1. Diodes can be used as one-way switches.

2, the triode can amplify the overcurrent.

3. Logic operation can also be performed through triode splicing.

4, the chip used is a digital or analog circuit composed of transistors.

The inner workings of a transistor are very simple. The current flowing between the base PS2707-1 and the emitter is continuously monitored, and the current source between the collector and emitter is controlled so that the current between the base and emitter is tens to hundreds of times (depending on the type of transistor). In other words, a transistor is a device that uses the base current to control the collector-emitter current.

From the outside, because the current in the base input is amplified, it appears in the collector and emitter, so it can be considered to be amplified input signal.

While there are literally thousands of types of transistors, they differ only in their maximum specifications, electrical characteristics, and shapes.

A transistor is a device that detects the current flowing between the base and the emitter, and then controls the current between the collector and the emitter, so it works as long as there is current flowing between the base and the emitter. In other words, it is enough to design an external circuit so that the current flows between the base and the emitter.