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The voltage instability generated by the rectifier bridge may be caused by the following reasons
The voltage waveform generated by the rectifier bridge may have certain ripples and AC components in practical situations. If a stable DC voltage is needed, the following methods can be adopted for stabilization processing
Composition of transistor circuit
A transistor is made by fabricating two PN junctions that are very close to each other on a semiconductor substrate. The two PN junctions divide the entire semiconductor into three parts, with the middle part being the base region and the two sides being the emitter and collector regions. There are two arrangements: PNP and NPN.
The transistor has a current amplification function, which essentially means that the transistor can control the large change in collector current with a small change in base current. This is the most fundamental and important characteristic of a transistor.