Thermistors and Computers

It is common to find thermistors being used in more applications with each passing year. Thermistors can be found in microwaves, circuit protectors, automobiles, digital thermometers, rechargeable batteries, and more. Recently, computer hardware companies like EVGA have been utilizing thermistors in their devices. EVGA is known for their GPUs (graphic processing units), and now they are built with a thermistor to monitor and cool the components of the chip. By introducing an NTC thermistor to a PCB (printed chip board), the chip will be able to have decreases in resistance that are directly proportional to small increases and decreases in temperature.

A thermistor's function on the GPU is to measure the temperature of the backside of the unit, the memory temperature, and also the power temperature. EVGA uses thermistors over thermocouples because they found readings to be more accurate and reliable. On top of being accurate to reality, thermistors also help to reduce noise produced by computers significantly. A thermistor allows for the VRM of a fan to spin slower, which creates less noise. EVGA can have the GPU and VRM fans turning asynchronously.

Within this application, an NTC thermistor will work to limit currents at a low temperature. This is done as a means to control the VRM fan's revolutions per minute. As the temperature increases, the fan speed will pick up to help keep the system cool.

Our thermistors can be found in all sorts of machines. We can help you build custom thermistors for any device and application. Give us a call to know more.

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