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Bipolar Transistor (BJT)
Transistor, semiconductor transistor, also known as bipolar transistor, is a semiconductor device that can control current. According to its structure, it is divided into, NPN transistor, PNP transistor. It has the function of voltage or current amplification, which can be used in amplification circuits, oscillation circuits, modulation and demodulation circuits, switching circuits and so on.

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Hall Effect Sensor

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