CS245708B1 - Bc class power amplifier - Google Patents
Bc class power amplifier Download PDFInfo
- Publication number
- CS245708B1 CS245708B1 CS811993A CS199381A CS245708B1 CS 245708 B1 CS245708 B1 CS 245708B1 CS 811993 A CS811993 A CS 811993A CS 199381 A CS199381 A CS 199381A CS 245708 B1 CS245708 B1 CS 245708B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- transistor
- class
- coupled
- preamplifier
- base
- Prior art date
Links
- 201000004624 Dermatitis Diseases 0.000 description 2
- 208000010668 atopic eczema Diseases 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- 229920000473 Phlobaphene Polymers 0.000 description 1
- 101100240886 Rattus norvegicus Nptx2 gene Proteins 0.000 description 1
- 240000007591 Tilia tomentosa Species 0.000 description 1
- 240000006909 Tilia x europaea Species 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
- H03F3/3066—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the collectors of complementary power transistors being connected to the output
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
- H03F1/0244—Stepped control
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Compounds Of Unknown Constitution (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
-2- Κ3θ6ρβτθΗΗβ othochtch κ vcHJiHTeJiw mouihocth KJiacca BC,KOTOpwň ΜΟΧβΤ HaflTH ΠρΗΜβΗθΗΗθ B yCHJIHTeJIbHMX VCTpOHCTBaX, ΓΛβ Κ03φφΗΠΗβΗΤ ΠΟΛΘ3ΗΟΓΟ fleHCTBHH ΗΜββΤ ΠβρΒΟΟΤβΠβΗΗΟβ 3Ha-ΗβΗΗθ η Hcnojib5oBanne BwxoflHoro TpaHC®opMa'ropa He o6a3aTejibHO.
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He,aocTaTKOM 3Toro ycHJiHTejia mouihocth KJiacca BC ΗΒΛΗβτοΗτο, ito řípu cxeMe coejiHHeHHfl ofimero KOJiJieKTopa KpaňHHX TpaH—3hctopob He μοχθτ ncnnxib3OBaTBca cxeMa ynpaBJíeHHH c HactimeH-hwm TpaH3ncTopoM. KOTopafl npeaoxpaHaeT μοπιημθ TpaH3HCTopw otnpočoa lípu nepeXOflHMX npoueceax, BbI3BaHHbIX HHflVKTHBHblM xapaK-τβροΜ Harpy3KH η ηθο6χολημο BKJiwiqeHHe cnemiajibHoň cxenw TaKHMxe npeflHa3HaqeHHeM. flpvroň HeflocTaTOK oto to, hto KpaňHne TpaH3HCTopwOBH3aHbi no cxeMe očmero KOJiJieKTopa n aTaKvwiunň TpaH3HCTop,paSoTawiímn b pexHMe KJiacca A. noJixeH nocTaBJíHTb aMnjiHTyny, 6ojibiue neM ncxonHVw aMnnnTvnv, ητο ηθβο3μοχηο η πρηβο,πητ κHenOJIHOMy HaCbímeHHM) KpaMHHX MOUÍHWX TpaH3HCT0p0B - CHHHteHHe MaK-CHMajIbHOH BO3MOXHOÍÍ MOUIHOCTH Η K ĎOJIbUIHM HCKaxeHHHM ΒΜΧΟΛΗΟΓΟCHmajia b caMOM aTaicywmeM KacKane. HenocTaTKOM flBJíaeTCH h to,tto TpaH3HCTop, paĎOTámuiň b pexHMe KJiacca A, noJixeH 6biTbBblCOKOBOJIbTHblM.
