Definition - What does Thyristor mean?

A thyristor is a solid state and four-layered semiconductor used in electronic devices and equipment to control electrical power or current output through a phase angle control technique.

A thyristor is also known as a semiconductor-controlled rectifier (SCR) or silicon controlled rectifier (SCR).

Techopedia explains Thyristor

Thyristors are primarily designed to amplify and rectify the electrical currents that flow in high-powered electronic devices. A thyristor's four layers consist of a series of N and P-type material that connect with the anode, cathode and a logic gate. When a current is applied at the gate, the thyristor allows an amplified current to flow form anode to cathode.

Although thrysitors can only transmit currents in one direction, they have three different operating modes: reverse blocking, forward blocking and forward conducting.

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
Techopedia on Twitter

Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join 138,000+ IT pros on our weekly newsletter

3 Amazing Management Tools -- All Free
3 Amazing Management Tools -- All Free:
Attention network admins, get the top tools from Solarwinds. No expiration, 100% free.
Free 30 Day Trial – VMTurbo Operations Manager
Free 30 Day Trial – VMTurbo Operations Manager:
Handles the scale and complexity of today’s virtual and cloud environments for you, keeping your application owners happy while maximizing...