Diskretni operacioni pojačavači - topologije i meditacije.

[Mikorist]

Kao što sama tema kaže. Želim sam da ih pravim svojeručno. Prvo treba da krenem da proučavam gotove topologije i mustre...

Za početak recimo

https://www.passdiy.com/pdf/diyopamp.pdf

 

Discrete Operational Amplifier

SOUND-AU.COM

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ESP Project Pages - Discrete Opamp. experimental circuit is stable and has surprisingly good performance.

Op-amp made from Discrete Components - Frank Milburn's Blog - Personal Blogs - element14 Community

COMMUNITY.ELEMENT14.COM

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Background A few weeks ago I came across a series of YouTube videos by the IMSAI Guy on an op-amp made from discrete components.  Over a series of posts he describes the circuits that make up a basic op-amp and demonstrates them on a bread ...

http://www.nanovolt.ch/resources/discrete_opamps/pdf/918_documentation.pdf

4QD-TEC: discrete op-amps

WWW.4QDTEC.COM

 

Homemade Operational Amplifier

HACKADAY.IO

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Operational amplifiers (op-amps) are commercially available as monolithic ICs and are widely used as the basis of analog circuit elements. In 2010, I built my own simple op-amp with discrete transistors to properly understand the principle of the op-amp and experience the operation of the transistors, which allowed me to study the behavior of differential pair transistors and complementary emitter followers. Then I...

 

http://www.johnhardyco.com/pdf/990.pdf

https://www.technicalaudio.com/pdf/Jensen_Transformers/Jensen_OpAmps_990_and_related/Jensen_JE-990_opamp_JAES_reprint_1980.pdf

https://inst.eecs.berkeley.edu/~ee140/sp14/labs/Lab2.ee140.s14.v1.pdf

 

Nastavak sledi....

 

[Mikorist]

Zna li neko koji je dobar USB mikroskop ?

Recimo

Mikroskop digitalni 40x-1000x, USB :: MikroPrinc

WWW.MIKROPRINC.COM

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Može se koristiti pri naučnim istraživanjima, kod naučnih istraživanja u biologiji, pri inspekciji PCB-a; Tehničke karakteristike:; Senzor: 0.3M CMOS

 

[NIXIE]

Ti USB mikrofoni su verovatno jeftiniji na Aliju nego kod nas.

[Mikorist]

Za početak nije bitno koliko je veliki. Ovo mogu na protoboard da krenem da ubadam

Ovakav već imam

Protobord 215x130mm ZY-204 sa 1660 rupa :: MikroPrinc

WWW.MIKROPRINC.COM

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Protobord sa 1660 rupa; Materijal izrade: ABS plastika + crna aluminijumska ploča (nalazi se na dnu); Poseduje 3 banana utičnice; Prihvata različite

Ova šema mi je zapala za oko

[Zen Mod]

ako ces, onda radi sa JFet ulaz

resava se gomila stvari sama po sebi

[Mikorist]

Evo primer

https://www.forsselltech.com/media/attachments/JFET_Opamp.PDF

[Zen Mod]

ulazni LTP uradi sa 2SK3320 ili slicnim - iz aktuelne proizvodnje

ovo dalje uradi sa BC846/856, ukljucujuci i CCS za LTP i gde jos treba

CCS sa JFet je inferioran u odnosu na classic ring of two

ne uvodi P JFet u pricu, jer ces se zaklati sa nabavljivoscu

 

zgodan element za ukljuciti je i mali mosfetak BSS123

[Mikorist]

Evo ga Jensenov SIM za JE 990 . Pa ko hoće da meditira

 

JE_990_FET_SIM.zip

[Zen Mod]

pa uzo si se...... sad nastavi ....... 

 

[Mikorist]

Evo na gotovo - ne moram ni obrve da dignem. Čak i pločice

Discrete OpAmp - Replaces Dual Channel DIP8 - design and PCB - diyAudio

WWW.DIYAUDIO.COM

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Well here I am travelling again, and this time stuck for an extra week away from home. The design bug has bit, and this time I tried keeping things

[shonne]

Miko, nemoj da brines, ima nekoliko source-a za original jfets, samo napred 😁🤗💪

[Mikorist]

Oće da pogađamo kako se zove ova osoba

diyAudio - googlyone

WWW.DIYAUDIO.COM

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A community dedicated to helping everyone learn the art of audio. Projects by fanatics, for fanatics!

S zvaršava se na s

[Mikorist]

pre 2 minuta, shonne reče

Miko, nemoj da brines, ima nekoliko source-a za original jfets, samo napred 😁🤗💪

A čeka se 100 godina

[shonne]

Just now, Miko said:

A čeka se 100 godina

Sta je 20-ak dana, dok stigne posta. Taman da malo usitnis kriptovalute 😁

[Mikorist]

Pa u pravu si. Opušteno. Nema žurbe i sikiracije to utiče na sex

[Zen Mod]

nes se ti od tog bip input  leba najesti

[Mikorist]

Misliš šećera 

 

[Mikorist]

Btw. nađoh i sa 2SK3320 ili  2SK2145 šemu

 

Jest na japanskom ali nema veze

[Gosha]

Mislim da ti ne treba nista bolje od ovoga.

Stavis malo modernije komponente, recimo za ulazni J-Fet par dobro upareni BF862.

To je deda Analog Devices pravio jos sedamdesetih prosloga veka

[Mikorist]

[Gosha]

Evo i datasheet:

 

HOS_050.pdf

[Beli_Ninja]

/_images/logotype_cube.png

Jung W.Opamp applications handbook.2005 - Стр 82

STUDFILE.NET

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Работа по теме: Jung W.Opamp applications handbook.2005. Предмет: Электротехника. ВУЗ: СПбГЭТУ. Страница 82.