Need to design a heater temperature control loop; for a small chamber, about 1sqft size to a fixed temperature, e.g. 35 C or so. Is there an IC that can read temp sensor and have an output control to drive FETs to control a heater?
Already have PWM controller which is getting its feedback from the CPU, and the CPU read the chamber temperature. I want to make this analog closed loop for simplicity.
Any thoughts on this?
You can take a look at our thermostatic switches and temperature controllers like the
and others in that category https://www.analog.com/en/products/sensors-mems/temperature-sensor-control-devices/temperature-switches.html
Most of these can drive a small FET directly.
We also have controllers than can read an external temperature from say a thermistor and provide control like the LTC1041:
These are all simple control schemes like BANG-BANG controllers. You would have to get into an analog PI or PID loop with OpAmps for more finessed control.