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A power transistor dissipates 5 W. If ambient temperature is 30º and case to air thermal resistance is 10º C/W, the case temperature is
- a)80ºC
- b)20ºC
- c)32ºC
- d)305ºC
Correct answer is option 'A'. Can you explain this answer?
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A power transistor dissipates 5 W. If ambient temperature is 30º ...
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A power transistor dissipates 5 W. If ambient temperature is 30º ...
In order to calculate the operating temperature of the power transistor, we need to know the thermal resistance of the transistor and the ambient temperature. The thermal resistance, denoted by θ, is a measure of how well a material conducts heat.
Assuming we have the thermal resistance value, we can use the formula:
Operating Temperature = Ambient Temperature + (Power Dissipation × Thermal Resistance)
Unfortunately, we don't have the thermal resistance value for the power transistor, so we cannot calculate the operating temperature accurately.
Assuming we have the thermal resistance value, we can use the formula:
Operating Temperature = Ambient Temperature + (Power Dissipation × Thermal Resistance)
Unfortunately, we don't have the thermal resistance value for the power transistor, so we cannot calculate the operating temperature accurately.
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A power transistor dissipates 5 W. If ambient temperature is 30º and case to air thermal resistance is 10º C/W, the case temperature isa)80ºCb)20ºCc)32ºCd)305ºCCorrect answer is option 'A'. Can you explain this answer?
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