Antec EarthWatts 650W

[Stefan555]

The new Antec EarthWatts 650W

http://www.antec.com/us/productDetails.php?ProdID=27650

The unit is specified with out of spec noice.

Can it really be a Seasonic? It smells FSP for me.

[ARS]

it looks different from EA500w....

[Stefan555]

Yes it does, but its difficult to tell just from the outside.

I was surprised the noise was out of spec. I can't recall I have seen a Seasonic built unit out of spec.

[Lemmy]

I think you're right, It's way to cheap to be a Seasonic, in Romania it's as much as the VX550, which doesn't make sense :crazy:

[Stefan555]

Here in Sweden VX550 is 13$ cheaper than EarthWatts 650. The VX550 is real bargain here.

[burebista]

The VX550 is real bargain here.
Cam we move to Sweden? :D

[Stefan555]

For the power supplies or the women?

VX550 is about 100USD here, its expensive comparing to the US, but they dont have 25% VAT

[burebista]

Here is ~$128.
BTW, for womens we expect Sweden to come here. :p

[SKYMTL]

Why do they have two seperate areas for ripple and noise? This is the second time in the last three days I have seen BOTH specified in a chart with drastically different values.

[HOOfan_1]

Why do they have two seperate areas for ripple and noise? This is the second time in the last three days I have seen BOTH specified in a chart with drastically different values.

and how can they have a column for Noise, but no column for Funk? Are they saying this PSU can Bring in the Noise, but it can't Bring in the Funk?

[jonnyGURU]

and how can they have a column for Noise, but no column for Funk? Are they saying this PSU can Bring in the Noise, but it can't Bring in the Funk?

LOL!!!!!! +++++11111!!!!!!

[spursindonesia]

For the power supplies or the women?

VX550 is about 100USD here, its expensive comparing to the US, but they dont have 25% VAT

102 US$ here in Indonesia, with 10% VAT + 10% import duty + high transportation cost. :rant:

[SKYMTL]

My question still stands: the other day I saw a PSU with a label like this saying the following:

+12V ripple: 120mV
+12V noise: 240mV

Is this something that they now have to disclose?

[g1raffe]

45A seems a little low for a modern 650W?

The 650W model doesn't appear to be sold in Aus yet. So not sure of pricing.

[jonnyGURU]

45A seems a little low for a modern 650W?

540W? Not really. That's 83% of the PSU's total capability.

[Stefan555]

Is noise as harmful as ripple is? High ripple can damage other components. How about noise?

[cypherpunks]

Why do they have two seperate areas for ripple and noise? This is the second time in the last three days I have seen BOTH specified in a chart with drastically different values.
Technically, ripple is variation at the switching frequency. Because this is relatively low frequency (200 kHz), it doesn't radiate from the wiring too easily, but takes large capacitors to filter it out. Also, the Forward converter topology has some intrinsic advantages over the Flyback topology here.

Noise is generally higher frequencies, particularly multi-megahertz switching noise that is the "click" of switches and diodes slamming open and closed. This is more of an FCC certification issue, as it radiates from the wires, but the high frequency can be filtered with relatively small capacitors. Also, the motherboard and processor generates tons of high-frequency noise, and there's a point where the PSU's contribution is negligible.

The latter is why the ATX spec calls for ripple and noise testing to be done in a 20 MHz bandwidth and with a couple of filter capacitors across the probe point; they don't care about higher frequencies. (Although the USB instruments' "Stingray" that JG uses can't even measure in THAT bandwidth, which would require at least a 50 MHz sampling rate plus good reconstruction filters, or 100 MHz sampling rate with not so good interpolation.)

Given that the "ripple" spec they quote is an exact copy of the ATX spec, it's possible that that's measured in the ATX spec bandwidth, and the "ripple+noise" column is measured in a wider bandwidth. I can imagine the manufacturer having some internal specs for higher frequencies which got translated into what you see on the web site. I'm not sure; the whole reason that the ATX spec defines a ripple+noise measurement technique is that there isn't a universally agreed upon one. But it would make sense.

[g1raffe]

540W? Not really. That's 83% of the PSU's total capability.
Yea, I guess so.. It is certainly lower than most other modern 600-650W units though, Corsair TX-650, Antec TP-Trio 650, Silverstone Olympia and Decathalon 650W, Corsair HX-620, Antec NeoPower 650W, Seasonic S12+, TT Tough Power 600W, etc, all have more power on the +12V rail/s.

[SKYMTL]

Thanks Cyerpunks. It makes alot more sense now.

High ripple = potentially damaging to components
High noise = not damaging to components but may interfere with things likle the transmission of audio signals.

[cypherpunks]

Thanks Cyerpunks. It makes alot more sense now.

High ripple = potentially damaging to components
High noise = not damaging to components but may interfere with things likle the transmission of audio signals.

Well, unless one or the other is REALLY high, it's more like "destabilize" than "damage". It is true that capacitors need to be rated to filter ripple. All those
electrons sloshing in and out can actually heat up high-loss capacitors, and as you know, capacitors don't like heat. (This is large electrolytic caps; the small beige ceramic capacitors you see scattered all over the motherboard are too small, and ceramics are lower-loss anyway.)

The main difference is that ripple is bascially confined to the wires, while higher frequencies can go through the air and interefere with circuits they aren't even touching. Have you ever had a GSM cell phone next to an audio circuit?

[ronliang]

My local retailer told me EA650 was OEMed from Delta.
All the antec's new products in the coming year are from Delta.

[Spectre]

My local retailer told me EA650 was OEMed from Delta.
All the antec's new products in the coming year are from Delta.

I very much doubt the EA650 is a Delta.

[ronliang]

I very much doubt the EA650 is a Delta.


I think it's more possible from delta than from FSP.
By the picture on Antec's website.

[Spectre]

I think it's more possible from delta than from FSP.
By the picture on Antec's website.

It looks sort of like a DPS-650ABA but that would a rather expensive solution for Antec to be using in that target range.

[ronliang]

It looks sort of like a DPS-650ABA but that would a rather expensive solution for Antec to be using in that target range.

very likely.

PS: GPS-650AB A
also a black version GPS-650AB B
DPS-650AB is another one.

[Stefan555]

I can't judge from the pics, but it's not impossible. Didn't Jon guess Delta will build the new Antec Signature Series? This will fall in line if Antec wants to use Delta as OEM for more PSU's.

[ronliang]

I can't judge from the pics, but it's not impossible. Didn't Jon guess Delta will build the new Antec Signature Series? This will fall in line if Antec wants to use Delta as OEM for more PSU's.

Antec's Known Delta OEM products:
EA430D EA500D EA650 BP550plus

[g1raffe]

Antec's Known Delta OEM products:
EA430D EA500D EA650 BP550plus
EA430D and EA500D?

What are they? New revisions of the Earthwatts? Are Antec changing the entire Earthwatts line to Delta? :crazy: