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Group standard drafting meeting of AMB aluminum nitride ceramic copper clad substrate for insulated gate bipolar transistor (IGBT) module

On June 15, 2018, the seminar on the technical standards of AlN ceramic substrate for IGBT module packaging was successfully held in Wuxi Buckingham grand hotel. The conference was sponsored by China IGBT technology innovation and Industry Alliance and Wuxi Tianyang Electronics Co., Ltd., and was from national power electronic standards committee, Standardization Research Institute of Ministry of industry and information technology, CRRC times Electric Co., Ltd., CRRC Yongji Electric Semiconductor branch, power semiconductor Institute of global energy interconnection Research Institute, Jiangsu Hongwei Technology Co., Ltd., Shanghai Shenhe thermomagnetoelectric More than 20 people from subsidiaries, Zhejiang Dehui Electronic Ceramics Co., Ltd., Xi'an Weiguang Technology Co., Ltd., Jiangsu Zhongke JunXin Technology Co., Ltd. and other units attended the meeting.

The 4th International Academic Forum of China IGBT technology innovation and Industry Alliance

On November 6, 2018, the company participated in the "Fourth International Academic Forum of China IGBT technology innovation and Industry Alliance" in Zhuzhou and set up an exhibition stand. Aluminum nitride ceramic copper-clad substrate and silicon nitride ceramic copper-clad substrate, as well as crimped round and square IGBT ceramic tube shells were exhibited. The figure below shows the standing governor of Hunan Province visiting the exhibition stand of the company.

What are the main advantages of SCR dimming?

Thyristor dimming has certain defects, but also has many advantages. It refers to the combination with incandescent halogen lamp, occupying a very large dimming market. If led wants to replace the position of SCR dimming incandescent lamp and halogen lamp lamp, that is, to be compatible with SCR dimming, what are the main advantages of SCR dimming? In the position of partially installed thyristor dimming incandescent lamp or halogen lamp, the dimming switch and knob of thyristor have been installed on the wall, and two connecting wires leading to the lamp have been installed in the wall. It is not easy to replace the silicon controlled rectifier switch on the wall and increase the number of connecting wires. The best way is to screw the incandescent lamp on the lamp head Down, replace with a compatible thyristor dimming function of the LED bulb on the line, and LED fluorescent lamp, the best is to do with the current T10 and T8 fluorescent lamp size is the same, professional electrician is not equipped, ordinary people can directly replace, can quickly popularize, so many foreign manufacturers of LED Driver IC have made compatible with the existing thyristor Dimming the IC. The difference between thyristor dimming and common flyback IC is that it can detect the conduction angle of thyristor to determine the current of led to dimming. This is the main advantage of thyristor dimming in this paper.

What are the types of thyristors

1、 According to the turn off, conduction and control mode, thyristors can be divided into ordinary thyristor, bidirectional thyristor, reverse conducting thyristor, gate turn-off thyristor (GTO), BTG thyristor, temperature controlled thyristor and light controlled thyristor. 2、 According to the pin and polarity, the thyristor can be divided into two pole thyristor, three pole thyristor and four pole thyristor. 3、 According to the packaging forms, thyristors can be divided into metal encapsulated thyristors, plastic encapsulated thyristors and ceramic encapsulated thyristors. Among them, metal encapsulated thyristor can be divided into bolt type, flat type and round shell type; plastic encapsulated thyristor can be divided into two types, with and without heat sink. 4、 According to the current capacity, thyristors can be divided into three types: high power thyristor, medium power thyristor and small power thyristor. Generally, high-power thyristors are usually packaged in metal shells, while medium and low-power thyristors are mostly packaged in plastic or ceramic packages. 5、 According to the turn off speed, thyristor can be divided into ordinary thyristor and high frequency (fast) thyristor.
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