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LOL what did you do, by a box full of them off of ebay or something?



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http://www.paysonarizona.net/

I installed the (Radio Shack) adapter first. And after realizing my laptop has no floppy (drivers were ona dumb floppy) I had to transfer them over the network. Then pointed the windows driver...

Some new cars control the start time via their PCM. Like my uncles Toyota Tundra. You can tap the starter position very quickly and it will continue cranking after you let off until it starts. It...

Long time no talk for me.

But today I decided to try my Laptop out for programming the pbasic controller and remembered it had NO serial port.

SO doing a search I found this thread. Went to...

Dave, that's about it. i think the digital amp switched the output at like 250Khz or something silly. Then it's filtered. Because it's filtered, THAT is why it needs specific speakers.

Car amps...

I love Digi-Key

As it turns out, Digi-Key is why i found parallax. i was looking through it one day and saw microProcessors. I knew i wanted to buy one seom day.

I did a search on eBay and...

I'd like to build a digital amp if possible. But from what I read, they are HARD to design and you have to use specific impedance speakers on them. You can't swap whatever you want like you can with...

What IS an SX18?

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http://www.paysonarizona.net/

---Bump---

Anyone?

I haven't played with it anymore since the other day. But hoped someone would have used PWM IC's before to give be a head start.

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Under $2, you mean under $200 or $2,000?

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http://www.paysonarizona.net/

Awesome. :)

Imagine using an entire vacuum tube (and all the electricity/heat generated) to store as little as ONE BIT!

And I'm concerned about the power my DDR memory is going to draw from my...

Hey guys. I've been sooooo busy at work that I haven't had any time to work on my projects/hobbies in months.

Anyway.·I finally ordered a few PWM IC's to play with and messed with a few of them....

Several months ago I was buying some IC's and other upplies that were being phased out!

And a few weeks ago I went to look for a Sharpie (Anti Etch) marker. NOPE! No got. But they still sold it in...

http://forums.parallax.com/images/smilies/devil.gif·· F.C.C.=·F______ Communication Cops!

At least that is what I was told. Does it stand for something else???...

http://www.i4at.org/lib2/inverter.gif

It's been a while since I've seen an "Astable Vibrator"

I think I remember the name correctly, right?

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Oh yeah. I saw some cool PWM IC's that even could run two switching transofrmers at the same time and even had a POWER GOOD logic level output PERFECT to work with what i want. But they need too darn...

There is this new board at Fry's electronics I'm eyeing.
It's only $169 and is a Via chipset with an embedded Via 1Ghz processor. There is a CPU heat sink but NO fan required!

I'd bet it would...

I believe it was about 12 inches wide by about 20 or so inches long!

26 of them FAT output transistors and 12 Mosfets!!! You KNOW it was crammed in there!
and like I said. There is several...

Funny.

I think I mentioned this on another thread, but I killed my computer last weekend by BORROWING the CPU fan form my home PC to test another motherboard and didn't clean off the old gray...

No. I was using it JUST to run the board and CPU. the drives ran from seperate 12 and 5VDC

Bit still not enough.

So it's still on a small 120VAC power supply ran off of a small inverter. no...

I know. I wonder WHAT it is switching. I'd THINK it woiuld just provide power to the PWM IC's or something. NOT the power to EVERYTHING.

So... WHY does IT smoke???


the first board ran for an...

http://www.paysonarizona.net/Junk/0402405_0986.JPG

OK. I pointed it out. THAT is what fries.·A LITTLE tiny switching transistor·I think. Surface mount!

It's NOT the regulators burning. I think...

What size of WIRING and SOLDER traces would you need at 2VDC to provide 500 watts????


I'm actually working in my own PWM power supply, as mentioned in another thread.
But just MAYBE 100 watts...

well that is a TESt. So IF·I can make the 3 or 4 nesessary transformers fit on one 3X5 PCB, then it WILL have short leads.

Why the cap on the PRIMARY side?

I bought several PWM IC's a while...

some may remember I bought a CHEAPO 2X16 serial display form ebay. I had to assemble the converter board myself and it seems to be limited to instructions.
Got what I paid for.

Now. Reading what...