This link has been bookmarked by 10 people . It was first bookmarked on 25 Jan 2007, by Guyal of Sfere.
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04 Oct 11
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17 May 11
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15 Feb 11
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In a real transistor, any restriction to the current flow causes heat to be produced.
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runs coolest when it is fully OFF and fully ON
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. When it is fully ON there is very little restriction so, even though a lot of current is flowing, only a small amount of heat is produced. When it is fully OFF, provided we can stop the base leakage, then NO heat is produced.
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If a transistor is half on then quite a lot of current is flowing through a restricted gap and heat is produced.
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The difference between PNP and NPN transistors is that NPN use electrons as carriers of current and PNP use a lack of electrons (known as "holes"). Basically
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29 Sep 09
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01 Sep 09
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25 Jan 07
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