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Old 06-16-2009, 05:36 AM
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nilrehob nilrehob is offline
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Join Date: Nov 2008
Location: Sweden
Posts: 689
Originally Posted by tarassio View Post
Hi all.
This is my thought about heater.
It will be better to make coil and cut it in the middle,
than put switching element beetween these new two coils.
I will explain why. When you energize the coil and then cut ot in the middle,
you get the same pulse polarity but more strenght.
For example on the end named 3 on the image you get plus and on the end 4 you get the minus.
This eliminate problem with switching reverse polarities when directing current back to battery.
I only can't made switching for this type of circuit by myself and i hope that anyone suggest how to make it.
Thank you ALL!
Reminds me somewhat of US pat 4806834 (get it at pat2pdf)

Hob Nilre