From a simple electronic toothbrush to complicated robotics systems, DC motors are present everywhere. In most of our previous Arduino projects, we have used these DC motors as actuators and ...

A teacher I know is stuck, with only npn transistors in the supply cupboard and the need to create a reversible motor drive for an Arduino project. Reversing ‘bridges’ have four switches (relay ...

Motors and transistors are very common electronic components. This article aims to provide some of the basics, along with a working code example, circuits and ...

では前回の続きを行きますよ。 トランジスタとは、NPNもしくはPNPと半導体を三層構造にしたもので、真ん中のベース領域を極めて薄く作ることにより、勢い余った電子がベースを突き抜けてしまうことを利用して増幅を行う素子でした。前回の例ではNPN ...

Based on the knowledge developed in the previous tutorials, we now start the study of this important electronic component. We have thus created a PNP transistor. Figure 1: A PNP transistor. The size ...

It is made from a sandwich of three layers of semiconductor material: two layers of n-type material, which is a semiconductor doped with elements that provide extra electrons, and one layer of p-type ...

電流を増幅させるものです。少しの電流信号をトランジスタを通して大きくします。 1940年代までは電力を増幅させるために「真空管」を使っていましたが、トランジスタが登場してから現代に至るまで、テレビ、パソコン、携帯電話などさまざまな機材に ...