Tester tranzystorów

Schemat układu oraz płytki:

Nazwa: Tester tranzystorów
Wersja projektu: v1.0
Rozmiar: 0.153 MB
Dodano dnia: 21.02.2013r.
Liczba pobrań: 281
Tester tranzystorów jest małym układem służącym do testowania tranzystorów bipolarnych.

Zasada działania:
Generator astabilny (klasyczna aplikacja NE555) generuje ciąg impulsów zasilających badane tranzystory. Takie rozwiązanie umożliwia badanie tranzystorów odmiennej polaryzacji bez stosowania mechanicznego przełącznika zmieniającego polaryzacji dla NPN-PNP. Poziom niski na wyjściu generatora umożliwia badanie tranzystora typu PNP, wysoki NPN. Po dołączeniu do zacisków pomiarowych tranzystora dowolnego rodzaju układ automatycznie wyświetli typ tranzystora i określi czy jest sprawny.

Wskazania testera:
-świeci jedna z diod: NPN lub PNP − tranzystor sprawny,
-świecą obie diody na przemian − tranzystor niesprawny (przebicie emiter−kolektor),
-nie świeci żadna dioda − tranzystor niesprawny (przerwa w tranzystorze).

Układ został opracowany na podstawie kitu AVT-1347 z małymi modyfikacjami.
W pliku do pobrania znajduje się schemat elektryczny oraz płytki PCB wykonany w programie Eagle oraz dokument pdf z dokładniejszym opisem zasady działania układu.

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Tester Rating: 3.1/6 (51 votes cast)

Wyświetleń: 9458
Ostatnia edycja: 18.03.2017