Search:

Type: Posts; User: ashiekh

Page 1 of 20 1 2 3 4

Search: Search took 0.01 seconds.

  1. I am for always on (but temperature responsive)...

    I am for always on (but temperature responsive) as kicking in can be more annoying than humming along quietly.
  2. Why don't the bridge rectifiers straddle their...

    Why don't the bridge rectifiers straddle their heatsink?
  3. Replies
    36
    Views
    23,229

    Windows 10 version 1909 is trying to change that...

    Windows 10 version 1909 is trying to change that trend
  4. Replies
    1
    Views
    107

    Having a spare power supply around is always...

    Having a spare power supply around is always useful, if only for diagnostics.
  5. Replies
    10
    Views
    310

    Rest assured that the Guru knows, and that I am...

    Rest assured that the Guru knows, and that I am just behind the times.
  6. Replies
    10
    Views
    310

    I would have said the secondary capacitors and...

    I would have said the secondary capacitors and fan, and left out the switching transistors; but that is just me. I tend to rebuild old supplies with top grade secondary capacitors and oil the fan to...
  7. Replies
    10
    Views
    310

    It might even be argue that the switching for LLC...

    It might even be argue that the switching for LLC is much gentler on the transistors than for older designs.

    Take for example a traditional household switch, it will in general switch randomly on...
  8. Good to know; I think I'll just leave the bust...

    Good to know; I think I'll just leave the bust video cards be.
  9. Max transient temperature for an electrolytic capacitor

    Many electrolytic capacitors can operate at 105C, but some people reflow a whole board which means taking it up to around 230C; how safe is this for the capacitors?

    I have a whole lot of video...
  10. Replies
    12
    Views
    229

    As I understand it, leakage current for a new (or...

    As I understand it, leakage current for a new (or long unused) electrolytic starts off large as the dielectric reforms, then reduces.

    But it is good to have it confirmed that one does not need to...
  11. Replies
    12
    Views
    229

    That is why I put the word ground in "Now for...

    That is why I put the word ground in

    "Now for medical grade power supplies leakage to ground is an issue."

    do I know what I am taking about? I thinketh not.
  12. Replies
    12
    Views
    229

    One adds a bleed resistor across the primary...

    One adds a bleed resistor across the primary capacitor for safety, i.e. one has greatly increased the leakage current intentionally; so I would argue that in the context of a power supply leakage...
  13. Replies
    12
    Views
    229

    Have you ever read a power supply review that was...

    Have you ever read a power supply review that was concerned about leakage current in the capacitors? if not, then since they don't worry, maybe you don't need to.

    Says he nervously in anticipation...
  14. Replies
    12
    Views
    229

    The capacitors I replace are for smoothing, not...

    The capacitors I replace are for smoothing, not precision; I assumed the original poster was referring to such large electrolytics.

    After capacity, voltage, temperature rating and physical size I...
  15. Replies
    12
    Views
    229

    When I replace secondary capacitors it is one...

    When I replace secondary capacitors it is one thing that I don't worry about.
  16. Replies
    2
    Views
    120

    Fascinating, I learned something new; hadn't...

    Fascinating, I learned something new; hadn't thought of the resonating issue.
  17. Replies
    2
    Views
    120

    Are all fans 'gradual'

    I recall a cooling fan decades ago that had speed modes, and the jump up in speed and back down I found very distracting. I assume all power supply fans these days are now run on a gradual curve?
    ...
  18. Replies
    3
    Views
    143

    'equally good' because it has 'better...

    'equally good' because it has 'better performance'

    seems to me a bit of a contradiction
  19. Replies
    6
    Views
    264

    Silicone oil might help reduce contact resistance.

    Silicone oil might help reduce contact resistance.
  20. Replies
    9
    Views
    394

    I think conflicting advice is normal when the...

    I think conflicting advice is normal when the requirements are not well defined

    You want

    * reliable
    * silent
    * efficient
    ?

    the list goes on; each may lead to a different recommendation.
  21. Thread: dc-dc psu

    by ashiekh
    Replies
    11
    Views
    347

    I used to live in Trieste, Italy and Slovenia was...

    I used to live in Trieste, Italy and Slovenia was one of my favorite places to visit for the mountains and caves.
  22. Thread: dc-dc psu

    by ashiekh
    Replies
    11
    Views
    347

    Why so complicated? mains to 12V to ATX and only...

    Why so complicated? mains to 12V to ATX and only 60W on the 12V line.

    A PC based router might take 50W which will cost a lot in electricity, so a stand alone unit might save money.
  23. Replies
    8
    Views
    428

    You pull the plug when it is in sleep mode?

    You pull the plug when it is in sleep mode?
  24. I assume you are talking about "-The_Mask-" ...

    I assume you are talking about "-The_Mask-"

    Don't we all hide behind some image or name?
  25. Thread: Gigabyte psu

    by ashiekh
    Replies
    22
    Views
    851

    Would you run a quality engine on cheap fuel?

    Would you run a quality engine on cheap fuel?
Results 1 to 25 of 500
Page 1 of 20 1 2 3 4