Cov hauv paus pib Transistor - BD139 & BD140 Power Transistor Tutorial: 7 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25

Hav, ua li cas, Cov Menyuam! Akarsh nov los ntawm CETech.

Niaj hnub no peb yuav tau txais qee qhov kev paub txog lub zog loj ntawm qhov loj me tab sis loj dua hauv kev ua haujlwm transistor circuits.

Yeej, peb yuav tham txog qee qhov pib ntsig txog transistors thiab tom qab ntawd, peb yuav saib xyuas qee qhov kev paub muaj txiaj ntsig txog ib hom tshwj xeeb ntawm transistors series hu ua BD139 thiab BD140 fais fab transistors.

Thiab mus rau qhov kawg, peb tseem yuav tham txog qee qhov kev qhia tshwj xeeb. Kuv vam tias koj zoo siab. Yog li cia peb pib.

Kauj Ruam 1: Tau PCBs rau Koj Cov Haujlwm Tsim Khoom

Koj yuav tsum txheeb xyuas PCBWAY rau xaj PCBs online kom pheej yig!

Koj tau txais 10 qhov zoo PCBs tsim thiab xa mus rau koj lub qhov rooj kom pheej yig. Koj tseem yuav tau txais luv nqi ntawm kev xa khoom ntawm koj thawj daim ntawv xaj. Tshaj tawm koj cov ntaub ntawv Gerber mus rau PCBWAY kom tau txais lawv tsim nrog qhov ua tau zoo thiab lub sijhawm hloov pauv sai. Txheeb xyuas lawv online Gerber saib ua haujlwm. Nrog cov ntsiab lus khoom plig, koj tuaj yeem tau txais khoom pub dawb los ntawm lawv lub khw khoom plig.

Kauj ruam 2: Dab tsi yog Transistor

Lub transistor yog lub hauv paus tsev thaiv ntawm txhua lub tshuab hluav taws xob uas siv niaj hnub no. Txhua qhov khoom siv tam sim no nyob ib puag ncig peb muaj cov transistors hauv nws. Peb tuaj yeem hais tias cov khoom siv hluav taws xob analog tsis tiav yog tsis muaj transistor.

Nws yog lub cuab yeej siv hluav taws xob peb lub dav hlau siv los ua kom nrov lossis hloov pauv cov cim hluav taws xob thiab lub zog hluav taws xob. Nws yog tsim los ntawm cov khoom siv hluav taws xob feem ntau nrog tsawg kawg peb lub dav hlau rau kev txuas mus rau sab nrauv. Qhov hluav taws xob lossis qhov tam sim no siv rau ib khub ntawm transistor lub davhlau ya nyob twg tswj hwm qhov tam sim no los ntawm lwm khub ntawm lub davhlau ya nyob twg. Vim tias kev tswj hwm (tso zis) lub zog tuaj yeem siab dua li kev tswj hwm (tawm tswv yim) lub zog, lub transistor tuaj yeem ua lub teeb liab. Niaj hnub no, qee cov transistors tau ntim ib tus zuj zus, tab sis ntau yam ntxiv tau pom nyob hauv cov khoom sib txuas.

Cov transistors feem ntau yog tsim los ntawm cov ntshiab silicon, thiab qee qhov los ntawm germanium, tab sis qee qhov lwm yam khoom siv hluav taws xob ib nrab yog qee zaum siv. Ib lub transistor yuav muaj ib yam nkaus xwb ntawm tus neeg nqa khoom, hauv thaj chaw cuam tshuam transistor, lossis tuaj yeem muaj ob hom kev them nqi hauv cov khoom siv bipolar hlws ris transistor.

Transistors yog tsim los ntawm peb ntu 'hauv paus, tus sau, thiab tus xa tawm. Lub hauv paus yog lub qhov rooj tswj lub cuab yeej rau cov khoom siv hluav taws xob loj dua. Tus neeg sau khoom khaws cov nqi nqa khoom, thiab tus tso tawm yog lub qhov hluav taws xob rau cov nqa khoom ntawd.

Kauj Ruam 3: Kev faib tawm ntawm Transistors

Transistors yog ob hom:-

1) Bipolar Junction Transistors: Lub bipolar hlws ris transistor (BJT) yog hom transistor uas siv ob lub tshuab hluav taws xob thiab lub qhov ua tus nqa khoom nqa. Lub bipolar transistor tso cai rau me me tam sim no txhaj rau ntawm ib qho ntawm nws lub dav hlau los tswj cov dej loj tam sim no ntws los ntawm ob lwm lub dav hlau, ua rau lub cuab yeej muaj peev xwm ua kom nrov nrov lossis hloov pauv. BJTs yog ob hom hu ua NPN thiab PNP transistors. Hauv NPN transistors cov khoom siv hluav taws xob feem ntau yog cov nqa khoom nqa. Nws muaj ob txheej n-hom sib cais los ntawm txheej p-type. Ntawm qhov tod tes, PNP transistors siv Qhov raws li lawv cov neeg nqa khoom feem ntau thiab Nws muaj ob txheej p-hom sib cais los ntawm txheej n-type.

