Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - No back-EMF DC motors?

Daox · 09-09-2010, 09:31 AM

Its my understanding that the back-EMF is not actually wasteful, it simply reduces power output. As the back EMF starts, it slows current through the coils and therefore less power is drawn during that time. The power is not lost to nothingness.

09-09-2010, 09:31 AM	#25 (permalink)
Daox Administrator Join Date: Dec 2007 Location: Germantown, WI Posts: 11,203 CM400E - '81 Honda CM400E 90 day: 51.49 mpg (US) Daox's Grey Prius - '04 Toyota Prius Team Toyota 90 day: 49.53 mpg (US) Daox's Insight - '00 Honda Insight 90 day: 64.33 mpg (US) Swarthy - '14 Mitsubishi Mirage DE Mitsubishi 90 day: 56.69 mpg (US) Daox's Volt - '13 Chevrolet Volt Thanks: 2,501 Thanked 2,587 Times in 1,554 Posts	Its my understanding that the back-EMF is not actually wasteful, it simply reduces power output. As the back EMF starts, it slows current through the coils and therefore less power is drawn during that time. The power is not lost to nothingness. __________________ Current project: A better alternator delete