IGBT module is a modular semiconductor product that is packaged by IGBT (insulated gate bipolar transistor chip) and FWD (freewheeling diode chip) through a specific circuit bridge. The packaged IGBT modules are directly used in inverters, UPS uninterruptible power supplies and other equipment, and have the characteristics of energy saving, convenient installation and maintenance, and stable heat dissipation. Currently, most of these modular products are sold on the market. With the advancement of the concept, such products will become more and more common in the market. IGBT is the core device for energy conversion and transmission, commonly known as the "CPU" of power electronic devices. As a national strategic emerging industry, it is widely used in rail transit, smart grid, aerospace, electric vehicles and new energy equipment.
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Recently, the Qingdao Development and Reform Commission announced the list of the second batch of Qingdao innovative application laboratories and scenario application laboratories. With its advanced product technology and outstanding achievements, Jiaen Semiconductor has stood out among many excellent companies and was successfully selected into the "Qingdao New Energy Vehicle Chip Technology Innovation Application Laboratory".
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Generally, semiconductor devices with rated current exceeding 1 ampere are called power semiconductors. They block voltages ranging from a few volts all the way up to tens of thousands of volts. Among the many power semiconductor devices, the power diode is a relatively simple device, but it is also a common basic device that is most widely used in power circuits. It is not only used in simple rectifier circuits, but also often used as freewheeling diodes (FWD for short). In simple single-phase half-bridge inverter circuits, it is matched with controllable switching devices and used in anti-parallel to continue to maintain inductance. current on the load, preventing voltage spikes due to sudden drops in current. The use of this kind of FWD exists in many applications such as switching power supplies, variable frequency power supplies, uninterruptible power supplies, and variable frequency motor drives.
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IGBT single tube: a variety of advanced IGBT technology platforms: plane non-punch-through, trench non-punch-through, plane field cut-off, trench field cut-off; providing users with flexible options in terms of economy and performance.
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The role of the power MOS in the electric vehicle controller is very important. Simply speaking, the output current of the MOS is used to drive the motor. The larger the current output (in order to prevent overcurrent from burning out the MOS, the controller has a current-limiting protection), the stronger the motor torque and the stronger the acceleration (the torque before the motor's magnetic saturation is proportional to the phase current).
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Functional ceramics in IGBT is equivalent to the application on electronic circuit substrates. As the material of functional ceramic substrates, it has excellent insulation. Next, I will introduce the application of functional ceramics in the field of IGBTs.
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