2) Field Effect Transistors: Transistors-effect transistors, yog cov transistors unipolar thiab siv tsuas yog ib hom kev them nqi. FET transistors muaj peb lub davhlau ya nyob twg lawv yog lub qhov rooj (G), Dej ntws (D), thiab Qhov Chaw (S). FET transistors tau muab cais ua Junction Field Effect transistors (JFET) thiab Insulated Gate FET (IG-FET) lossis MOSFET transistors. Txog kev sib txuas hauv Circuit Court, peb tseem xav txog plaub lub davhlau ya nyob twg hu ua lub hauv paus lossis txheej txheej. FET transistors muaj kev tswj hwm qhov loj thiab cov duab ntawm cov channel ntawm qhov chaw thiab ntws uas tau tsim los ntawm kev siv hluav taws xob. FET transistors muaj qhov nce tam sim no siab dua BJT transistors.

Kauj Ruam 4: BD139/140 Power Transistor Pair

Transistors muaj nyob hauv ntau hom pob khoom xws li 2N series lossis Surface Mount MMBT series lawv txhua tus muaj lawv cov txiaj ntsig tshwj xeeb thiab daim ntawv thov. Tawm ntawm cov no, muaj lwm hom Transistor series BD series uas yog lub zog transistor series. Cov Transistors ntawm cov koob no feem ntau yog tsim los tsim lub zog ntxiv thiab yog li ntawd lawv loj dua me dua lwm cov transistors.

BD 139 transistors yog NPN transistors thiab BD140 transistors yog PNP transistors. Zoo ib yam li lwm cov transistors lawv kuj muaj 3 tus pin thiab lawv tus pin teeb tsa tau qhia hauv daim duab saum toj no.

Qhov Zoo ntawm Cov Hluav Taws Xob Hluav Taws Xob:-

1) Nws yog qhov yooj yim heev rau ON thiab tua lub hwj chim transistor.

2) Lub zog transistor tuaj yeem nqa cov dej loj hauv ON lub xeev thiab thaiv qhov hluav taws xob siab heev hauv OFF lub xeev.

3) Lub zog transistor tuaj yeem ua haujlwm ntawm kev hloov pauv zaus hauv thaj tsam ntawm 10 txog 15 kHz.

4) ON-state qhov hluav taws xob poob thoob plaws lub zog transistor qis. Nws tuaj yeem siv los tswj lub zog xa mus rau lub nra, hauv inverters thiab chopper.

Qhov tsis zoo ntawm Cov Hluav Taws Xob Hluav Taws Xob:-

1) Lub zog hluav taws xob tsis tuaj yeem ua haujlwm txaus siab tshaj qhov hloov pauv ntawm 15 kHz.

2) Nws tuaj yeem raug puas tsuaj vim cua sov khiav lossis tawg zaum ob.

3) Nws muaj peev xwm thim rov qab yog qhov tsawg heev.

Kauj Ruam 5: Cov Lus Qhia Tshwj Xeeb ntawm BD139/140

Kev Qhia Tshwj Xeeb ntawm BD139 Transistors yog:

1) Hom Transistor: NPN

2) Max Collector Current (IC): 1.5A

3) Max Collector-Emitter Voltage (VCE): 80V

4) Max Collector-Base Voltage (VCB): 80V

5) Max Emitter-Base Voltage (VEBO): 5V

6) Max Collector Dissipation (Pc): 12.5 Watt

7) Kev Hloov Zaus Max (fT): 190 MHz

8) Yam Tsawg & Tshaj Plaws DC Tam Sim No Tau Txais (hFE): 25 - 250

9) Max Cia & Ua haujlwm kub yuav tsum yog: -55 txog +150 Centigrade

Cov Lus Qhia Tshwj Xeeb ntawm BD140 Transistor yog:

1) Hom Transistor: PNP

2) Max Collector Current (IC): -1.5A

3) Max Collector-Emitter Voltage (VCE): –80V

4) Max Collector-Base Voltage (VCB): –80V

5) Max Emitter-Base Voltage (VEBO): –5V

6) Max Collector Dissipation (Pc): 12.5 Watt

7) Kev Hloov Zaus Max (fT): 190 MHz

8) Yam Tsawg & Tshaj Plaws DC Tam Sim No Tau Txais (hFE): 25 - 250

9) Max Cia & Ua haujlwm kub yuav tsum yog: -55 txog +150 Centigrade

Yog tias koj xav tau qee qhov kev paub ntxiv txog BD139/140 transistors koj tuaj yeem xa mus rau lawv cov ntaub ntawv los ntawm no.

