Thank you very much , the plate is opened and the size of 90 mm and i need to keep on temperature of37 degA lot of specifics are unanswered, like size of plate, open or closed, uniformity of temperature needed, temperature range.
For starters, I would use a temperature-regulated hot plate. Surely, the arduino crowd has something like that virtually plug and play. You could also use a heating pad like the round one here: https://www.omega.com/en-us/industr...VR9bACh0_6wGTEAYYAyABEgJjmvD_BwE&gclsrc=aw.ds
Minco is another supplier.
And how could you plug the plate to the arduino , i understand the use of the silicon mat, but not the hot plate . or it is the same ?My advice is the same. You will not need much wattage. If the temperature must be stable across the plate, I would lean toward using a hot plate or aluminum disk slightly larger. The disk could have a machined depression to hold the plate more securely.
you mean as a heater?You might be able to make use of a 1500 watt 120 volt stove element, running at 5 or 12 volts.
12 volts should give you about 15 watts and 5 volts should give you about 3 watts.
Then you could just use your MOSFET and drive the element.
There are companies that make low voltage heater elements.
Yeah but i had asked later which power supply that we can connect to the Arduino board. i found the silicon layer heater onesIsn't that what we are talking about.