DC-DC Inductor

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SpearMan74
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DC-DC Inductor

Post by SpearMan74 »

I went to a local store to buy the parts for the dc-dc converter. I got the zener diode, and the capasitor. When i asked him about the inductor he told me i had to have a certain value for it, like a resistor. Now Skyone's diagram just said any small inductor.

1. do i need to get an inductor with a certain value, or just a small one?

2.Can i run the n64's 3.3 off the dc-dc converter alone?(I know there will be lines on the screen but just for the weekend.)
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SpearMan74
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Post by SpearMan74 »

I honestly can't figure this one out. I searched.
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vskid
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Post by vskid »

If its just for the weekend, use an adjustable regulator, it works for mine. I think I'll go test battery life now...
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SpearMan74
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Post by SpearMan74 »

nevermind I'm stupid can a mod please destroy this.
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codeman
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Re: DC-DC Inductor

Post by codeman »

SpearMan74 wrote:I got the zener diode, and the capasitor.
A zener diode? Are you sure that's what you got? because i think you just want a regular diode. What are you using a zener diode for?
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timmeh87
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Post by timmeh87 »

skyone had a zenier diode in his diagram... i dont know why.
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Skyone
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Post by Skyone »

You can use a zener if it's the right value. I'm sorry I wasn't thinking at the time. A regular rectifier diode would be ideal in this situation. I'll fix it up.

EDIT: http://skytroniks.com/index.php?mode=diagrams

Rectifier's are very easy to find actually, most common.

Through research I've found that zeners work better than rectifiers, because they only accept a certain voltage range, which most zeners have. If you are lucky, Spearman, you have a zener that will work.
SpearMan74
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Post by SpearMan74 »

Yeah i got a 3.3v 1W zener diode. Would it harm if i use the dc-dc converter alone for 3.3v just for like an hour?
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Skyone
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Post by Skyone »

EDIT EDIT: NO! It would not work. You need a 9v zener to have it effect.
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Post by joevennix »

A 3.3V zener diode wouldn't work. 3.3V is the value at which the diode would allow current to flow either way. Since your battery pack/voltage source has to be 7.2V+, a 3.3V zener diode would do nothing. Make sure your zener diode is a couple volts higher than your voltage source.
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SpearMan74
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Post by SpearMan74 »

:cry: Aw......that was a half hour car ride..... so instead of a 9v zener what ohm for a regulator would work?
Yeah im a few minutes away from a temporary hook up of the screen, power, and n64.
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Skyone
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Post by Skyone »

What ohm for a regulator? You mean inductor? 8 Ohm - 100 Ohm.
SpearMan74
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Post by SpearMan74 »

Forget this post. It became obsolete.
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SpearMan74
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Post by SpearMan74 »

Ok. This is the last question on this thread. What ohm rectifieing diode do i need?

Everything i knew changed so i'm clueless right now...
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