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Thread: "Fhy" caps, "AT2005" PWM controller, CWT's PSH & DSH

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    Default "Fhy" caps, "AT2005" PWM controller, CWT's PSH & DSH

    Question 1: Who knows if this "Fhy" brand cap has something to do with the Fuhjyyu?
    http://power.zol.com.cn/92/929089.html
    http://img2.zol.com.cn/product/19/921/ce14569QFVbc.jpg

    And this "BH" cap?
    http://img5.pcpop.com/ProductImages/.../000538610.jpg

    Question 2: What company made "AT2005" controller chip? (Solytech's favorite on cheap units) I can't find information and spec of this chip. The result from Google says it's a Supervisor chip with PWM control function.


    BTW: After disassembling a JHT 860ELA(CWT OEM) I discovered it's a slightly different version of PSH. Actually it's a DSH860V. So the HiPer OW just reviewed is kind of a DSH, not PSH. "D" stands for "Data Well" which is a branch of Channel Well Technology in mainland China. I can't find difference between a DSH and a PSH, Regarding the design and the overall performance I think they're just the same. So OW what's your opinion? How do they differ?
    It looks like a PSH based model, like the Corsair TX750 I mentioned, but all the components are in different locations.
    a pic of JHT 860ELA (CWT DSH860V)
    http://img5.pcpop.com/ProductImages/.../000514214.jpg

    edit: Another question for OW
    http://www.jonnyguru.com/modules/NDR...W/Dscn3271.jpg
    I see that large power resistor on the supervisor daughter board again in 860ELA,
    as you've said, it's used as a minimum load on PSU's startup, right? I'm not quite sure about that.
    Last edited by Travis; 05-31-2008 at 12:01 PM.
    It's been a hard day's night and I've been working like a dog.

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    Default

    FHY = Fulltec
    BH = Pro An

    I don't know who makes those proprietary chips for Deer/Solytech. I don't how the DSH differs from the PSH. Finally, I don't know exactly what you're asking about on the VX550 review. I sold that review sample long ago - I can't really answer too many design specific questions on it at this point.

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    Default

    Thank you for the cap info. Can I find those brands on the badcaps forum?

    I only find that DSH has an odd-shaped PCB, like you discovered on that HiPer unit. I only have a DSH but no PSH at hand, so I can't check myself the subtle difference between these two designs. If you have that TX750 review sample maybe you can tell me how the components move to a slightly different location. I'll look for some photos to discover that.

    The power resistor in white is seen on all PSH/DSH units, like HiPer 880W.
    http://www.jonnyguru.com/modules/NDR...0/Dscf0120.jpg
    As far as I see, all PSH & DSH share the same OCP daughter board design (CARD 2). You said the large power resistor simulates a load on PSU's startup. However there's a "FR17" marking on the PCB so I guess it's related to the fan control function.

    btw: on the DSR design the resistor is gone. This card is in charge of PS/ON, PG, OVP, UVP, OCP, OTP and fan control.
    http://img.pconline.com.cn/images/bb...4087699727.jpg
    (the "white box" is no longer there)
    http://diybbs.pconline.com.cn/topic.jsp?tid=7780996
    It's been a hard day's night and I've been working like a dog.

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