Transistors - Bipolar (BJT) - Single | 23708 items

Ask: How does a bipolar transistor work?

Answer: A bipolar transistor is a semiconductor device commonly used for amplification. The device can amplify analog or digital signals. It can also switch DC or function as an oscillator. Physically, a bipolar transistor amplifies current, but it can be connected in circuits designed to amplify voltage or power.

Ask: What are the three elements of bipolar transistor?

Answer: Bipolar Transistors Contain Two Types of Semiconductor Material. ... A base current turns the transistor on like a closed switch and allows a proportional amount of current through the collector. Collector current is primarily limited by the base current, regardless of the amount of voltage available to push it.

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Ask: What is unipolar transistor and bipolar?

Answer: A BJT consists of three differently doped semiconductor regions: the emitter region, the base region and the collector region. These regions are, respectively, p type, n type and p type in a PNP transistor, and n type, p type and n type in an NPN transistor.

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Ask: How transistors work in a circuit?

Answer: BJT is called bipolar because the current in a BJT flows due to both electron and hole carriers, whereas the current in a Field Effect Transistor (FET) flows due to either electron carriers for N-type FET or hole carriers for P-type FET, hence they're called unipolar transistors.

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