| Re: other problem is no one makes 64 ohm [message #35074 is a reply to message #35073] |
Sun, 10 February 2002 15:48   |
Adam
Messages: 419
Registered: May 2009
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Illuminati (1st Degree) |
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I would hardly nit-pick over a 1 ohm difference in the network. That's just a little over within 5% tolerance which is better then most resistors anyway. It would make no difference at all 17 ohms or 16 ohms. By the way, power handling is increased with parallel resistors but not with series wired ones. You don't get a power handling gain from a series wiring, exactly the same as inductors. Adam
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| power handling [message #35075 is a reply to message #35074] |
Sun, 10 February 2002 16:19 |
Sam P.
Messages: 307
Registered: May 2009
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Grand Master |
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"You don't get a power handling gain from a series wiring, exactly the same as inductors". They sure do in the universe where I got my electronics training. Maybe there still is a misunderstanding here. Each part will dissipate power depending on it's share of the load. When building networks using resistors of all identical values, each will be dissipating an equal amount of power, up to it's individual limit, say 12 watts. Each will handle 12, so if 4 resistors, 48 watts. 16 resistors, 192 watts. Sam
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| Re: power handling [message #35081 is a reply to message #35075] |
Mon, 11 February 2002 08:54 |
Adam
Messages: 419
Registered: May 2009
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Illuminati (1st Degree) |
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I'm curious if I wire two 10 watt resistors in series, how the first one dissipates 10 watts, and then somehow magically manages to transmitt *another* 10 watts through itself so the second resistor can dissipate it. Each resistor will dissipate power in relation to its resistance if wired in series. If four 12 watt resistors are wired in series, the first would have to take 48 watts, the second 36 watts, the third 24 watts and the last one 12 watts for your model to be correct. Adam
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