In Reply to: Design,construction and testing of an electronic heat control circuit. posted by Madoda Xulu on 06/15/01 at 10:16 AM:
Ray is quite correct. The topic of heat control could fill several very large textbooks.
However, there are some excellent application notes available from various sources.
I suggest as a start that you go to Analog Devices' web site st http://www.analog.com/
and enter the word "temperature" into the keyword line. Click on "Go" and see where it leads.
Also, look into Linear Technology, National Semiconductor and Maxim too.
John Dunn - President