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A transistor is a semiconductor device that can amplify signals and switch power. The types that are used most are BJT (Bipolar Junction Transistor), UJT (Unijunction Transistor), and MOSFET (FET, for Field Effect Transistor).

2 votes
2 answers
375 views

PWM signal drop on low Duty Cycle

Glad to found an "electrical engineer"-version of stackoverflow, I greet you all. I am working on a MPPT projects, using 5V solar panel, and MCU ATTiny24 (for its ability working on a low voltage). …
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1 vote
3 answers
932 views

Fail on using 2 Transistor as a Switch

Now I'm trying to design a circuit which have 2 voltage level (12V and 3.3V). What I want to create is simple switch using 3.3V to turn off 12V. I know there are thousand question about transistor on …
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  • 241