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NiHaoMike · 11-05-13, 09:51 PM

I'm surprised it doesn't have continuously variable speed via some standard interface like 5V PWM or 0-10V. Who would buy a CVT that could only operate in 5 predefined ratios?

What might work is a 3 phase motor connected to a VFD. Efficiency might not be quite as good as a permanent magnet motor but if you get those items off the surplus market, you can come way ahead on cost.

11-05-13, 09:51 PM	#7
NiHaoMike Supreme EcoRenovator Join Date: Oct 2008 Location: Austin, TX Posts: 1,154 Thanks: 14 Thanked 257 Times in 241 Posts	I'm surprised it doesn't have continuously variable speed via some standard interface like 5V PWM or 0-10V. Who would buy a CVT that could only operate in 5 predefined ratios? What might work is a 3 phase motor connected to a VFD. Efficiency might not be quite as good as a permanent magnet motor but if you get those items off the surplus market, you can come way ahead on cost. __________________ To my surprise, shortly after Naomi Wu gave me a bit of fame for making good use of solar power, Allie Moore got really jealous of her...