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April 19, 2026, 01:39:46 pm
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Author Topic: Diode switch-on voltage  (Read 1152 times)  Share 

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shokstar

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Diode switch-on voltage
« on: February 14, 2010, 08:31:22 pm »
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When the diode reaches the switch on voltage of 0.7V, if we pump more volts into it will it use all of it? Or will it be passed off as heat or something like that?

i realize it might be a dumb question just need a bit of clarification
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appianway

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Re: Diode switch-on voltage
« Reply #1 on: February 14, 2010, 09:32:20 pm »
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It'll probably increase slightly, but it's so small that it can be ignored in most calculations. Most of the voltage drop will occur in other parts of the circuit.
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simonhu81292

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Re: Diode switch-on voltage
« Reply #2 on: February 14, 2010, 09:41:35 pm »
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i am not pretty sure, but i think voltage greater than the switch on voltage...
the current will be infinity, thus as you said i think it will heat up
correct me if i am wrong ..   ;)
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shokstar

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Re: Diode switch-on voltage
« Reply #3 on: February 14, 2010, 10:21:25 pm »
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Thanks for your help guys
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