A transistor is a key component in electronics, often used as a switch or to amplify a signal from a sensor. NPN (negative-positive-negative) transistors are the most used transistor. An illustration ...

Thyristors are a semiconductor device with an S-shaped current-voltage characteristic. They are a kind of managed keys with a state memory that are turned on when a control signal is applied to the ...

“Two halves make a whole” is a very old and often true maxim. For example, it’s almost always true when said about AC phase angle power control. You rarely want significant alternating half-cycle ...

Physicists in Japan have made a thyristor -- a device that can convert a direct current into an alternating current -- from a single crystal of organic material. In addition to practical applications, ...