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thanks eric... i'll give it all a go in a short while... gotta finish writing about it first in my report lol. i'll let everyone know of it's success and post a final schematic for anyone else who needs to make a temperature dependent switch once it works :D
mm i'm not sure if it died whilest it was driving the FET. it all happened rather quickly. however; yes it was connected to said fet. to test if the temperature sensor will work safely with the big battery shall i connect one up w/out the fet (as i don't have one of those anymore :p) and put my...
well i thought that the risk of the TC622 being fried if it were powered by a car battery too high; as it can only tolerate up to 600µA. However... do you think it may be safe to get rid of the 6V (4* 1.5v AAA batteries)? i shall include a schematic of my original circuit... which instantly...
nah the temperature for incubation is a constant 37.5degrees Celsius... which is the same as our core body temperature. haha you should be worried if you can smell pork... but half a degree is ok when we consider the hysteresis of the TC622 :p
anyways... any verdicts on my design?
well to tell you the truth i wasn't sure where to put the fuse... it looked ok there at the time. i'm guessing it should be between the light and s on the fet? 50% chance of being right :P for the mosfet i was thinking an IRF520; which has a tolerance of up to 8A. oh yes that means i need to...
schematic
ah yes a schematic... sorry about that. n00b mistake - trust me :D i haven't any drawing programs installed at the moment so we'll have to look at my nicely hand drawn one. yeah the trip point temperature is 38deg C = 311.15deg K... which i substituted into the formula on the data...
hello people, i have slight dilemma. i need to build a thermostat to control a heating element in an incubator (for an engineering project), and i'm not sure of whether or not my design will work. i have a TC622EAT temperature sensor configured as following:
Vdd to +6v
Gnd to gnd....
Tset -...
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