thermistor

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    Transistor and thermistor problem

    Hello, I'm a noob at electronics so hopefully you guys can help me out; I'm trying to make a circuit that uses a transistor as a switch to a fan, the idea is to have a thermistor connected to the base of the transistor while the collector and the emitter to turn on a 5V fan when the thermistor...
  2. Details of the simulated dissipation constant in thermistor spice model

    I'm working on a project involving the simulation of NTC thermistors both in LTSpice and my own optimization scripts in Matlab. In the process of debugging, I noticed that LTSpice was producing unexpected behavior for a circuit I'd put together. The circuit in question is a thermal anemometer...
  3. How to properly power a heating element to stay within a range?

    Hello everyone! The title pretty much says it. I'm using two heating elements to heat up a vessel of about 4 in^3 and this is the way I'm thinking about doing it. (senior ME student here so please easy with the jargon) So here is the way I'm wiring the thingy: The problem with this setup...
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    Using a rheostat in place of a Glass Encapsulated NTC Thermistor?

    I have a flat iron hair straightener that I have pulled apart in the hope I may be able to control the temperature to a lower heat value. Currently, the lowest it reaches is around 330F. I would like to drop it to around 200-250F. I am wondering if anyone can help by telling me if I can replace...
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