovima More sharing options...
zeljkor Napisano Mart 27, 2021 Share #40 Napisano Mart 27, 2021 Mozda bude ovde jos nekih iznenadjenja Link to comment Podeli na ovim sajtovima More sharing options...
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