CymecTByMT cxeMbi ycHJiHTejieií mohihocth KJiacca BC. npnκοτορΜΧ TpaH3HCTop, paSoTamuinfl b KJiacce C, ynpaBJíaeTCH noc-pencTBOM neHepoBoro nnojia TpaH3ncTopa, pafioTaromero b pexHMeKJiacca B. lípu btom n3 6eramTcn BbiiueyKa3aHHwe HenocTaTKH, ho3a cqeT toto 3HaqiiTejibH0 CHHxaeTCH κοθΦΦηηηθητ nojie3Horo neň-CTBHfl η 3TO OCOĎeHHO CHJIbHO B OĎJiaCTH KOMMyTaUHH HCTOMHHKOBnHTaHHH. 3to ecTb Ďojibmofl He/iocTaTOK TaKofl cxeMbi ynpaBJíeHHH 245708 -4-
TpaH3ncTopaMH, fleflcTByiomHMH b peKHMe KJiacca C, TaK KaK TpaH-3hctop paĎOTaeT npoflojnKHTejibHee Bcero hmchho b oČJiacTH kom-MyTanHH. TaKHM o6pa3OM 3aTparnBaeTca caMMň ochobhoíí noKa3a-τθλκ ycHJiHTGJin cjiacca BC - ero bmcokhh cpeflHecTaTHHecKHň κο3φ- φΗΙίΗβΗΤ ΠΟΛβ3ΗΟΓΟ ΛβΗΟΤΒΗΛ. 3aaaueň Η3θ6ρβτθΗΗ« ηβληθτοη co3flaHne μοιιιηογο ycíuiH- τβΛΗ KJiacca BC, nosBOjimomHM ynpaBjíHTb cxeMofl HacwmeHHMM TpaH—3HCT0P0M. KOTOpafl BbinOJIHHCT ftyHKIJHHI 3aillHTM OT nepexOflHMX npo-UeCCOB, BbI3BaHHbIX HH^yKTHBHblM xapaKTepoM Harpy3KH, exeMa yn-paBJICHHH 0K0H6HHMM MOIQHMM 6JIOKOM - ΜΟ)ΚθΤ ΘΓΟ paCKOJieČJIHBaTb flO MaKCHMaJIbHO BO3MOJKHOÍÍ βΓΟ MOH(HOCTH H nO3BOJIKTb HCnOJIb3OBaHHe HI13-KOBOJIbTHMX TpaH3HCTOpOB TaK, TTO CXCMa ynpaBJíeHHfl ΟΚΟΗβΗΗΜΜďjiokom h exeMa ynpaBJíeHHfl TpaH3HCTopaMH, pačoTaiomHMH b peatHMeKJiacca C, 6mjih 6w τβκημμ, hto ohm ηθ CHraajin κοβΦΦηιιηθητ nojie3-Horo fleňCTBHH, xapaKTepHbifl /xjih ycMJiHTejifl BC. 3Ta 3aflana pemaeTCH cjieflywmHM o6pa3OM: ycHJiHTejib moiu-hocth KJiacca BC, coflepatamníi CHMMeTpHHHwň flBvxTaKTHMň npeíiBa-puTejibHbifl ycujiHTejib h npoMexyTOHHbiň npejiBapHTejibHbiň ycHJiHTejib,BMXOflbl ΚΟΤΟρΟΓΟ CBfl3HHb! C JIByMfl MOlUHblMH nJieiaMH yCHJIHTCJIH,o/iho MomHoe njieqo cBH3aHo c nojioMTejibHMMH nojiwcaMH hctoihh-kob nuTaHHH, a apvroe - c oTpHuaTejibHWMH nojitocaMu hctohhh-kob nHTaHHH TaK, Ίτο 06a MomHbie rijieya h mx cooTBeTCTBywmnenpoMRJKyTOTHbie npeaaapHTejibHwe KacKa/iw BnojiHe