Fast recovery diodes, namely power semiconductor devices, are the bridge between weak current control and strong current operation, between information technology and advanced manufacturing, and are an important foundation of the national economy. With the increasingly urgent demand for energy saving and emission reduction in countries all over the world, power semiconductor devices have moved from traditional industrial control and 4C (communication, computer, consumer electronics and automobile) to new energy, rail transit, smart grid, frequency conversion Home appliances and many other industries.
VIEW MORE+
First of all, it can be distinguished from the appearance: the fast recovery diode has only two legs, and the triode has three legs.
VIEW MORE+
Due to the unbalanced output voltage of the frequency converter (VFD), the motor shakes and the speed is unstable. In general, it is difficult to determine which drive is at fault without experience. At this time, the 2hz of the VFD can be started, and the voltage values of p-u, p-v, p-w and u-n, v-n and w-n can be measured respectively with the DC voltage range of the multimeter. These six voltages will be different at this time, and the higher voltage will be different. The following is a simple measurement method for IGBT modules.
VIEW MORE+
Variable Frequency Power Supply, IGBT application
VIEW MORE+
The IGBT power module is a power module composed of insulated gate bipolar transistors (IGBT). Since the IGBT module is a MOSFET structure, the gate of the IGBT is electrically isolated from the emitter through an oxide film, which has excellent device performance. Widely used in servo motors, frequency converters, frequency conversion appliances and other fields.
VIEW MORE+
The freewheeling diode (FWD) of the IGBT is a very interesting thing, which has a great impact on the overall performance of the module
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
