WEBVTT

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Here Joule losses will be induced in a transistor used in resistive mode

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Voltmeter on the MOSFET and ammeter in series to calculate the power dissipated

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The ambient temperature (laser measurement) is 31 ° C

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The transistor dissipates 4.1 V * 1.6 A # 7 Watts

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50 ° C. is already measured on the transistor

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It has risen to 60 ° C

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69 ° C

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I stop at 83 ° C after only a few seconds!

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I will use a small aluminum heatsink (radiator)

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Air at 28 ° C, heatsink at 29 ° C

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30.7 ° C very slight increase (P # 7 Watts again)

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At the end of the same time, we are barely at 32 ° C!

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After one minute, 35 ° C, this radiator dissipates our 6 W by increasing only 7 ° C!