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CnojKHbie cxeMLi jismiiobłk YM3¹!

http://interlavka.mrod.ru/stats02/lamp02.htm

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aHiieKC.IlHPeKT flanb dóbasnei-me npuHunnuanbHbie cxeMbi. 6ecnnaTHO

Kara nor 3neKTpnMecKMX cxeM; ciaTeii no snetopoHmce, noHotub na 4>opyMe.

www.rlocman.ru

rJDABHOE MEHiO

KARTA CAI4TA KOMnOHEHTbi ycmmsniA ha m/c ycmmsniA havt

flPEZlB-PHTETIbHblE

ni/ITAHI/IE

AKyCTKIKA BbITOEA.R 3J1-KA COT-T PA3HOE

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PEMOHT TEXHI/IKI/I PEiyioHTjpyroro BCRKA3 <PI/irH3

nPAIŹIC JETAJIEKI flPAI/lC HAŁOPOB B3P!Tb BJ1AHK ycnoBi/w noKynKi/i

nOZiPOBHblE Oni/ICAHKIFi JTO CAMOCTOPlTEnbHOrO l-13rOTOB.nEHH3

HOBbIE CTPAHMMbl

AHOZB/IPOBAME CXEMOTEXHI/IKA yM3M

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TPAHCOOPMATOP

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Cno>KHbie cxeMbi naMnoBbix ycunuTeneM OflHOKaHanbHbie cxeMbi YM3H

K cno>KHbiM cxeMaw naMnoBbi/ycunuTenew, b omHMHe ot yme paccMOTpeHHbix npocn>ix, mo>kho othocth Taxne YM3M, b KOTopbix npwcyTCTByioT b coBOKyriHOCTH Kax MHHHMyM Tpw H3 na™ cne,ay(oinMX npn3HaK0B: HMeeTca npeABapwTenbHbiń yciwHTenb, bwxoahoh KacKaA coSpau no AByxTaKTHOH cxeMe, nonoca MacroT ycHneHHa pa3AeneHa Ha abs h 6onee KaHanoB, BbKOAHaa M0ii(H0CTb npeBbiwaeT 2 Br, o6mee Konmecreo naMn b oahom KaHane ycnneHHa Sonbuje Tpex. BnpoMeM, MHoroKaHanbHbie cxeMbi He TaKywe Macro BcrpeMaioTca b paAwonioSHTenbCKOM TBopMecTBe, xoTa w Mauje, MeM 3to Aenana Hauia OTeaecTBeHHaa npoMbiuineHHOCTb b 6binbie roAbi. Ho Aa>«e 6e3 3Toro npn3HaKa, Bce paBHO npeAbiAyiA^aa cxeMa 6onrapHHa Kyceea He Boiuna b MHcno cno)KHbix, BeAb b oahom KaHane y Hee Bcero 2,5 naMnbi, cxeMa OAHOKaHanbnaa, a BbixoAHOH ycHnmrenb -OAHOTaKTHblH.

A bot Ha nepBbiH B3rnaA 6onee npocraa cxeMa BbicoKOKaMecTBeHHoro YM3M W3 cOopHHKa feHAUHa r. C. (MP5-1965) MMeeT AocraTOMHO OTntmHTenbHbK npii3HaK0B, mtoSw ee mojkho 6bino omecTH k pasp^Ay cno>KHbix (puc. 12). BbKOAHaa Mou^HOCTb ycwnuTena, co6paHHoro Ha Asyx naMnax 6<t>3n T«na TpHOA-nemoA npeBbiwaeT 4 Br, a KaMecTBO 3ByMaHMn - Bbitue bcbkmx noxBan. YcHnHTenb npeAH33HaaeH Ana Bocnpon3BeA©Hwa rpaMaanucn, nosTOMy ero bxoahoh cuman 250 mB, nonoca BocnpoH3BOAHMbix Macror 50...14000 npn HepaBHOMepnocTH AMX 1 %, K03<})ct)nifieHT HeniiHeHHbK ncKa>KeHHw He npeBbimaeT2 % npw HOMHHanbHOH moiahocth.

PucyHOK 12 flpnHi4HnnanbHaa cxeMa naMnoBoro ycunuTena r.C. TeHAwna

HawSonbuiyio cnojKHoerb npw Hanamsanm naMnoBbix ycHnmreneH moiahocth c AByxTaKTHbiM BbixoAOM Bbi3biBaeT oSecneaeHue cHMMeTpHMHOCTH o6eitx nnea ycwneHHa KacKaAa. (lepeA KOHCTpytcropoM croaT HecKonbKO 3aAa4, Koropbie cno>KHbi cbmh no ce6e, a b coBOKynnocTH ohh AOCTaenaioT cwnbHyto ronoBHyio 6onb, h6o ecnw hx ocTaBHTb HepeineHHbiMti, to npeiiMyiiiecTBa AByxTaKTHoro KacKaAa npeBpamaioTca b cboio npoTHBonono>KHOCTb. HanoMHio npeuMyiijecTBa AByxraicrHOH cxeMbi. 3ro u oTcyrcTBue Membix rapMOHWK b Harpy3Ke, mto yMeHbiuaeT K03<})(}5Hi4HeHT HenHHewHbix MCKa)KeHHM, h OTcyrcTBue He4eTHbix rapMOHHK b 4enw nuTaHna, mto oSnemaeT TpeSoBaHwa k SnoKiipytoiniiM KOHAOHcaropaM b cfjwnbTpe HCTOMHHKa nurraHiia w oSecneaMBaeT AononHHTenbHbiw 3anac ycTOHMHBOCTH ycwnHTena. Ha ycTowmiBocrb paOoTaeTTaioKe yMeHbmeHHe BbixoAHO« cmkocth naMn, mto cymecTBeHHO BnwaeT Ha pa6oTy YM3M Ha BbicoKtK MacTOTax. M, HaKOHeił, npw AByxTa«THOM coeAMHeHUH naMn B03pacTaeT BbixoAHoe conpoTHBneHiie KacKaAa, a sto no3BonaeT noAHaTb Ao6poiHOCTb KOHTypa, o6pa30BaHHoro nepBHMHOH oSmotkoh BbixoAHoro TpaHC(f)opMaTopa h napannenbHbiM eMy KOHABHcaTopoM, HynymuHTb cpunbTpytoinyK) cnoco6HOCTb HarpysKU b oiHoiuentiH Bbicmnx rapMOHHK none3Horo curHana.

