Transistor Integrator: 3 Kauj Ruam

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

Cov Lus Qhia no qhia koj yuav tsim thiab ua transistor analog analog integrator.

Qhov kev sib koom ua ke tso cai ua qhov sib ntxiv ntawm cov cim me me.

Lub tshuab hluav taws xob no tsis siv lawm thiab tuaj yeem ua nrog cov khoom siv ua haujlwm.

Txawm li cas los xij, koj tseem tuaj yeem sib sau ua ke yog tias koj muaj cov khoom siv dav dav dav hom phiaj.

Rf resistor yuav tsum tau hloov kho vim tias txhua tus transistor muaj qhov sib txawv tam sim no nce.

Khoom siv

Qhov chaw: lub rooj sib txig sib luag, xov hlau, lub hom phiaj dav dav NPN transistors - 10, lub hom phiaj dav dav PNP transistor - 3, 1 hli xaim, 470 nF lub tog hauv ncoo capacitors - 5, lwm yam khoom uas tau qhia hauv Circuit Court.

Toos: pliers, hlau stripper.

Yeem qhov: solder.

Yeem cov cuab yeej: cov hlau txuas.

Kauj ruam 1: Tsim Circuit Court

Thawj theem yog theem AC (Hloov Hloov Tam Sim No) lub tshuab ua kom nrov nrov.

Theem thib ob yog tam sim no daim iav qhov sib txuas ua ke. Kuv siv daim iav tam sim no hloov ntawm ib tus transistor vim tias kuv xav kom muaj qhov kwv yees them nqi tam sim no. Transistor qhov nce tam sim no tuaj yeem hloov pauv nrog qhov kub thiab txias tam sim no.

Qhov hluav taws xob hla lub capacitor C2 piv rau qhov tseem ceeb ntawm qhov tam sim no. Nyob rau hauv daim iav qhov hluav taws xob tam sim no cov khoom siv tam sim no nyob rau tib yam tsis hais txog kev thauj khoom/lub zog hluav taws xob tshwj tsis yog lub tshuab hluav taws xob tau them tag nrho lossis cov transistor tau ua tiav. Yog li ntawd:

Vc2 = (1/C2)*(Ic2*t/2)

C2 = C2a + C2b

Qhov twg: t = sijhawm (vib nas this), Ic2 = C2 capacitor tam sim no (Amps)

C2 lub tshuab hluav taws xob yuav tsis tso tawm tag nrho yog tias lub teeb liab nkag mus rau hauv Circuit yog xoom vim tias Q3 transistor yuav tig tawm thaum Vbe3 qhov hluav taws xob poob qis dua li 0.7 V.

Vim tias kuv tab tom siv qhov chaw tsom iav tam sim no thiab ob lub transistors raug kaw hauv ib nrab ntawm lub voj voog, yog Vc1 yog qhov sinusoid dua li nruab nrab Ic2 = rms ((Vc1peak - 0.7 V) / (Rc2a + 1 / (j*2*pi) Cb2*f))))

Qhov twg: f = zaus (Hz), Vc1peak = Vc1 AC Amplitude

RMS sawv rau lub hauv paus txhais tau tias yog ob peb.

Nyem rau qhov txuas no:

Qhov kawg thiab theem thib peb yog lwm lub tshuab hluav taws xob AC.

Lub Circuit Court ua haujlwm yam tsawg kawg ntawm 3 V. Txawm li cas los xij, koj yuav tuaj yeem txo qhov khoom siv hluav taws xob kom tsuas yog 1.5 V yog tias koj txo txhua tus nqi tiv thaiv. Txawm li cas los xij, qhov teeb meem tsis tshua muaj hluav taws xob yog tias lub teeb liab nkag mus yuav tsum sib tw nrog lub suab nrov.

Kauj ruam 2: Ua Circuit Court

Kuv tau hloov kho qhov Circuit Court thiab kuj yog kab lus no. Kuv hloov cov qub electrolytic capacitors nrog lub tog hauv ncoo. Kuv kuj tau ntxiv ob peb lub transistors ua ke.

Koj tuaj yeem pom tias kuv tsis tau siv cov hlau txuas. Txawm li cas los xij, koj yuav xav tau nws.

Kauj Ruam 3: Xeem

Thawj daim duab: Sine wave

Daim duab thib ob: Square yoj

Daim duab thib peb: Daim duab peb sab yoj

Cov hluav taws xob tso tawm hluav taws xob nce ntxiv maj mam thaum cov zaus nkag tau nce mus txog 50 Hz. Tom qab ntawd kuv txo qis thiab qhov hluav taws xob nkag tau poob zoo li koj pom hauv kuv qhov kev ntsuas ntsuas. Qhov no yog vim lub siab dhau lim cov khoom ntawm Q1 transistor AC amplifier.

Txawm li cas los xij, nws tsis pom tseeb hauv kuv qhov kev ntsuas pom tias los ntawm kev nce zaus qhov hluav taws xob tso tawm yuav poob vim qhov qis dhau ntawm cov yam ntxwv lim dej ntawm C2 capacitors (C2a thiab C2b). Kuv yooj yim txiav txim siab tsis thab nrog kaw cov duab. Qhov no yog vim lub capacitors tsis muaj sijhawm them.