The braking unit on the inverter refers to the occasions where the mechanical load is relatively heavy and the braking speed is required to be very fast, the regenerative electric energy generated by the motor is consumed by the braking resistor, or the regenerative electric energy is fed back to the power supply. system.
VIEW MORE+
In the application site, the interference of the inverter occurs more and more seriously, and even the control system cannot be put into use. The working principle of the frequency converter is destined to generate strong electromagnetic interference.
VIEW MORE+
MOS tubes and IGBT tubes are new electronic devices with high frequency of use in modern electronic equipment, so they are often encountered in electronic circuits and are accustomed to. However, due to the similarity in appearance and static parameters of MOS tube and IGBT tube, sometimes it is easy to travel in the selection, judgment, and use. The reliable identification method of MOS tube and IGBT tube is to clear the obstacles for selection, judgment and use.
VIEW MORE+
Due to the inconsistency of the parameters of the parallel IGBTs and the asymmetry of the circuit layout, it will inevitably lead to uneven current distribution of the device, and in severe cases, the device will fail or even damage the main circuit. Therefore, the focus of IGBT parallel connection is to consider how to ensure current sharing through design. At present, some existing IGBT parallel current sharing measures include: derating method, gate resistance matching method, emitter resistance feedback method, and external inductance balancing method.
VIEW MORE+
IGBT is the CPU of power electronic device and plays a pivotal role in power electronic conversion and control. In the inverter, the IGBT module is more important. However, IGBT modules often explode.
VIEW MORE+
The reliability of a power device refers to the ability of the device to complete the specified function under specified conditions, usually expressed in terms of service life. Since semiconductor devices are mainly used to realize the switching of current, which will generate large power loss, the thermal management of power electronic systems has become the top priority in the design. In the working process of power electronic devices, the first thing to deal with is thermal problems, which include steady-state temperature, temperature cycling, temperature gradient, and matching of packaging materials at operating temperature.
VIEW MORE+QINGDAO JIAEN SEMICONDUCTOR CO., LTD
Address: Unit 103-104, Building 41, No. 780 Baoyuan Rd, High-tech Zone, Qingdao, China.
Tel:+86 13792436358
Fax:+86-532-67769506
E-mail: vickywang@jiaensemi.com
FOLLOW US
Copyright© Qingdao Jiaen Semiconductor Co., Ltd.（Head Office）,All Rights Reserved. Powered by:Hicheng SITEMAP
