CS264005B1 - Circuit for controlled current source - Google Patents
Circuit for controlled current source Download PDFInfo
- Publication number
- CS264005B1 CS264005B1 CS818696A CS869681A CS264005B1 CS 264005 B1 CS264005 B1 CS 264005B1 CS 818696 A CS818696 A CS 818696A CS 869681 A CS869681 A CS 869681A CS 264005 B1 CS264005 B1 CS 264005B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- current source
- circuit
- controlled current
- flow
- ynpabjíehhh
- Prior art date
Links
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 description 2
- 230000004907 flux Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/34—DC amplifiers in which all stages are DC-coupled
- H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is DC
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
- G05F1/561—Voltage to current converters
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is DC
- G05F3/10—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/20—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
- G05F3/22—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Nonlinear Science (AREA)
- Control Of Electrical Variables (AREA)
- Amplifiers (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
264005 H3o6peTaTenH: SnbiiiHep, Χοροτ
Kpe6ejib, XaHC-36epxapflTIlaHKpaTií, PaňHepΠορτεε, Knayc-fíHTepPeflur, Fepfl ΟχεΜΗοε ycTpoňcTBÓ ftnH ynpaBJíHeMoro HCTonHHKa τοκβ
OSnaCTb npHHfBHeHHH H3O6peTeHHH H3o6peTeHne xacaeTCH ynpaBJíHeMoro ucTOHHHKa Toxa, BbixoRHoft tok κοτορογοconpoBosflaeT HaripnaceHne ynpaB.neHHH no MaKCHManbHoro 3HaneHHH, ocTaeTcs TipuflajribHeňweM noBwmeHHH HanpHMceHHH ynpaBJíeHHH Ha stom ypoBHe, npHHHMaeT πρκoTKpwTOM Bxose rjih ΗβπρκχβΗΗΗ ynpaBJíeHHH 3aflasaeMoe 3HaneHHe, MeHbmee hjihpaBHoe MaKCHMajibHOMy sHaňeiiHio, πρεηποητΗτβπΒΗΟ b HHTerpajibHoň τεχΗΗκβ, Ha-npHMep ftnH ycTpoňcTB peryjiHpoBKH hpkocth hjih tpomkocth.
XapaKTapHcTHKa HssecTHbix τεχΗΗπεεκκχ pemeHHň B HHTarpajIbHOft ΤβΧΗΗΚβ Η3ΒΘΟΤΗΟ ΗΟΠΟΠΗβΗΗβ HCTOHHHKa TOKa C TpaH3HCTOpaMH. B HCTOHHHKax ΠΟεΤΟΗΗΗΟΓΟ TOKa, B SMHTTePHyiO Ii;enb , BKJHOHaOTCH COIipOTHBJI8HHe,a K 6a3e. HCTOHHHK noCTOHHHOrO HanpHJKeHHH H3 flHOflOB, ΗΗΟΓββ C KOMneHCanHeříTOMnapaTypHoň 3aBncnMOCTn, B ynpaBJíHeMOM hctovhhko τοκβ HanpHSteHHe '6a3bi H9-ΜβΗΛετεπ. B 3βΗΒκε WP G 01 R/215 734 npenna.raeTCH cxeMa hjih ynpaBJíHeMoro η ηοτοηηηκητοκβ c ycTaHóBKoft Ha cpeflHOM ypoBHe řípu bmcokoomhoď εχβΜε Bxona η πρκ npe-BbímOHHH OnpeflOJieHHÓro ΒΧΟΗΗΟΓΟ Η3ΠρΗ3ΚΘΗΗΗ . CxeMa paĎOTaef C BXOflHblM TpaH“ : 3HCTOPOM., κ 6a3e κοτορογο noflKJiioHeHo HanpaaceHHe ynpaBJíeHHH, a 3Μΐίττερ κοτο-poro noflKJttoneH b nHonnyio Henonxy, nepea κοτοργιο, η nepe3 3ΜΗττερΗω8 ποβτο-PHTenb OH ynpaBJíneT βηχοηηημ tokom. fíHoflKan ηεποηκβ πΗ-ςβετεπ οτ κετοΗΗΗκβnOCTOHHHOrO TOKa, KOTOPblň ΠΟηΚΠΜΗβΗ K HCTOHHHKy Η3ΠΡΗ3ΚβΗΗΗ πητηηηη , ToKOBOe3epKano, ποηκηιοΗεΗΗΟε TaKwe κ HCTOHHHKy HanpnweHHH πητηηηη, οβεεπεηΗΒβετ cnoMombio Tpaii3HCTopa, conpoTHBJíeHHH η βτορογο TpaH3HCTopa nepe3 nonojiHHTejib-HbS TpaH3HCTOP ΠΟΗΚΠΚΗίβΗΗε Η ΟΤΚΠΙΟΗεΗΗβ HaCTH flHORHOň ΐχεΠΟΗΚΗ. - 2 - · 264005 flnH ΗβκοτορΜΧ cjiynaeB πρημθηθηηη HexenaTenbHo, htoGm tok, nocne πρβΒΜπβΗΗπpxoflHoro HanpnxeHHH, npn κοτοροΜ ycTaHasnHBaeTCH MáxcHManbHbiň tok, Bepnyji-cn Ha3an Ha cpenHee 3HaneHne.
