Comments on: Tranzistori – PNP i NPN spoj, unipolarni i bipolarni tranzistori https://www.automatika.rs/baza-znanja/tutorijali/tranzistori-pnp-i-npn-spoj-unipolarni-i-bipolarni-tranzistori.html Portal za inženjere Wed, 27 Jan 2021 21:45:03 +0000 hourly 1 https://wordpress.org/?v=6.9 By: todoorovic tomislav https://www.automatika.rs/baza-znanja/tutorijali/tranzistori-pnp-i-npn-spoj-unipolarni-i-bipolarni-tranzistori.html#comment-46813 Wed, 27 Jan 2021 21:45:03 +0000 https://www.automatika.rs/?p=6746#comment-46813 Koristim priliku da obnovim neke osnovne
funkcije transistora I ako je novom tehnologijom mnogo napredovalo
Ali bza ostaje uvek aktuelna
Mnogo se napredovalo u mikro elektronici
.U sustini potrebe je veliko znam je i Idkustvo

]]> By: Dragiša https://www.automatika.rs/baza-znanja/tutorijali/tranzistori-pnp-i-npn-spoj-unipolarni-i-bipolarni-tranzistori.html#comment-30272 Mon, 16 Dec 2019 21:51:23 +0000 https://www.automatika.rs/?p=6746#comment-30272 svaka Čast Radijo sam. 30 god, pa bio prestao opet se vraćam,nemogu Bez Elekeronike,da vidim nešto novo ?

]]> By: Jovan https://www.automatika.rs/baza-znanja/tutorijali/tranzistori-pnp-i-npn-spoj-unipolarni-i-bipolarni-tranzistori.html#comment-7413 Tue, 05 Dec 2017 13:12:11 +0000 https://www.automatika.rs/?p=6746#comment-7413 Mala ispravka kod istorije BJT-a.
The transistor was invented around 1923, by physicist Dr. J. Edgar Lilienfeld, the father of the modern electrolytic capacitor. WHAT?!!! But everyone knows that it was invented at Bell Labs in 1947. Nope. The original transistor was a 1920s thin-film device deposited on glass. The base region was a clever idea: crack a piece of glass, put it back together with metal foil clamped in the crack, then slice off the extra foil to make a flat surface that goes: glass, metal, glass. Deposit a thin layer of semiconductor and heat the device, and the thin metal line will “dope” that part of the semiconductor layer. Simple! Dr. Lilienfeld also built MOSFETs using the natural oxide layer found on aluminum plates. He also built a working transistor radio and showed it around to various companies. It was ignored, possibly because he didn’t have a solid theory to explain how his invention worked, but more probably because it was “impossible;” weird and new. Some hobbyist should try making a home-built transistor. [New 2006 info: R. G. Arns says that Bret Crawford built sucessful Lilienfeld transistors in 1991 as his MS Physics Thesis. Joel Ross did it again in 1995 with more stable versions. And more amazing: William Shockley and G. L. Pearson did so in 1948, publishing in Physical Review for July 15 1948, but they concealed the fact that it was Lilienfeld’s device they were demonstrating!]

Lilienfeld’s patent numbers are:

# 1,745,175 Method and Apparatus for Controlling Electric Currents
# 1,877,140 Amplifier for Electric Current
# 1,900,018 Device for Controlling Electric Current

These patents caused Bardeen, Brattain, and Shockley some grief, and caused the US Patent Office to disallow the Bell Labs FET patents in later years.

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