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开关磁阻电机IGBT尖峰电压

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楼主
xfx1989|  楼主 | 2012-6-18 08:56 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
讨论一下 开关磁阻电机的桥式拓扑结构中,IGBT的尖峰电压用RCD吸收回路三项的话用三个吸收回路比较好,还是只用一项好呢?那几种吸收回路,C RC  那种更适合开关磁阻电机

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沙发
Siderlee| | 2012-6-24 01:06 | 只看该作者
参数不对了用多少都不行。。

参数对了也许很简单。。

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板凳
xfx1989|  楼主 | 2012-7-2 09:28 | 只看该作者
恩,现在我们搞开关磁阻电机,每次IGBT都烧,很纠结啊  好比我关断时候,尖峰立马产生,吸收回路如果吸收的慢,尖峰是不是立马就把IGBT烧掉,如果快的还好,但是为了快,又怕尖峰吸收的不彻底,现在上到200V出现堵转,很纠结啊

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地板
Sophia33| | 2012-7-20 14:13 | 只看该作者
Currently I am seeking Application Engineer, Asia Pacific for my client – A New York Stock Exchange listed company with great financial report each year and it has collaborated with customers to solve their toughest challenges and deliver material technologies with the critical performance and reliability they demand. And our client has fourteen factories in worldwide, own human-based management. This person will cover Aisa(China/Korea/ Taiwan/Singapore) and visit German Curamik!30% AP Business Travel

As hiring manager proposed, candidates who are Know-how in design of power electronic modules and the related key requirements for thermal resistance (Rth), current, voltage, transistors and diodes
and candidates who are R&D/process or quality engineer from IGBT packaging companies which are their customers or technical engineer from competitors and suppliers is qualified.

Company Information: Our client is an American specialty materials company with over one hundred year’s history. It is a global leading manufacturer of specialty materials such as polymers, fillers and high performance elastomers for a variety of industries.

Job Title:                Application Engineer, Asia Pacific
Div/Corp:                PES/Curamik
Report to:                Director Marketing PES
Location:                Shanghai/Suzhou/Shenzhen/Korean/Hongkong/Singapore/Taiwan etc.

Job Purpose:  

•        The application engineer for AP is responsible for the technical support for curamik products for the Asian customers mainly in Japan, China and Korea

Essential Functions:

•        Know-how in design of power electronic modules and the related key requirements for thermal resistance (Rth), current, voltage, transistors and diodes.
•        Technical support of customers:
        Main interface to customer for technical questions for new projects/products; responsible for the technical cooperation with the customer including the curamik internal coordination (“project lead”)
        Preparation and execution of technical trainings/workshops for the customer and the regional sales organization
        Support of the offer generation by verification of the technical specification
        Generation and distribution (in coordination with the HQ) of technical/application oriented documenation.-50%
•        Support of the quality department by customer complaints if a technical change can contribute to the solution.-10%
•        Generate and extend the competence for defined target applications (e.g. industry, automotive, renewable energy) to ensure the understanding of future trends, competitive situation … as contribution to the product roadmap. Generation of application notes.-15%
•        Be part of the technical marketing/application engineering team and in this respect:
         support the generation of documentation/trainings material for customers
        Competition analysis on application/technology level and deliver inputs for related measures
        Identification von features and products that will generate value to our customers.-25%


Preferred Education & Experience:

•        Deep understanding in the usage of ceramic substrates in the power module industry
•        Application know-how in one or more of the target applications
•        Engineering level in the area of joining technology, electronic or materials science
•        Experience in working with customers in an international environment and with different cultural background
•        Experience in methods like APQP, PPAP, FMEA, QFD, SPC
•        Understanding of DIN ISO 9001, ISO/TS 16949, DIN ISO 14001 and country specific regulations (with focus on Asia)
•        Fluent English in written and spoken

sophia.yan@consultcareer.com.cn

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zhaohe2001| | 2012-7-20 15:04 | 只看该作者
如果主电路结构设计合理尖峰不会太大。吸收电路一般的用一个电容就可以

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kzzzzzzzzzz| | 2020-6-18 14:18 | 只看该作者
楼主你好,现在还在做开关磁阻电机控制器吗

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