chmmctphthwh, aCOOTB.CTCTBywmHe JpaH3HCTOpbI ΗΜΘΜΤ npOTHBOnOJIOJKHbie^ΠρΟΒΟ/ΙΗΜΟΟ-TH, OflHH ΒΜΧΟΛ/ΟΗΜΜΘΤρΗΉΗΟΓΟ flByXTáKTHOTO ΠρeflBapHTeJIbHOTOycHJWTeJiH CBfláaH c ojihhm bxmjiom npoMewyTomioro npeflBapHTejibHo-ro ycHJMTCJiH, Bhixoji κοτοροΓΟ CBH3aH c τρaH3HCTopom, paĎoTaiomHMb Kjiacce B, OTjmqawmuMCfl τθμ, κτο o«hh Bbixo/i npOMeacyTOHHoronpejiBapHTeJibHoro ycHJiHTeJia CBflsaH flHpeKTHO c 6a3Oň TpaH3HCTopap-n-p-Tuna, paóoTawmero b Kjiacce B, h nocpeacTBOM pe3HCTopa cbh- 245708 5- 3aH c 3MHTTepoB cpaBHHHiinero n-p-n TpaH3Hcropa. ΚοΛΛθΚτορ TpaH—3HCT0pa, paSoTawmero b KJiacce B: CBB3aH c ηκτηβημμ bwboaom Ha-rpV3KH, C KOTOpWM, nOCpeflCTBOM npeflOXpaHHTeJIbHOrO flHO.ua, OflHO“HanpaBfleHHO 6a3OBOMy TOicy η,θπη, CBtnaHa 6a3a cpaBHawmero n-p-nTpaH3HCTOpa, KOJIJieKTOp ΚΟΤΟρΟΓΟ COeflHHeH ,ίΧΗρθΚΤΗΟ C 6a3 0ňp-n-p TpaH3HCTopa, paĎOTawmero b KJiacce C. Βτοροϋ buxoa npo-MexyToqHoro npeflBapHTejibHoro ycHJiHTejia cBH3aH c 3Μ«ττβροΜTpaH3HCTopa, pačoTawmero b KJiacce B η b toh xe chmoh τοπκβ cbh 3aH κοΜΜγτπρywinHň αηοα η κοτιηβκτορ TpaH3HCTopa, pa6oTawmero * b KJiacce C. Ahoa KOMMyTHpvwuero fluofla CBH3aH c nojioxHTejibHMMnOJHOCOM HH3KOBOJIbTHOrO HCTOHHHKa ΠΜΤΟΗΗΗ, a 3ΜΗΤΤΘΡ TpaH3HC —Topa, paĎOTammero b KJiacce C cbh3íih c nojioxHTejibHUM nojnocoMBMCOKOBOJIbTHOrO HCTOHHHKa. ΌΜΗΤΤβρ CpaBHflKHIierO TpaH3HCT0panpn ΠΟΜΟΠΙΗ 3ΜΗΤΤΘΡΗ0Γ0 pO3HCTOpa CBH3aH C 3βΜΛθΗ.
IlpeHMymecTBa ycHJiHTejia mou(hocth KJiacca BC cjieflyromne:no3BOJiaeT ynpaejieHHe cxeMofl TpaH3HCTopoM, κοτορΜΗ BwnojiHaeTKpoMe cbohx ynpaBJíKwmnx 0yHKUHH h 3amHTy KpaflHero Kacna a otnepexoflHbix nponeccoB, bu3bhhhmx HHflyKTHBHHM xapaKTepoM Har-py3KH. CxeMa ynpaBJíeHHH KpaňHHM mojhhmm ďjiokom pacKOJiefljiHBaeTero flO MaKCHMaJIbHO B03M0XH0fl ero MOIUHOCTH Η nO3BOJIHeT πρΗΜΘ-ΗβΗΗβ HH3K0B0JIbTHMX TpaH3HCT0p0B. ΠρΗ 3T0M ΚΟΟφφΗΑΗβΗΤ ΠΟ- jie3Horo fleňcTBHH He cHHxaeTca, a coxpaHaeTca αοοτητοηηο bm-COKHM - COOTBeTCTBywmHM Kjiaccv BC.
