Super Flower Leadex Gold 550W PSU Review

[Guest]

Super Flower has made quite an impact on the PSU market. Its Leadex platform enjoys huge popularity, both under SF's brand name and other companies like EVGA. The newest Leadex Gold-rated PSU with 550W capacity is on our test bench today.

Super Flower Leadex Gold 550W PSU Review : Read more

 

[blazorthon]

Granted the EPS and PCIe wires don't see very high current in most situations (especially the EPS with Haswell or Skylake CPUs), I hardly ever see other PSUs using thinner gauge wires, so I can't imagine it saving enough money to be worth going thinner than the recommended 18 gauge wires most other PSUs have regardless of capacity.

 

[Quaddro]

Why crapxon?
I'm tired to see bulged crapxon..

If this one use jap caps, it'll be absolutely perfect..

 

[iam2thecrowe]

I wonder if it's just a faulty unit with the low hold up time?

 

[Mac266]

I wonder if it's just a faulty unit with the low hold up time?

My first thought too

 

[Aris_Mp]

The APFC caps have the advertised capacity so there is nothing wrong with this PSU.

 

[mctylr]

Unfortunately, the bridge rectifier's markings are on its hidden side, and we try to avoid desoldering these type of parts since they are extra sensitive to increased heat

Huh? Since when are bridge rectifiers particularly heat sensitive? I would say that bridge rectifiers are not worth the hassle to desolder, unless you suspect it was an underrated part.

APFC controller is an NCP1653A provided by ON Semiconductor. It's installed on a small vertical PCB and is covered by insulation tape in order to decrease EMI noise.

That looks like paper and vinyl / PVC electrical tape wrapped around the vertical PCB, which provides electrical isolation only, I doubt it would make measurable difference in EMI.

 

[Aris_Mp]

According to my experience so far they are, unfortunately.

This provides some EMI protection. There is no need for electrical insulation on this board. As for the degree or EMI protection I can examine this with my EMC probes (once I find the time to do it).

 

[Andi lim]

this review said uses a half-bridge topology, I only see one main capacitor. half bridge usualy uses 2 main cap and 2 main switcher right ?

 

[Aris_Mp]

the number of APFC caps has nothing to do with the primary topology. However yes half-bridge uses 2 switchers.

 

[Andi lim]

You are right, this is half bridge with LLC series resonant converter, nothing wrong with the primary capacitor.