PeujeHiie 3ąo,aMH peann3aqnn aoctohhctb AByxTaicrHOH cxeMbi ycnmiTena paccMOTpiiM Ha npnwepe AaHHoro YM3M. Bo-nepBbix, Hyx<HO noAo6parb naMnbi J11 w fl2, BepHee «x newroAHbie Mac™ TaK, MTo6bi y hmx 6bmw OflHHaKOBblMH XapaKTepHCTHKH, B MaCTHOCTM, BX0AH06 H BblXOAHOe COnpOTHBneHHe H npOHMl(aeMOCTb, paBeHCTBO KOTopbix no3BonaeT HaAeaTbca Ha coBnaAeHue cTaTimecKHx BAX o6enx naMn. Bo-Bropbix, cneAyeT oSecneMHTb CMMMeTpHMHbiń pex<nM no nocToaHHOMy TOKy, to ecrb OAHHaKOBoe aHOAHoe nHTaHiie u cMemeHiie, npuMeM, ecnw He yAanocb noAoSpaTb coBepuieHHO HABHTMMHbie naMnbi, a 3to rapaHTupoBaHO b SonbinnHCTBe cnyMaeB, to pex«iM Hy>KHO noAoSpaTb TaK, mtoSw npHBec™ xapaKrepncTHKM nam k ha^htumboctm. Kax bhaho Ha cxeMe (puc. 12), Bce pe>KMMHbie 3neMeHTbi w niiTatomwe HanpaiKeHMa o6eHX nneM OAWHaKOBbie, ho noAMepKHeM eu4e pa3 - sto bo3mo>kho TonbKO npii waohthmhocth xapaKrepHCTHK naMn. rioACTpoHKa pewiiMOB ao nonHow CHMMeTpwMHOCTii aBnaeica caMOCToaTenbHoń 3aAaMew Kasgąoro, kto nbiraeTca noBTopuTb MyjKyio cxeMy. B-TpeTbnx, Hy>KHO o6ecnemiTb ciiMMeTpiiMHOCTb Harpy3K«, b KaMecTBe KoropoH BbicTynaeT nepBHMHaa o6motk3 BbixoAHoro TpaHcc^opMaropa Tp1. flna sroro HaMaibiBator nepBHMHyio oSMOTKy abomhwm npoBOAOM b KonimecTBe 1500 bhtkob npoBOAa H3B 0,15 Ha cepAeMHHKe LU20x3O no 5 cnoaM b 500 bhtkob, nepeMe>Kaa hx 4 cnoaMH btopmmhoh o6motkh no 24 bhtkb Kax<AbiH, Bcero 96 bhtkob. CpeAHen tomkoh nepBHMHOH o6motkh, k kotopoh noABOAHTca Hanpa>KeHHe nHTaHHa, CTaHeT coeAHHeHHe HaManbHbK kohljob npoBOAa, a KOHeMHbie BbisoAbi noAcoeAHHaioTca k aHOAaM naMn. B-MeTOepTbix, Ha ynpasnaiomHe ceTKH o6eHX naMn BbixoAHoro KacKaAa HanpameHHe B036y»AeHHa noAaeica b npoTHBO<j>33e, nosTOMy c aHOAa TpnoAa U1 6onbuiaa MacTb CHrnana noAaeTca HanpaMyio Ha cetny neHTOAa J11, a MacTb ero c noACTpoeMHoro pe3Hcropa R12, Koropbin perynnpyeT aMimHTyAy bxoahoto CHrHana Ha ceTKe neHTOAa J12, noAaeTca Ha <})a30HHBepTop - tphoanaMnbi J12. KpoMe Toro, b ijenn ceTKH neHTOAa J12 Ana BbipaBHHBaHHa 0a3OBbix cooTHoiueHHH npH npoxo>KA@HHH bxoahwm CHrHanoM HeHAeHTHMHbix ąeneH AoSaaneHa LienoMKa R9-C5. BOTTenepb MOJKHO CMHTaTb AByXTaKTHblH KacKaA CHMMeTpHMHbIM H HaCna>KAaTbCa KaMeCTBOM 3ByM3HHa.

OAHaKO, 3to ea\e He Bce. flna toto, mtoSw YM3M pa6oTan euje ycroHMHBee npH t3khx npeAenbHbK Ana naMn 603n 3HaMeHHax BbixoAHOH MOU4HOCTH, secb ycHnHTenb oxBaaeH OOC c BbixoAa Ha KaTOA bxoahopo TpnoAa J11 Mepe3 AenHTenb R7-R4, a c Hero Ha ceTKy Mepe3 pe3HCTop R3. Mecmbie OOC HMeioTca TaioKe b k'3>kaom KacKaAe. Bbi3biBaeT yBa>KeHHe h cjjnnbTp b qenH nHTaHHa C10-flp1-C11,yMeHbiuaioinHH K03<J)tj)HqHeHr nynbca4HH aHOAHoro Hanpa>KeHHa ao 0,1%.

2012-02-11 16:39