Max quantity of BM3 module parallel

KNJ

To expand to larger power volume, what's max quantity of BM3 module parallel?

and what's the recommendation of maximum switching frequency to hard switching case?

PaulKanatzar

Kenny,

Good question, thanks for reaching out. The maximum number of modules is going to depend on the current sharing from module to module during switching transients. The primary cause of the mismatch is generally parasitics in the bussing design although other delays in the signal chain could contribute. Typically the solution is to design in margin to account for the mismatch. Ultimately, the system design will dictate the limit. Given a perfect system there is no limit.

The maximum switching frequency is also highly dependent on the application. The module's ampacity vs switching frequency is given in Figure 23 of the datasheet. With the final system in mind figure 23 is a great place to start deciding on the best switching frequency.

TBhatia

Hi, I hope that this answered your question. I will close this discussion for now but if you have a follow up question, please "Start a New Discussion" and we would be glad to support you further.

KNJ

Thank you for your answer! It can be closed.