Retailer dealing in kw level magnetic ampliphiers?

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SUMMARY

The discussion centers on the use of magnetic amplifiers in Tesla's electric vehicles, specifically in relation to their 3-phase AC motors. The participant reflects on past experiences with Bob Carver's M1.5 audio amplifiers and questions the relevance of saturable core reactors in high-power applications. The consensus indicates that Tesla relies on efficient switching power supplies and variable frequency drives (VFDs) for energy conversion, rather than magnetic amplifiers, which are deemed less suitable for modern applications. The primary concern highlighted is energy storage, particularly with Tesla's use of approximately 7,000 lithium-ion batteries in their vehicles.

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  • Understanding of 3-phase AC motors
  • Familiarity with variable frequency drives (VFDs)
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[SOLVED] retailer dealing in kw level magnetic ampliphiers?

I've been looking at building a hybrid electric car for the last few years and saw that Tesla Motors uses a 3 phase AC motor. Long ago I used to own one of Bob Carver's M1.5 audio amps. I never did take the amp apart to figure out how he did it. But lately it's seemed to me that his mag-amp idea was being used by Tesla.

My research into high powered saturable core reactors has yeilded only low power devices.

Can anyone at the forum point me in the correct direction?
 
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Why would you think that Tesla is using magnetic amplifiers?

They are using ~7000 [6831 in the case of the Roadster] lithium ion batteries that weigh 900 pounds. [batteries sell for about $100 per pound]

Switching power supplies and VFDs are up to 95% efficient. The problem is energy storage, not power conversion.
 
Last edited:
Ivan Seeking said:
Why would you think that Tesla is using magnetic amplifiers?
Because I'm old? I guess it wouldn't make sense to use mag amps. They probably came to mind because of their reliability. I used to burn up transistors as a kid all the time. After they invented them of course.
They are using ~7000 [6831 in the case of the Roadster] lithium ion batteries that weigh 900 pounds. [batteries sell for about $100 per pound]

Switching power supplies and VFDs are up to 95% efficient. The problem is energy storage, not power conversion.

I guess I've been trying to figure out what's in their black box of a controller.
I've never heard of a VFD (http://en.wikipedia.org/wiki/Variable-frequency_drive" ).
(10 minutes of research)
Ok. That makes sense.
Thank you.

Of course I'm just trying to avoid the $55,000 cost of the http://www.acpropulsion.com/ebox/pricing.htm" .
 
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