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yCHJIHTeJIb 2, BMXOflM KOTOpMX CBH3aH6I C flByMfl MOIUHMMH njieaaMHycHJiHTejia. Oaho MomHoe njieno CBa3aH0 c noJioxHTejibHMMH nojiw-caMH hctohhhkob πητηηηκ, a flpyroe - c οτρηηατθλβημμη noniocaMH 245708 hcto4hhkob riHTaHUH tsk, Ητο 06a MOii(Hue ruieqa h hx οοοτβθτοτ-Bywmne npoMextyTO^Hwe npeaBapHTenbHbie ycHJiHTejibHwe KacKajiMBnOJIHe ΟΜΜΜΘΤρΗΗΗΜ 3. a COOTBeTCTByWlUHe TpaH3HCTOpbl ΗΜΘΙ0Τnp OTU B OnOJIOXHbie ΠρOBOflHMOCTH. OflHH BbIXOA ΟΗΜΜβΤρΗΤΗΟΓΟ flByX-TaKTHoro npeflBapHTejibHoro ycHJiHTejifl 1 CBH3aH c οληημ bxoaomnpoMexyTOHHoro npeflBapuTeJibHoro ycHJiHTejia 2, bwxoji κοτοροΐΌCBH3aH c TpaH3ncTopoM 4, paĎOTawmMM b KJiacce B. Oahh βμχολnp0MejKyT0 4H0r0 npeflBapHTeJIhHOrO yCHJIHTeJIfl 2 CBfl3aH ZWpeKTHOc 6a30ň TpaH3HCTopa p-n-p-THna, pa#OTawiuero b KJiacce B 4, hnoepe,acTBOM pe3HCTopa 5 - c οΜηττβροΜ cpaBHHWiuero n-p-n TpaH—3HCTopa 6. ΚοΛπβκτορ TpaH3HCTopa, paČOTawiuero b KJiacce B 4CBH3aň C aKTHBHMM BWBOflOM Harpy3KH 7, C KOTOpblM, nOCpeflCTBOMnpefloxpaHHTejibHoro jih o/i a 8. o/iHOHanpaBJíeHHoro 6a3OBOMy TOKynenn, cBH3aHa 6a3a cpaBHawiuero n-p-n TpaH3ncropa 6, KOJiJieK-τορ κοτοροΓΟ coeanHeH jmpeKTHO c 6a30ň p-n-p TpaH3HCTOpa, pa-6oTawmero b KJiacce C 9. Βτοροη bwxoa npoMewyroHHOro npeaea-pnTejibHoro ycHJiHTejifl 2 CBH3aH c 3MHTTepoM TpaH3ncTopa, pa6o-Tawmero b KJiacce B 4 h b toh xe caMOH τοπκβ CB«3aH kommvth-pyromiin anofl 10 h kojijwktop TpaH3HCTopa, paSoTamiuero b KJiacce3 9 TaK, bto anon KOMMympyioiuero ano/ia 10 cBH3aH c noJioxn-TejibHMM nojiHtcoM nn3KOBOJibTHoro HCTOitiHKa nnTaHHH +E^, aΒΜΗΤΤθρ τρaH3HCTopa, paĎoTaioinero b KJiacce C 9, CBH3aH c no-JIOXHTeJlbHblM nOJlMCOM BblCOKOBOJlbTHOrO HCTOMHHKa ΠΗΤΒΗΗΗ +E£. ·OMHTTep cpaBHKiomero TpaH3HCTopa 6 nocpeacTBOM 3μηττθρηογοpe3HCTopa οβη3ηη c 3eMJien.
