What is IGBT
In power electronics, the most important component is IGBT. Without IGBT, there would be no convenient life of high-speed rail.
When it comes to IGBTs, people in semiconductor manufacturing think it’s not just a discrete device (Power Disceret), and they all look down on it. However, it is the same as 28nm/16nm integrated circuit manufacturing, it is the key support project of the national “02 special project”. This thing is currently the most technologically advanced product in power electronic devices. It has completely replaced the traditional Power MOSFET, and its application is very wide. , Strategic industries ranging from home appliances to large aircraft, ships, transportation, power grids, etc., are known as the “CPU” in the power electronics industry. For a long time, this product (including chips) has been monopolized in the hands of a few IDMs ( FairChild, Infineon, TOSHIBA), ranked second among the country’s 16 major technological breakthrough projects during the “Twelfth Five-Year Plan” period (referred to as “02 Project”).
The so-called IGBT (Insulated Gate Bipolar Transistor) is a composite fully controlled-voltage-driven-power semiconductor device composed of BJT (Bipolar Junction Transistor) and MOS (Insulated Gate Field Effect Transistor). Features of shutdown. Simply put, it is a non-on-and-off switch. The IGBT has no function of amplifying the voltage. IGBT combines the advantages of BJT and MOSFET, such as low driving power and reduced saturation voltage. The IGBT module we usually use in practice is a modular semiconductor product that is packaged by IGBT and FWD (freewheeling diode chip) through a specific circuit bridge, which has the characteristics of energy saving, convenient installation and maintenance, and stable heat dissipation.