Iíejib H3o6peTeHHH
Uejibto H3o6peTeHHH HBJíaeTca ynpaBnneMbiň hctohhhk Toxa. H3JIOJKeHHe CymHOCTH Η3θ6ρβΤβΗΗΗ
Uenbio H3o6peTeHHH HBJíseTCB co3flaHHe ynpaBnneMoro HCTOHHHxa Toxa c ycTaHon—Koň npoMeacyTOHHbix 3HaqeHHň πρκ bhcokoomhoh cxeMe Bxofla h MaxcHManbHOM Toke, ,h B.cjiynae npesbiuieroiH ynpaBnniomero HanpHweHHH, cooTBeTCTByioinero MaxcHManbuo-,My Toxy. '
Corjiaciio H3o6peTeHnro, 3anana peniaeTcn τβΜ, ητο b cxěmě hjih ynpaBnneMoro hc—TOHHHKa Toxa c ohhhm bxohhmm TpaH3HCTopoM, x Gaae.xoToporo nonxnroněH.0 na-.ΠρΗΧΘΗΗΘ ynpaBJíeHHH, H 3MHTTep KOTOpOrO BKJItOHeH Β HHOflHyiO penOHXy H ynpaB-jiaeT BbixoflHbíM tokom nepe3 βμηττθρηηη ποβτορητθηβ h nepe3 hctohhhk Toxa «oJlapjIHHrTOHy, C HCTOBHHKOM noCTOHHHOrO Toxa , nOflXJHOBeHHOMy X HanpaxeHHiO rorra—HHH UJIH.riHTaHHH flHOflHOH ΡΘΠΟΗΚΗ H CO CxeMOH Τ3ΚΟΒΟΓΟ SGpKana, 3TO .TOKOBO6 ;3epxano nonxníoqaeTCH nepe3 ohhh hjih Hecxonbxo nnonoB nepen 6a3oň βχοήηογο ·TpaH3HCTopa, πρημθμ conporaBJíemie τοχοβογο 3epxana BbiČHpaeTCH TaxHM, hto tok6a3bi TpáH3HCTopa T2, yMHoxaeMbiň na κοΘφφΗφίβΗΤ ycHjieHHH no Toxy, GyneT Gonb-me, neM tok 6a 3μ βχοβ,ηογο TpaH3HCTopa. ΠρΗΗηΗπ paGoTw cnenyeT H3 onucaHHHnpuMepa ηοποβηθηκη.
ÍIpHMep HCnonHeHHH
Pucynox npeflCTaBJíHeT cxeMy cornacHo Η3ο6ρετεΗΗκ». Kax πρηηητο, TpaH3HCT0pbio6o3HaneHbi GyxBoíi T, flHOflbí GyxBoíi D conpoTHBneHHe SyxBoň R.