HeňcTBue ycHJiHTejifl moiuhocth KJi^cca BC cjiejiywiuee: Πρπ noKoe qepe3 TpaH3HCTopbi 2^poMexyToqHoro npefl-
BapnTejibHoro ycn/iHTeJia ycTaHOBJíneTCH MaKCHMajibHwň tok, 6jih3-khh κ TOKy nx HacbineHHH, npnieM TpaH3HCTopw, paČOTawmHe bKJiacce 4,4' ycTaHOBJíneTCH MHHHMajibHWň tok ποκοη, a TpaH3HC-Topw, paČoTawinHe b KJiacce C 9.9' OKa3biBawTca 3aKynojMeHHbiMH. 245708 7« Πρπ nocTynjieHHH CHTHaaa, b 3aBHCHM0CTH ot ero μομθητηογο no-papHTeTa, o/iho ruie^o ocTaeTCH 3aKynopeHHHM b to βρθμα κάκnpyroe OTKynopHBaeTca H3-3a 3aKynopHBaHHH cooTBecTByromeroHacwmeHHoro řípu ποκοβ TpaH3HCTopa 2 hjih 2* npoMexyTOHHoronpeflBapHTejibHoro ycHjiHTeJin. Torna, Korná ΜΟΜθΗΤΗΟβ 3HaneHHeBXo/iHoro CHrHajia HapacTaeT no ypoBHH οκοηο 50% MaKCHMantHoro,C03nawTCH ycjioBHH oTKynopHBaHHH cpaBHBKmero TpaH3HCTopa 8hjih 8 h oTTnyna ynpaBJíeHHe TpaH3HCTopoM, paĎOTawinHM b KJiacceC 9 hjih 9'. Tok ποοτιθ,πηθγο TpaH3HCTopa προτθκββτ qepe3 TpaH-3HCTop KJiacca B, κοτορκπ Torna HBJíaeTca HacwweHHMM. 245708 -8-
ΦΟΡΜΥΛΑ H30ÉPETEHHA
yCHJIHTeJIb MOmHOCTH KJiaCCa BC, COflepXCamHfi ΟΗΜΜβΤρΜΗΗΜΗflByxTaKTHMM npeflBapHTe/ibHbift η προΜβκγτοΊΗΗΑ npeÁBapHTertbHMfi ycwJIHTeJIb, BHXO0H KOTOpblX CB«3aHW C OÓOHMH MOIUHblMH ΠΛβΊβΜΗ yCHHH—ΤβΛΗ, πρΗΜΘΜ OflHO MOIUHOe ΠΛβΊΟ CBH3HHO G ΠΟΛΟΚΗΤGJlbHHMM ΠΟΛΜ-CaMH HCTOHHHXOB ΠΗΤβΗΗΗ, a ΛρνΓΟθ - C OTpHqaTeHbHMMH nOBWCaMHHCTOHHHXOB ΠΗΤΒΗΗΗ ΤβΧ, HTO O6a MOIUHbie ΠΛβΗΗ Η HX COOTBeCTByiO-mne npoMexyTOTHwe npeflBapHTeabHwe ycHnHTenbHwe xacxaflw βποληθΟΗΜΜθΤρΗΗΗΜ, a COOTBGTCTBywmHG TpaH3HCT0pbI HM6I0T ΠρΟΤΗΒΟΠΟΛΟΚ-Hwe npoBOflHMOCTH, oflHH bmxoa CHMMejpHHHoro flByxTaKTHoro npeflBa-Ρητθλβηογο ycHnHTenfl cBH3aH c oflHHM BxoflOM npoMGKyTOHHoro npefl-BapHTenbHoro ycHnHTena, βμχολ κοτοροτο ceasaH c TpaH3HCTopoM,paSoTaioiuHM b xnacce B, οτληηημιιιημοη τθμ,^το οληη βμχολ προΜβ-KyTOHHOrO πρΘΛΒΟρΗΤΘΛΕΗΟΓΟ yCHHHTenfl <"2) ΟΒΗ3ΗΗ ΛΗρθΚΤΗΟc 6a30ň TpaH3HCTopa p-n-p-Tuna, paĎOTawmero b icnacce B.U) unocpencTBOM pe3HCTopa Í5) - c 3ΜΗττβρθΜ cpaBHHiomero n-p-nTpaH3ncTopa Í6), κοΛΛβκτορ TpaH3HCTopa, paĎOTawmerO b xnacceB (4) CBH3aH C aXTHBHblM XOHIJOM HarpySXH (7)., C KOTOpbIM, noc-peacTBOM npe,aoxpaHHTenbHoro nnona Í8) oxiHOHanpaBneHHoro 6a-30B0My TOKy nenu, CBH3aHa 6a3a cpaBHawmero n-p^-n TpaH3ncTopa(6), ΚΟΛΛΘΚΤΟρ κοτοροτο ΟΟΘΛΗΗθΗ ΛΗρθΚΤΗΟ C Ďa3OH p-π-π TpaH—3HCTopa, pa6oTa»mero b icnacce