On Sunday 04 March 2012 10:34:32 Joachim Franek wrote:
> 
> 2. Add 6 and gates to stop motor commutation in case of to high DC voltage.
> 

Search the net for "IGBT protection" and find for example:
ir2137igbt.pdf: IGBT Protection for AC and BLDC Motor Drives
fuji_igbt_application_manual(REH984).pdf: See chapter 5.


Joachim 

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