HanpHxeHHe ynpaBneHHH Ue noflxnwneHo x BbixonHOMy TpaH3HCTopy T3. Fro βμηττθρBKJironeH Mexny D5 h D6 b HnoflHyro nenonxy, cocToamyro H3 πητη ηηοηοβ (ot D4 noD8), h CBH3aH nepe3 D5 h D6 c 6a3OH 3MHTTepHoro noBTopHTenn T5. K T5 ποηκηιο-neH hctohhhk Toxa no HapnHHrTOHy, cocTOHiUHň H3 T6, T7 h R4. K HanpnxeHHio UsnoflXJnoneH hctohhhk ποοτοηηηογο Toxa, coctohihhíí H3 T4„ R2, D2, D3 h R3. 0hnmaeT, c oflHoň ctopohm, nonxnroneHHyH) x Macce flHOflHyK) nenonxy D4 no D8, cflpyroň, cxeMy τοχοβογο 3epxana, cocroHinyio H3 T1 , T2 h R1. Mexny κοηηβκτοροΜT2 h 6a3oň T3 BKmoneH nnon Dl. ConpoTHBneHHe R1 ÉbiGHpaeTCH mkhm, hto npnοτχρΜΤΟΜ Bxofle tok, npoxoflHinnň nepe3 Hero, Hecxonbxo Bbmie, ηθμ tok Gásw. Πρκ οτχρΜΤΟΜ Bxofle paGoTaéT T2 b pexHMe HacbiineHHH. IIoTeHnHan Ha 6a3e T3 on-penejineTCH, n3-ga ManeHbxoro 3Η3Β6ηηη Toxa qepe3 R1 rnaBHMM o6pa3OM, Hanpn-«eHHeM Ha.flHoáe D1. Ea3o-3MHTTepHbie h nnoflHbie nenu T3, D5, D4, T5, T6 η T7οπρεηεηπιοτ HanpsoKeHHe Ha R4 h, thkhm o6pa3OM, βμχοηηοϊι tok Ia. Πρκ BKJwneHHH HanpaxeHHH ynpaBneHHH Ue Ha Bxofle noBbnnaeTCH tok xonnexTopaTpaH3HCTopa T2. Oh nepexonHT b HopManhHbiň ρθχημ paGoTbi. IIoTeHnHan Ha TpaH-3HCTope T3 η, βμθοτθ c těm, βμχοπηοη tok Ia onpenennioTCH yxe Tonbxo Hanpk-xceHHeM Ue. HanpHxeHHe Ue perynnpyéMO p qnana3OHe ot-0 no Us, HanpHMep, Mex-ny 0 B h 15 B. HanHHan c onpeneneHHoro ηηπρηχθηηη, HanpHMep Ue = 1 B, 3a-nHpaeTca Bb]xon TpaH3HCTopa T3. UocTiirHyToe npn stom HanpnxeHHH 3HaneHHe ToxaImax ocTaHeTca, xax 3HaneHHe ηθομπι,θηηη. - 3 264005
BbixoflHoň tok MóHteT 6μτβ yBeJinneH npn otkpmtom BXone no 3HaweHHH Imax nyreMnoflKJimeHHH flonójiHHTenbHbix ahokob MejFfly cxeMoň τοκοβογο 3epKana h 6a3oň Βχο,η-·’ΗΟΓΟ TpHH3HCTOpH.
SaaBKa Ha Η3θ6ρετεΗΗε
CxeMHoe ycTpoňcTBo ajih ynpaBJíneMoro ηοτοηηηκη Toica c bxoahmm TpaH3HCTopoM,κ 6a3e κοτοροΓο ποακημηθηο HanpfOKeHHe ynpaBJíeHHH, η SMHTTep κοτοροΓΟ bkjho-neH.B AHoAHyio qenoHKy h ynpaBJíHeT bmxoahmm tokom c πομοιιφιο 3MHTT6pHoro ποβ-τορΗτβππ h hctohhhkom TOKa no flapjiHHrTo.Hy, flajiee, C HCTOHHHKOM ποοτοηηηογοT0K3, nOflKJlIOHeHHHM Κ ΗΗΠρΗϊΚΘΗΗΙΟ HHTaHHH flJIH ΠΗΤ3ΗΗΗ AHOflHOň ΑΘΠΟΗΚΗ, flSJíee,co cxeMoň τοκοβογο 3epKana, xapaKTepn3yeMoň τβΜ,' hto cxeMa τοκοβογο 3epKananoflKJiioHeHa κ 6a3e βχοαηογο TpaH3ncTopa (T3) nepe3 oahh ηπη HecKOJibKO ahoaob(Dl), πρηηθμ, SHaneHHe οοπροτ.ηβηθηηη (R1) τοκοβογο 3epKana noflSnpaeTCH Ta-khm, HToĎbi yMHoxcaeMbiň Ha κοβΦΦηαηθητ ycHJieHHH no Toxy, tok 6a3bi TpaHancTopaT2, 6bin 6onbaie 3HatieHHH tokh 6a3bi βχοαηογο TpaH3HCTopa.
