Digital power factor correction

[japlytic]

http://www.cirrus.com/en/products/c/...dCampId=adspfc
http://www.powerpulse.net/story.php?storyID=22410

Marvell also has a discrete digital PFC solution as well.
I think microcomputer control for PFC and DC-DC converters (isolated and non-isolated, including plugpacks and ATX power supplies) is a great idea.

[everell]

Re: Digital power factor correction

Looks like an interesting device. They claim that it "improves energy efficiency". Just don't let pcbonez see this one - he emphatically says that PFC cannot improve efficiency. We don't want to start another war on this thread!!!

[370forlife]

Re: Digital power factor correction

They might mean it makes the PFC circuit waste less energy.

[Per Hansson]

Re: Digital power factor correction

They might mean it makes the PFC circuit waste less energy.

In other words increasing efficiency?

Okok, I'll try to not ruin this thread too
You with me PCBONEZ?

[PCBONEZ]

Re: Digital power factor correction

Here's an idea.
Use ONE less light bulb in your house.
A 25 watt would be enough.
You'll save as much or more than PFC saves you and you won't have to pay for extra parts in your PSU to support the power companies agenda and wallet.

That's how big an advantage PFC is to CONSUMERS.

.

[Toasty]

Re: Digital power factor correction

Looks like an interesting device. They claim that it "improves energy efficiency". Just don't let pcbonez see this one - he emphatically says that PFC cannot improve efficiency. We don't want to start another war on this thread!!!

I feel and Everell project coming on...

Oh come on! It's neat to watch the grumpy bastard grind the meat into pâté!!

[ as long as it's not YOUR meat ]

Kick 'em when they're up
Kick 'em when they're down
Kick 'em where they sit
Kick 'em all around

[PCBONEZ]

Re: Digital power factor correction

I get knocked down ♫ ♫ ♫ ♪
But I get up again ♫ ♪♫ ♪♫ ♪
You ain't never going to keep me down ♪ ♫ ♪ ♪♫ ♪ ♪ ♫

[Krankshaft]

Re: Digital power factor correction

I agree with PC PFC means shit to me if the power co starts charging me for poor PF then I'll pay attention.

The only thing PFC did for me in the 1 active PFC supply I have is it buzzes like all hell on my APC modified sine UPS it's not too noisy but noticeable. I love that word modified sine more like 3 stepped square wave.

[everell]

Re: Digital power factor correction

I feel and Everell project coming on...

Cirrus Logic claims that their new CS1500 chip uses a "digital solution" rather than the usual analog circuits. That definitely means the power supply will have greater efficiency.......doesn't it?????

I think a Bestec ATX-250 12E would look cool with DM311 5vsb mod, a CS1500 APFC mod, and a driver transistor mod between PWM chip and PWM FET transistor. That would mean that the "mains" capacitor would be running with 385 to 400 volts instead of 320 volts. Interesting (maybe spectacular!)................

[Toasty]

Re: Digital power factor correction

Yes. You have proven the "spectacular" point several times, IIRC....

Will I be able to see that from NJ???

[PCBONEZ]

Re: Digital power factor correction

OH I KNOW!
-
We could require all new refrigerators to have 6" of insulation instead of the typical 2" because that motor with the sucky PF kicking on all the time in millions of refrigerators is hurting the power companies wallet.

Oh and another!
-
Take that power hog 50-200 watt video card you have to recycle and use the on-board instead.
[And if you didn't and you're hooting about PFC being green then you're a hypocrite.]

.

[Toasty]

Re: Digital power factor correction

Oh god! Too much sugar in the coffee again, eh?

[370forlife]

Re: Digital power factor correction

Take that power hog 50-200 watt video card you have to recycle and use the on-board instead.
[And if you didn't and you're hooting about PFC being green then you're a hypocrite.]

.

Reminds me of the Toyota Prius. Sure they put out less emissions, but how much more emissions are put out making the car with all the extra crap that goes into them?

[PCBONEZ]

Re: Digital power factor correction

Reminds me of the Toyota Prius. Sure they put out less emissions, but how much more emissions are put out making the car with all the extra crap that goes into them?

Good point.

[ratdude747]

Re: Digital power factor correction

OH I KNOW!
-
We could require all new refrigerators to have 6" of insulation instead of the typical 2" because that motor with the sucky PF kicking on all the time in millions of refrigerators is hurting the power companies wallet.

Oh and another!
-
Take that power hog 50-200 watt video card you have to recycle and use the on-board instead.
[And if you didn't and you're hooting about PFC being green then you're a hypocrite.]

.

and trash that sweet muscle car and buy a tiny ricer too...

video card upgrades use more juice but enhance performance... bad analogy, but i see your point.

[PCBONEZ]

Re: Digital power factor correction

and trash that sweet muscle car and buy a tiny ricer too...

You'll do more harm to the environment manufacturing that ricer than maintaining the muscle car ever would.

[weirdlookinguy]

Re: Digital power factor correction

a tiny ricer

Rice is when some dumbass makes a laughingstock out of an import by trying to make it look cool. Normal import =/= ricer.

[PCBONEZ]

Re: Digital power factor correction

Rice Grinder = Jap Bike.

[weirdlookinguy]

Re: Digital power factor correction

Ahh, I see.

Good to know .

[Per Hansson]

Re: Digital power factor correction

That would mean that the "mains" capacitor would be running with 385 to 400 volts instead of 320 volts. Interesting (maybe spectacular!)................

Please do have a camera running when you try it the first time