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Posted by Mansoor on November 9, 2008, 6:55 am
Please help me in solving this problem :
Design a circuit to control teh temperature of a water bath at a setpoint temperature of 75 degree celcius. Choose a resistive sendor and draw up a bridge circuit which will provide a control around the setpoint. Suggest values for all components to be used. Heat can be supplied to a heater in the bath using power amplifier which requires 0 to +0.5 V for zero to maximum power output.

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Reply by Max on November 19, 2008, 1:23 pm
I just feel for you and wish I could help you. Im a College student and would see what I can do. Cheer up man!!
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Reply by Carlos Gamero on December 5, 2008, 7:11 pm
Hi, in this page a Wheatstone bridge is discussed as a way to control temperature.http://www.doctronics.co.uk/voltage.htmSo maybe set one up so that the output is 0.25 Volts when the temperature is 75 F?
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