1、采用两片IR2103驱动一个H桥，开关管采用SGL160N60UFDTU，负载为一个线圈，电感约为40mH，电阻2.4Ω，线圈正向通电时间为44ms，反向通电时间为14ms，门极开通电阻为22Ω，关断电阻为0Ω，门极对发射极有16V稳压管，如图所示，线圈正反向通电时间间隔20秒以上

2、操作几次后发现下管无法驱动，经测量IR2103低侧驱动输出LO对GND之间电阻为3kΩ左右，正常约为430kΩ

3、2103低侧损坏的可能原因有哪些以及如何防护？

Lithium battery protection board project, high-side NMOS tube controls charging/discharging circuit. Now, a gate driver chip, IRS25752LTRPBF, has been selected. After returning the sample for debugging, it was discovered that after the MCU gave a high level signal, this chip did not work, and there was no output. The driving circuit is as follows:

Can you help analyze what is wrong with this circuit?

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/IGBT/%E6%A0%85%E6%9E%81%E9%A9%B1%E5%8A%A8%E8%8A%AF%E7%89%87IRS25752LTRPBF%E6%97%A0%E6%B3%95%E9%A9%B1%E5%8A%A8%E9%AB%98%E8%BE%B9NMOS%E7%AE%A1/td-p/655860

Please explain in detail the basic test circuit and test process of the IGBT module for parameters such as reverse recovery peak current, recovery charge, and reverse recovery loss (per pulse). Thank you!

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/IGBT/IGBT%E6%A8%A1%E5%9D%97%E5%AF%84%E7%94%9F%E4%BA%8C%E6%9E%81%E7%AE%A1%E5%8F%8D%E5%90%91%E6%81%A2%E5%A4%8D%E7%89%B9%E6%80%A7/td-p/655802

PressFtiに関して1点確認させてください。

下記ANに記載している補助治具に関してですが、こちらはInfineon様が設計しているとANに記載がございますが、Infineon様からご提供は可能という事でしょうか？

AN P6抜粋

実際にPressIn、PressOutする治具はお客様の方で用意して頂くという認識です。

以上、宜しくお願い致します。

Internal block diagram according to the IR2103 manual

Undervoltage lockout only involves VCC. If the high side uses bootstrap power supply, does it also have undervoltage lockout?

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/IGBT/IR2103%E9%AB%98%E4%BE%A7%E9%A9%B1%E5%8A%A8%E6%98%AF%E5%90%A6%E5%85%B7%E5%A4%87%E6%AC%A0%E5%8E%8B%E9%97%AD%E9%94%81/td-p/655179

麻烦工程师介绍一下两者的不同，并推荐英飞凌相关产品和学习资料，非常感谢！

原帖链接如下：

https://www.zhihu.com/question/604700277

Hi, 

hi?
I am trying to operate an Axial flux machine using Hybridkit Drive sense.
While running the position sensor wizard for the first task, I discovered that the logic board had the following problem where it reads the signal from the resolver on pole pair 8:
When the actual motor rotates once, 8 mechanical rotations are reported to the logic board as shown below.
It doesn't seem to be resolved by modifying the resolver parameters, so I would like to inquire if there is a solution to this.

The pole pair for both the motor and resolver is 8.