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Electronics => Beginners => Topic started by: FriedMule on July 27, 2018, 08:52:33 pm

Title: How do I make a simple dc constant temperature controller
Post by: FriedMule on July 27, 2018, 08:52:33 pm

I hope that one of you can help me constructing a simpel diagram:-)

I need to keep the temperature on a heatsink at +25 degrees celsius +/- 0.5 degrees.
It is to keep some IC chips at there optimum temperature the whole time.
If it is possible, it could be fantastic if a dual color LED could change color from i.e. green when inside the allowed temperature and maybe red when outside.

Hope that my explanation is sort of clear.

Title: Re: How do I make a simple dc constant temperature controller
Post by: Muxr on July 28, 2018, 05:22:22 pm

Your initial question is too vague. You need to expand on your requirements a bit.

How are you measuring the temperature of the heatsink? Do you just plan on sticking some sort of a sensor on the heatsink?

Are the ICs you plan on keeping at 25C heating up on their own when they are in operation? Or are you looking for an Oven controller circuit? If not are you looking to control some sort of a fan?

Title: Re: How do I make a simple dc constant temperature controller
Post by: Zero999 on July 28, 2018, 07:25:18 pm

Quote from: FriedMule on July 27, 2018, 08:52:33 pm

I hope that one of you can help me constructing a simpel diagram:-)

I need to keep the temperature on a heatsink at +25 degrees celsius +/- 0.5 degrees.
It is to keep some IC chips at there optimum temperature the whole time.
If it is possible, it could be fantastic if a dual color LED could change color from i.e. green when inside the allowed temperature and maybe red when outside.

Hope that my explanation is sort of clear.

Then you'll need both a cooler, especially this summer, as well as a heater. A thermoelectric cooler/heater is probably the best way to go. To change from cooling to heating and vice versa, all that's needed it the direction of the current to change.