Questions tagged [temperature]
Temperature is a property of a substance related to the amount of heat energy it contains.
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What makes a MCU capable of higher temps than another?
Just an example - STM32F722 has a few versions, but I'm talking about just the variance between two numbers: RET6 vs RET7. The former has a max operating temp of 85C, whereas the latter says 105C. ...
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Ultrasonic Piezo Crystal properties, temperature and phase
I have a pulse consisting of sine waves driving a piezo transducer at around 120kHz into a gas.
If the gas temperature remains constant, but the temperature of the piezo changes how will that affect ...
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Temperature Sensor Auto
I'm trying to make a temperature sensor for a Golf MK2, with an LM3914N to light an LED bar with 10 LEDs and in the signal I'm using a voltage divider for R2 to be the temperature sensor that operates ...
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Temperature dependent characteristics of a diode
I understand why the forward voltage decreases in the diode due to the increase in temperature (since the intrinsic carrier increases and that decreases the voltage since intrinsic carrier and the ...
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Which component is likely raising the temperature measurement on my BME680 sensor board?
I have integrated a BME680 temperature, pressure and humidity sensor on a PCB with NL27WZ17 Schmitt triggers (U3 & U4), a RT9193-33GB LDO regulator (U1) and a CM1224-04SO ESD diode (D2). I also ...
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Weird SRAM failures when heat is applied to the system and when probed
I'm providing assistance on a project that is encountering some interesting behavior on an SRAM memory device when environmental temperature goes up or when someone probes/touches lines associated ...
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How do I handle up to 40 Amps continuous current in an ESC (Electric Speed Controller) for my PCB? Specifically heat generation
I have an electric longboard that can consume up to 40 Amps continuously. Here is my schematic:
I have a couple questions.
Do both the high side and low side MOSFETs experience the same heat ...
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Carrier concentrations versus temperature and doping in Matlab
I am currently self studying structure of semi-conductors and I would like to make a graph in Matlab of the number of carriers as a function of temperature and doping. Let's say that I am testing ...
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PT1000 drifts more than 100°C
I'm using a PT1000 and MAX31865 to measure the temperature inside a machine.
Electronics (MAX31865 and MCU) are inside an isolated box. The PT1000 is outside and connected in two wire configuration (...
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Simulate hall voltage as a function of temperature in LTspice
I'm trying to simulate how temperature affects voltage sensitivity in my hall sensor from LTspice. How do I make use of this equation to get my correct output? Any feedback will help, thank you. I ...
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What's the purpose of temperature ratings of conductors (wires)?
In countries governed by the NEC (like the US), insulated wires typically have insulations with 60, 75 or 90°C temperature rating. Wires have listed ampacities based on their insulation and other ...
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Batteries safe for use in low-pressure conditions
I want to create a device for use in skydiving.
Why when there are ready-made solutions? Because I am a skydiver and an electronics hobbyist, I would like to create something myself and experiment ...
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How to best relate a case temperature measurement with the actual junction temperature?
If I have 4W of power dissipated through a transistor (as derived from measured current and the datasheet's on-resistance) and I measure 40 deg. C on the case of the transistor, what is the best way ...
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Thermistor misreading
I'm currently working on a hotplate project with an ESP32, utilizing a 10k ohm NTC thermistor (B57550G1103F000) capable of measuring temperatures up to 300°C. However, I'm encountering issues with ...
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Cooling fan direction
I am building a temperature controller. The controller is built in a metal rack mount chassis. The components inside the controller generally consist of ACDC power supplies, an arduino and small ...
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