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look like evga G7 phototype after tradewar

i have some issue with facebook( i don't know why they reject my .com domain because it is SPAM). so f14lab.com domain will redirect to f14lab.org
btw after take over months learn to use and...

still slow sample rate/mem depth compare with osc to catching all ripple/noise waveform
I have in my hand some benchtop DMM: chroma 12061, fluke 8845a, and DAQ agilent 34970a(34901/34902)

so this is 550w psu or 250w psu ?
I don't see load test on 550w

I don't think this can get over 87% eff even test in 240VAC
platform use PFC/PWM CM6805BSX look like some cheap product from 1st player

it's have DC to DC :D

don't forget the fan . this with blow some heat in diode bridge.
seem need someone make a test ;)

it just a elite V3 platform and they send it to 80plus to get the certified . it better for selling

look like Comstars/KT OEM

We use this GW version from 2018 until now :D

yes . No PFC.
advantages: prevent customer manual blow-up the psu. because no red switch and relay NC always is 220v range .Maketing & sale will have selling point "look like" active pfc in cheap...

it no red switch because it have "auto voltage" circuit ( small board sit in AC connector)
detect main voltage change and switch by relay
same cougar SL series
4200

12KJ capacitors . 12KJ.com

5x 25amp Bridge Rectifier just for standby circuit :o

It not a H6/GX platform.
Just a budget 80+gold platform . look like it same xigmatek minotaur series with japanese cap

I have one . MWE 700 v2 white. and very loud noise :( like inductor vibrating

P650B have vrm(dc to dc), japanese cap and sightly higher efficient . vs650 use old group regulated . i dont know how vs650 is better?

Nope. Connector melting/burned . not the cable . when rx470 take to much power from pcie lane. I see a lot of case burn the 12v circuit line in mainboard and sata connector ( if they use a riser)

they use a lot of brands of oscilloscope :D

correct. Still small but growing up
Btw CWT have factory ( produce component like tranformer and coil) in north VN

. look small coil between two tranformers( 5vsb tranformer and main tranformer) like Magnetic Amplifier 3,3v circuit . hope I'm wrong:(
3849

I open this up in 2013 . not now so I dont have any picture
I dont think it strange . the platform is same any non pfc psu. "Auto range" aka voltage detect just a add-on circuit. Mornitor voltage...

Yes. I'm opened this . cougar have two version SL one with auto range and one with red switch .
https://www.newegg.com/p/N82E16817553018
You can see a small pcb sit in ac connector . this is...

cougar SL have auto range ( auto switch without PFC) it use a simple voltage detect circuit and switch by relay .

S12III is rifle bearing too. I opened some to see the bearing