Kauj Ruam 6: Kev thov ntawm Transistors

Transistors tau siv rau kev ua haujlwm ntau tab sis ob txoj haujlwm uas transistors tau siv ntau zaus yog Kev Hloov thiab Kev Hloov Kho:

1) Transistor ua Amplifier:

Lub transistor ua raws li lub zog siv los ntawm kev txhawb lub zog ntawm lub teeb liab tsis muaj zog. DC qhov tsis ncaj ncees qhov hluav taws xob tau thov rau qhov sib txuas emitter-puag, ua rau nws nyob twj ywm rau pem hauv ntej tsis xwm yeem. Qhov kev tsis ncaj ncees rau pem hauv ntej no raug saib xyuas tsis hais txog qhov sib txawv ntawm lub teeb liab. Kev tiv thaiv qis hauv cov kab hluav taws xob tso cai rau ib qho kev hloov pauv me me hauv cov teeb liab nkag mus ua rau muaj kev hloov pauv hauv cov zis. Lub tshuab hluav taws xob tam sim no tshwm sim los ntawm cov teeb liab tawm tswv yim txhawb nqa cov khoom siv tam sim no, uas tom qab ntawd ntws los ntawm qhov ntsuas qhov ntsuas RL, ua rau muaj qhov hluav taws xob loj poob thoob plaws nws. Yog li qhov ntsuas hluav taws xob me me ua rau muaj qhov hluav taws xob loj tso tawm, uas qhia tau hais tias transistor ua haujlwm raws li lub tshuab hluav taws xob.

2) Transistor li Hloov:

Cov hloov hluav taws xob tuaj yeem siv los hloov thiab tswj cov teeb, txuas, lossis txawm tias lub cev muaj zog. Thaum siv lub bipolar transistor los hloov lawv yuav tsum yog "tag nrho-OFF" lossis "tag nrho-ON". Cov transistors uas tau ua tiav "OFF" tau hais tias nyob hauv lawv thaj chaw txiav tawm. Thaum siv lub transistor ua qhov hloov pauv, Lub hauv paus me me tam sim no tswj tau qhov loj dua Collector thauj khoom tam sim no. Thaum siv cov transistors los hloov cov khoom siv hluav taws xob xws li kev xa tawm thiab solenoids, "Flywheel Diode" tau siv. Thaum cov dej loj lossis qhov hluav taws xob xav tau los tswj, Darlington Transistors tuaj yeem siv tau.

Kauj Ruam 7: BD139 thiab BD140 H-Choj Circuit

Yog li, tam sim no tom qab ntau qhov theoretical ib feem, peb yuav tham txog daim ntawv thov BD139 thiab BD140 Transistor pob. Daim ntawv thov no yog H-Choj Circuit uas yog siv hauv kev tsav lub cev muaj zog. Thaum peb xav kom khiav DC lub cav, nws xav tau tias lub zog loj tau xa mus rau lub tshuab hluav taws xob uas tsis tuaj yeem ua tiav los ntawm microcontroller ib leeg yog li peb yuav tsum txuas lub transistor Circuit Court ntawm tus tswj thiab lub cev uas ua haujlwm raws li lub tshuab hluav taws xob thiab pab khiav lub cav kom zoo. Daim duab kab hluav taws xob rau daim ntawv thov no muaj nyob hauv daim duab saum toj no. Nrog rau H-choj Circuit no, lub zog txaus tau xa los ua ob lub DC motors ua haujlwm tau zoo thiab nrog qhov no, peb tseem tuaj yeem tswj cov kev taw qhia ntawm kev sib hloov ntawm cov motors. Ib yam uas peb yuav tsum nco ntsoov thaum siv BD139/140 lossis lwm lub zog hloov hluav taws xob yog tias lub zog hluav taws xob tsim hluav taws xob tsim hluav taws xob ntau uas tseem tsim tawm hauv cov cua sov kom tiv thaiv teeb meem kub hnyiab peb yuav tsum ntxiv lub rhaub dej kub. rau cov transistors uas lub qhov twb tau muab rau ntawm transistor.

Txawm hais tias qhov kev xaiv zoo tshaj plaws rau lub zog hloov hluav taws xob yog BD139 thiab BD140 yog tias lawv tsis muaj ces koj kuj tseem yuav mus rau BD135 thiab BD136 uas yog NPN thiab PNP transistors feem tab sis qhov yuav tsum tau muab rau BD139/140 khub. Yog li ntawd nws yog rau kev qhia vam tias nws tau pab koj.