Need help with the pth8080

[ZK2AC]

I've seen threads that said that when they ordered their free sample they made up the company names. Should I do the same for everything else?

Also which one should I get: WAH, WAS, WAZ, or whatever else their is?

[argelfraster]

I've only used the WAZ so i suggest that, but im pretty sure they all work.
Also you don't need to put in a company name ( i don't think ) but if you do, make one up.

[ZK2AC]

Ok yeah, I finished my account and when it sent the message to my e-mail i didn't get it.

another thing, do I actually need this pth8080 thing, like what does it do? Do I need anything else with it?

[argelfraster]

The regulator steps down the voltage of the batteries down to 3.3v which is what the one side of the n64 needs.
Along with the regulator you need a 100uf electrolytic capacitor ( anything over 10v ) and a 2.2k ohm resistor.

[snowpenguin]

I would use the PTH08000 if I was you. All it requires is the capacitor and a 2k ohm resistor. Just get all the free samples for PTH08000 and PTH08080, there's six, then you have extras.

[thewise1]

I would use the PTH08000 if I was you. All it requires is the capacitor and a 2k ohm resistor. Just get all the free samples for PTH08000 and PTH08080, there's six, then you have extras.

It's the same for the other regulator, you only need a capacitor and resistor. And the resistor changes the output voltage.

Anyway, you ideally want to use a 1.8kohm resistor. That will get you the closest to the 3.3 volts you need.
1.8K ohms - best
2 k ohms - good (use two 1k ohm resistors in parallel0
2.2K ohms - will still work

The reason people use the 2.2k ohm resistor is because it's way more common.

[snowpenguin]

1.82k ohms- 3.35v
1.89k ohms- 3.3v
1.97k ohms- 3.25v
2.05k ohms- 3.2v

I get several packs of 2k ohm resistors from RadioCrap and choose the ones that get me closest to 1.89k ohms. Even though they're gold rated, they still vary just enough to get down there.

On the PTH series, more resistance equals less volts, less resistance equals more volts.

Last night I thought to make an adjustable voltage regulator from a PTH08000WAZ and a 50k ohm pot. It didn't work. I don't know if I screwed something up, or pots just plain don't work, but I figured I share the info.

[ZK2AC]

OK thanks for your tips guys. Once I get it what do I do with it, where do I put it?

Are the 1.8 more expensive than the 2.0 ones?

[snowpenguin]

All resistors cost the same basically. Go to RadioCrap and get a few packs of 1k ohm resistors. Choose the two that get you closest to 1.89k ohms, then use skyone's diagram to build the circuit. Also at RadioCrap you will need to get a 100 uF electrolytic capacitor, of at least 10 volts I think. Just get a good amount of voltage.

[ZK2AC]

Ok I just ordered the pth08000 and the pth08080. I'm excited to get it in the mail!

I only got one of each because thats all I could get. I'll tell you guys when I get it. Im going to go buy the resistors and capacitors today.

Thanks again!

[ZK2AC]

*bump*

I just got the PTH08000 and the PTH08080 in the mail today and now i need to know where to put it on the portable.

Also, i still need to buy the capacitor and the resistor. Now i went on radiocrap.com and i found some 1k resistors with different watts, like,1, 1/2, 1/4, and 1/8, which one do i pick or does it not matter?
and i found a 100 uf capacitor w/ 50v is that too much?

[collinE]

Also at RadioCrap you will need to get a 100 uF electrolytic capacitor, of at least 10 volts I think. Just get a good amount of voltage.

do you know what the significance of the voltage is? like what does it mean to have a higher or lower voltage. just because I read a diagram that said 35v and I wanted to know how low you can go.

[snowpenguin]

Capacitors are not picky about voltage. To charge a capacitor up, you need pretty much any voltage below its rating. As long as the voltage of the capacitor is above the voltage of the power source, you're good. It's often common practice to get a Cap with a Voltage rating twice that of the power source, to allow for surges and stuff. So for most cases you should get at least, say, 16v for the PTH series.

[collinE]

that's the best explanation I've heard for that.

riddle me this smartypants: what about the uF rating?

[snowpenguin]

uF stands for MicroFarad. uF ratings specify how much juice can be held inside the capacitor, and is usually determined by the size of the plates.