C Í9) Tax, ητο Βτοροβ βμχολ προ-MGKyTOHHoro πρeaBapHTenbHoro ycHHHTenfl (2) CBfl3aH c bmht-TepoM TpaH3HCTopa, pa6oTawnero b xnacce B (4) n b toh κβCaMOH ΤΟΗΧβ ΟΒΗ3ΒΗ KOMMyTHpVWIHHH flHOfl Í10) Η ΚΟΛΛΘΚΤΟρ TpaH—3HCTopa, paÓOTawmero b xnacce C (9) ,Tax, tto aHOfl xoMMyTnpyw-mero flHOfla ílO)CBH3aH C ΠΟΛΟΚΗΤβΛΧΗΜΜ ΠΟΛΝΟΟΜ ΗΗ3ΧΟΒΟΛΒΤΗΟΓΟHCTORHHxa nHTaHHfl ř+E^), a BMHTTep TpaH3HCTopa,pa6oTaiomero bΧΛΗΟΟθ C Í9) CBH3aH C nonOXHTenbHWM ΠΟΛΜΟΟΜ BblCOXOBOnbTHOrO 245708 -9- HCToqHHKa πητβημη πρκΗβΜ θΜκττβρ cpaBHHiomero π-p-p TpaH3HCTopa (6) npa πομοιηη 3ΜΜΤτθρΗ0Γ0 pe3HGTopa(lí) CBH3aH c 3eMJieň. 245708
Cr~ 10- AMMOTAUMfl
yCřlJliiTEJih >W0CTM KJIACCA BC
HaoSpeTeHne othochtch k ycmiHTejiio mouihocth -icnaccaBC. KOTOpMÍÍ MOJKBT HaflTH ΠρΗΜΘΪΙβΗΗΘ B γΟΗΛΗΤβΛΗΗΜΧ yCTpOíICTBaX.
Co3/iaHitHň npa bomoiuw Η3ο6ρβτβΗΗΗ ycwanTeHH wom-hocth Kjiacca BC copepraT οιιμμθτρμιιημΠ AByxTaKTHMfl npejnuia-pHTeJibHMii ycnjipTejii> h apoMexyTOHHwfi npeflBapHTepbHMfí ycii-JlHTeJIb, BMXOflW KOTOpHX CBH3aHM C flByMfl MO1UHMMH lUÍeiaMHycHJiHT^a, οληη βιιιχολ npoMexyToiHoro npeaeapMTejibHoro ycn-λητθλη CB«3aH ΛΗρβκτκ» c Sasow rrpan3HCTopa p—π-ρ Tuna, pafio-Tawmero b Kjiacce· B h racpepcTBOM pe3HC'ropa cmarc ομηττθ-poM cpaBHHiomero n-p-n tpan3HCTopa.KojineKTop TpaH3HCTopa κ/iac-ca B CBflsaH c ηκτηβημμ kohijom narpy3Kn, c kotqpwm, npn noMOíminpeptoxpanHTejibHoro ffHeaa cBjnana 6a3a cpaBHjiMmero n-p-n TpaH—3HCTOpa C ΚΟΛΠβΚΤΟρΟΜ» COeffHHeHHWM flHpeKTHO C 6a3OH p-n-prpaH3HCTopa,, paSoTawaiero b KJiacce C. Βτορ-oň bwxoa npoMewyroH-ΗΟΓΟ npeflBapHTe/IbHOrO yCH/IHTeJI/í CBH3aH C BMHTTepOM TpaH3HC-Topa, pa6oTa»Riero b raacce B h b ,τοβ xe c&MOň toto οβ.ίιΑη . C KOMMyTUpywmHM /DTOftOS Η ΚΟΛΠβΚΤΟρÓM TpaH3«CTopá, pafloTatomerob K/iacce. C. Αηολ Ko.MMjropyi«meró ano pa cs«3aH c πολοχμτθλκημμ \nOJIIOCOM ΗΜ3ΚΟΒΟΛΕΤΗΟΓΟ HCTOHHHKa nHTaHHH, a 3ΜΗΤΤβρ TpaH3HC—rťopa, pafioTaratero « wacce C,CBH3an c nonoxHTejibHWM nojiwcoMBWCOKOBOJIbTHOrO HCTOHBHKa. ΒΜΗΤΤβρ CpaBHHWmerO TpaH3HCT0panpH nOMOIUH 3ΜΗΤΤβρΗ0Γ0 peSHCTOpa CBH3aH C 3ΘΜΛβΩ. IIpeHMymecTBa νοΗΛΗΤβΛΗ moiuhoctw .Kjiaeca BC cJie-ayKiiniie: Η03Β0Λββτ ynpasaeHne oxeMofl: τρρκ3ΗθτορθΜ, βμπο,π--iiawiiiiiM κροΜβ cbohx ynjaBjíammux $yHKnwft w aainwTy KpawHeroKacKaaa ot nepexoaHwx npoiieccoB, BM3BaHHMX, ηηα^κτιιβημμxapaKTepoM narpy^KH. SoofóiteuiieHT no/iesHoro fleflcTBua He iiohh- 245708 11 xaeTčíi. a coxpanHeTca aocTaTouno.bmcqhím, cooTBeTCTEytoinHMKJiaccy BC. ynoTpeňnenHe RcxofíHoro Tpaac§opxaTopa hg očh~ 3 íitg,tu>ho . 245708
