Replies to post #61 on Ideal Power Inc (IPWR)

[tykundegex]

If Ideal Power's DC-AC converters are 98% efficient, then this means that no single element in the entire system is less that 98% efficient. From my understanding, CREE's MOSFETs are 99.1% efficient, measured standalone. I'm inclined to believe, therefore, that IPWR's electronics are as good, or better than this, and have even better size, weight, and cost advantages.

But I'm not entirely certain.. it's been years since my electrical engineering courses, and the details of these things elude me.

I hope they'll address the topic of CREE's claims on the call today. Would be nice to see that moat dug a little deeper.

[electricuniverse]

IPWR's new transistors that they are developing are silcon based, AND they are "BD-IGBT's - Bi Directional Insulated Gate Bipolar Transistors", instead of just IGBT's like they use today. And yeah, these new transistors are supposed to be approaching 99% efficiency.

Back in post #43 by ffoggy, the subject of CREE's new SiC mosfets came up, and if they posed a threat to ipwr's new transistor effort. My response was basical that IF they are better than the new BD transistors of ipwr, then ipwr could simply buy the new SiC mosfets and incorporate it into their design...worse case. They'll still have all the other advantages that their unique design gives them over the competition. However, I'm hoping these new BD transistors will be as efficient as the CREE SiC mosftets...and cheaper too.

Hope this clarifies things.