PTC/Resistance for 150°C at 220V AC and 24V DC

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SUMMARY

The discussion focuses on determining the appropriate PTC (Positive Temperature Coefficient) resistance value required to achieve a temperature of 150°C for both 220V AC and 24V DC applications. It emphasizes that the heating of a resistor is contingent upon its ability to dissipate energy effectively, highlighting the importance of heat loss in the calculation. The specific formula for calculating resistance based on power dissipation and thermal characteristics is not provided, indicating that the answer is context-dependent.

PREREQUISITES
  • Understanding of PTC thermistors and their thermal properties
  • Knowledge of electrical resistance and Ohm's Law
  • Familiarity with power dissipation calculations in resistive components
  • Basic principles of heat transfer and thermal equilibrium
NEXT STEPS
  • Research the formula for calculating resistance based on power and temperature rise
  • Explore the thermal characteristics of PTC thermistors and their applications
  • Learn about heat dissipation methods in electrical components
  • Investigate the differences in thermal behavior between AC and DC circuits
USEFUL FOR

Electrical engineers, circuit designers, and students working on projects involving thermal management in resistive components.

sumit_volant
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What should be value of PTC/ Resistance to raise its temperature to 150 deg Celsius for 220V AC and 24V DC..
Please explain this with required formula...
 
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Impossible to answer. It depends on how quickly it losses heat.
Remember that a resistor wil heat up only if it can't dump the dissipated energy quickly enough.
 


sumit_volant said:
What should be value of PTC/ Resistance to raise its temperature to 150 deg Celsius for 220V AC and 24V DC..
Please explain this with required formula...

What is the context of the question? Is it for a project or for schoolwork?
 

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