Claims (1)
- 245708 « 12 pSedmEt vynálezu Zesilovač výkonu třídy BC, obsahující symetrický dvoutaktní předzesilovač a mezi-frekvenční předzesilovač, jejichž výstupy jsou spojeny s oběma výkonnými větvemi zesi-lovače, přičemž jedna výkonová větev je spojena s kladnými póly napájecích zdrojů adruhá - se zápornými póly napájecích zdrojů tak, aby obě výkonné větve a jejich odpoví-dající mezifrekvenční předzesilovací stupně byly symetrické a odpovídající tranzistoryměly opačné vodivosti, jeden výstup symetrického dvoutaktního předzesilovače byl spojens jedním vstupem mezifrekvenčního předzesilovače, jehož výstup je spojen s tranzistorem,pracujícím ve třídě B, vyznačuje se tím, že jeden výstup mezifrekvenčního předzesilovače(2) je spojen s bází tranzistoru typu p-n-p, pracujícího ve třídě B (4) a přes odpor(5) s emitobem porovnávacího tranzistoru (6), kolektor tranzistoru, pracujícího ve tříděB (4) je spojen s aktivním koncem zátěže (7), se kterým je pomocí pojistné diody (8)stejnosměrného bázového proudu, spojena báze n-p-n tranzistoru (6), jehož kolektor je pří-mo spojen s bází p-n-p tranzistoru, pracujícího v třídě B (4) a v tomtéž místě je připo-jena komutační dioda 0 0) a kolektor tranzistoru, pracujícího ve třídě C (9) tak, že anodakomutační diody (10) je spojena s kladným pólem nízkonapěťového napájecího zdroje (+E1)a emitor tranzistoru, pracujícího ve třídě C (9) je spojen s kladným pólem vysokonapěťo-vého napájecího zdroje (+E2), přičemž emitor porovnávacího n-p-n tranzistoru (6) je po-mocí odporu (11) v emitoru spojen se zemí,. Uznáno vynálezem na základě výsledků expertizy, přovedené Institutem pro vynálezy azlepěovatelství, Sofia, BG. 1 výkres
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BG8047170A BG32251A1 (en) | 1980-03-31 | 1980-03-31 | Power amplifyier class bc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS199381A1 CS199381A1 (en) | 1984-03-20 |
| CS245708B1 true CS245708B1 (en) | 1986-10-16 |
Family
ID=3907290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS811993A CS245708B1 (en) | 1980-03-31 | 1981-03-17 | Bc class power amplifier |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5717210A (cs) |
