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What are the main parameters of SCR?

SCR (Silicon Controlled Rectifier) referred to as SCR, is a high-power electrical components, also known as thyristor. It has the advantages of small size, high efficiency and long life. In the automatic control system, it can be used as a high-power drive device to complete the control of high-power equipment with low-power controls. It is widely used in AC and DC motor speed control system, power regulation system and servo system. What are the main parameters of the silicon controlled rectifier? Commonly used are phase shift bridge trigger circuit, single junction transistor trigger circuit, crystal triode trigger circuit, the application of small thyristor trigger circuit, and so on.

2022

03-02

Why do solid state relays heat up?

During normal operation of solid-state relays, there is a certain power loss on the internal chip. This power loss is mainly determined by the product of the output voltage drop and the load current, which is consumed by heating. This increases the power consumption of solid-state relays and also forms the loss of internal equipment, which reduces their own service life. Therefore, it is often customary to install heat dissipation installation when solid-state relays are operated.

2022

02-25

Detailed Explanation of Characteristics and Selection of Semiconductor Discharge Tube

2022

01-07

In-depth analysis of the working principle of solid relay

Solid state relay (SolidStateRelays, referred to as SSR) is a non-touch electronic switch, which is composed of discrete components, fixed resistance network and chip. The electrical isolation and signal coupling of the control circuit (input circuit) and the load circuit (output circuit) are completed through mixed process assembly, and the on-off switching function of the load is completed through solid-state equipment, without any moving parts inside.

2021

12-28

Analysis of the structure characteristics and working principle of SCR

SCR is a P1N1P2N2 four-layer three-terminal structure element with three PN junctions. When analyzing the principle, it can be regarded as consisting of a PNP tube and an NPN tube. Its equivalent diagram is shown on the right. TRIAC: A TRIAC is a silicon controlled rectifier device, also known as a bidirectional thyristor.

2021

12-14

Talk about the application scope and selection method of semiconductor discharge tube

Semiconductor discharge tube is a kind of overvoltage protection device, which is made of thyristor principle. It relies on the breakdown current of PN junction to trigger the conduction of discharge, and can flow a large surge current or pulse current. The range of its breakdown voltage constitutes the range of overvoltage protection.

2021

12-07

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