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Dispozitive electronice

Tema 5

Tranzistorul bipolar.

Principiul de funcţionare,caracteristici

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Istorie

1948 – Tranzistorul cu contact punctiform

1950 – Tranzistorul cu monocristal de germaniu

1951 – Tranzistorul cu joncţiuni crescut

1952 – Tranzistorul cu joncţiuni aliat1952 – Tranzistorul cu monocristal de siliciu

1955 – Tranzistorul cu bază difuzată

1957 – Mascarea cu oxizi

1960 – tranzistorul planar 

1960 – Tranzistorul MOS

1960 – Tranzistorul epitaxial

1961 – Circuitul integrat

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Structură şi simboluri

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• BE – polarizata direct

• CB – polarizata invers

Principiul de funcţionare

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Principiul de funcţionare

TRANSfer resISTOR = TRANSISTOR

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Regimuri de funcţionare

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Tipuri de conexiuni

Bază comună Emitor comun Colector comun

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Caracteristicile tranzistorului

Caracteristica de intrare

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Caracteristicile tranzistorului

Caracteristica de ieşire

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Caracteristicile tranzistorului

Caracteristica de transfer 

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