| AT (1) | AT381191B (cs) |
| BG (1) | BG32251A1 (cs) |
| CS (1) | CS245708B1 (cs) |
| DD (1) | DD161117A3 (cs) |
| DE (1) | DE3110379C2 (cs) |
| FR (1) | FR2479604A1 (cs) |
| HU (1) | HU189500B (cs) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BG34745A1 (en) * | 1982-03-01 | 1983-11-15 | Vasilev | Power amplifier of class bc |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3483425A (en) * | 1967-08-31 | 1969-12-09 | Burroughs Corp | Controlled-bias current amplifier |
| DE1918618A1 (de) * | 1969-04-12 | 1970-10-15 | Licentia Gmbh | Transistorwechselstromverstaerker mit einer Gegentaktendstufe |
| FR2098772A5 (cs) * | 1970-07-27 | 1972-03-10 | Comp Generale Electricite | |
| US3753138A (en) * | 1971-06-03 | 1973-08-14 | Ampex | Amplifier system with continuously variable supply |
| DE2217208A1 (de) * | 1972-04-10 | 1973-10-18 | Vdo Schindling | Verstaerker fuer steuer- und regelkreise |
| JPS5915403B2 (ja) * | 1975-10-24 | 1984-04-09 | 株式会社日立製作所 | オンキヨウヨウシユツリヨクゾウフクキ |
| DE2705604C3 (de) * | 1976-02-12 | 1979-12-20 | Hitachi, Ltd., Tokio | NF-Leistungsverstärker |
| DE2623379C3 (de) * | 1976-05-25 | 1978-10-26 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Breitbandverstärker mit verbessertem Zeitverhalten |
-
1980
- 1980-03-31 BG BG8047170A patent/BG32251A1/xx unknown
-
1981
- 1981-03-17 AT AT123481A patent/AT381191B/de not_active IP Right Cessation
- 1981-03-17 CS CS811993A patent/CS245708B1/cs unknown
- 1981-03-17 DE DE19813110379 patent/DE3110379C2/de not_active Expired
- 1981-03-24 DD DD22867881A patent/DD161117A3/de not_active IP Right Cessation
- 1981-03-26 HU HU76581A patent/HU189500B/hu active IP Right Revival
- 1981-03-30 FR FR8106303A patent/FR2479604A1/fr active Granted
- 1981-03-31 JP JP4832181A patent/JPS5717210A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BG32251A1 (en) | 1982-06-15 |
| HU189500B (en) | 1986-07-28 |
| CS199381A1 (en) | 1984-03-20 |
| DE3110379A1 (de) | 1982-05-27 |
| DE3110379C2 (de) | 1983-12-08 |
| FR2479604B1 (cs) | 1984-12-21 |
| DD161117A3 (de) | 1984-10-24 |
| ATA123481A (de) | 1986-01-15 |
| FR2479604A1 (fr) | 1981-10-02 |
| AT381191B (de) | 1986-09-10 |
| JPS5717210A (en) | 1982-01-28 |
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