Would this work?

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JonathanMC
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Would this work?

Post by JonathanMC » Sun May 22, 2011 3:27 pm

Would this regulator work for stepping 7.5V to 12V. It should, but just checking to be sure.
http://focus.ti.com/docs/prod/folders/p ... 61170.html
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Re: Would this work?

Post by bassmasta » Sun May 22, 2011 3:38 pm

Maybe, but you won't get much current from it. (300ma)

What are you using that requires 12V? Many things can run on less.
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Re: Would this work?

Post by JonathanMC » Sun May 22, 2011 7:06 pm

It's for a 8" Screen. This regulator is another option?
http://focus.ti.com/docs/prod/folders/p ... 61175.html" onclick="window.open(this.href);return false;
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Re: Would this work?

Post by bassmasta » Mon May 23, 2011 12:05 am

Probably would work.

Check on the motherboard of the screen for voltage regulators to be sure that you have to run it at 12V. Have you tested even just putting 7.5v in at the input point?
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Re: Would this work?

Post by JonathanMC » Mon May 23, 2011 4:21 am

I have tested and 7.5V doesn't work. I guess I'll go with the first regulator
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Re: Would this work?

Post by JonathanMC » Mon May 23, 2011 5:12 am

How would I wire it up?
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Re: Would this work?

Post by bassmasta » Mon May 23, 2011 12:57 pm

Sorry, the first one will not work, now that I think about it.

As for wiring it up, look in the datasheet for the regulator.
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Re: Would this work?

Post by JonathanMC » Mon May 23, 2011 1:53 pm

Oh, I see now that the first regulator outputs 12V from 5V. But would the second one work? It looks like it has the same problem. What regulator could I use to increase 7.5V to 12V???
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Re: Would this work?

Post by bassmasta » Mon May 23, 2011 2:05 pm

The first one will boost the voltage successfully just won't provide enough current to run a screen.

The second one should work but you are going to need to ask someone more knowledgeable than me about electronics for the resistor/capacitor/inductor values.
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