PeaioMe
CxeMHoe ycTpoňcTBo απη ynpaBJíneMoro ηοτοηηηκη TOKa H3o6peTeHne KacaeTca ynpaBjíHeMoro HCTonHHKa TOKa, βμχοπηοη tok κοτορογο cne-AyeT 3a HanpH«eHneM ynpaBJíeHHH no MaKCHMajihHoro 3Η3ηθηηη, ocTaeTcn npn flanb-HeítmeM noBbinieHHH ηηπρηκθηηη. ynpaBJíeHHH Ha stom ypoBHe η πρηηημηθτ πρκ ot-kpmtom Bxoae ajih ΗΗπρπ)κθΗΗΗ ynpaBJíeHHH 3anaBaeMoe 3HaneHHe, Meiibtnee hjih paB-Hoe MaKCHMajibHOMy 3HaneHHK), npennonTHTeJibHO b HHTerpajibHoň τεχΗΗκε, HanpHMepΑΠΗ yCTpoňCTB ρεΤγΠΗρΟΒΚΗ HpKOCTH HJIH rpOMKOCTH.
Hejibio Η3θ6ρετ·εΗΗΗ HBJíHe.TCH co3naHHe ynpaBJiH8Moro ηοτοηηηκη Tona c ycTaHOBKoňnpoMescyToHHbix 3HanéHHň πρκ bmcokoomho# cxewe Bxofla h MaKCHManbHOM 3Η3ηθηηητόκε, a Taoce npn npeBbmieHHH HanpHaceHHH ynpaBJíeHHH, cooTBeTCTByramero μηκοη-MaJIbHOMy 3Η3ΗΘΗΗΙ0 TOKa.
CornacHo'H3o6peTeHHio,3aflaHa pemaeTCH τθμ, hto cxeMa τοκοβογο 3epKana ποΑκηιο-naeTCH κ 6a3e βχοαηογο TpaH3HCTopa aepe3 ohhh hjih HecKoJibKo αηοαοβ, πρΗ.ηβΜconpoTHBJíeHHe cxeMbi τοκοβογο 3epKana nofl6HpaeTcn tbkhm, hto6m yMHowaeMbiH Ha.κο3φφΗΗΗεΗτ ycHJieHHH no Toxy tok 6a3bi TpaH3HCTopa T2, 6mji fíojibme TOKa 6á3biBbrxoflHoro TpaH3HCTopa. IIpH3HaH0 Η3θ6ρετεΗΗεΜ no pe3yjii>TaTaM 3KcnepTH3bi, ocymecTBJíeHHoň Βθαομοτβομrio neJiaM Η3θ6ρετεΗΗϋ h Π3τθητοβ Γ,ΠΡ. 1 ηερτεχ 26A005
PŘEDMĚT VYNÁLEZU
Obvod pro řízený zdroj proudu se vstupním tranzistorem,k jehož bázi je připojen vstup ovládacího napětí a jehožemitor je přes diodový dělič a emitorový aledovač připojenna vstup zdroje proudu v Darlingtonově zapojení a dále sezdrojem stejnosměrného proudu pro napájení diodového děliěea připojeného k napájecímu napětí a dále s proudovým zrcad-lem, vyznáČující se tím, že proudové zrcadlo je připojeno k .bázi vstupního tranzistoru (T3) přes alespoň jednu diodu (Dl)
Claims (1)
- 264005
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD22692081A DD156339A3 (de) | 1981-01-12 | 1981-01-12 | Schaltungsanordnung fuer eine steuerbare stromquelle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS869681A1 CS869681A1 (en) | 1985-04-16 |
| CS264005B1 true CS264005B1 (en) | 1989-05-12 |
Family
ID=5528580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS818696A CS264005B1 (en) | 1981-01-12 | 1981-11-25 | Circuit for controlled current source |
Country Status (3)
| Country | Link |
|---|---|
| CS (1) | CS264005B1 (cs) |
| DD (1) | DD156339A3 (cs) |
| DE (1) | DE3139166A1 (cs) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3642167A1 (de) * | 1986-12-10 | 1988-06-30 | Philips Patentverwaltung | Stromspiegelschaltung |
| DE4111584A1 (de) * | 1991-04-10 | 1992-10-15 | Thomson Brandt Gmbh | Schaltung zur generierung sehr kleiner stroeme |
-
1981
- 1981-01-12 DD DD22692081A patent/DD156339A3/de not_active IP Right Cessation
- 1981-10-02 DE DE19813139166 patent/DE3139166A1/de not_active Withdrawn
- 1981-11-25 CS CS818696A patent/CS264005B1/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS869681A1 (en) | 1985-04-16 |
| DE3139166A1 (de) | 1982-08-05 |
| DD156339A3 (de) | 1982-08-18 |
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