How much power used when device is Off.
in [Repair]
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From: D Yuniskis on 26 Dec 2009 20:50 Phil Allison wrote: > ** Absolute BOLLOCKS !! > > Small AC adaptors are built to plug into a domestic power outlet - there > are dozens of different kinds round the world. > > So a different PHYSICAL design is therefore required for each part of the > world. You've apparently little experience with the *manufacturing* side of things. Otherwise, you would realize that you can *easily* specify a different physical power plug attached to the *same* bit of electronics. Indeed, some vendors now provide wall warts with interchangeable plugs (though they *install* just one -- whichever is appropriate for your region). The external disk drives I recently purchased went this route (I suspect I could even remove the "plug" if I spent 30 seconds tugging on it). The 5V 1A wall wart that I rewired yesterday was a similar design: the PCB within mated to a specific plug style molded into the casing -- move the PCB to a different case and it is now suitable for ~220VAC operation. IIRC, certain places in England have different outlets and within the same country/region (?). It is foolishly expensive to design different adapter electronics just to accommodate different plugs/voltages (my designs have used "universal power entry" since the mid 1980's -- the choice of "plug" being left to the power cord sold with the unit!)
From: Phil Allison on 26 Dec 2009 21:11 "D Yuniskis" > Phil Allison wrote: > >> ** Absolute BOLLOCKS !! >> >> Small AC adaptors are built to plug into a domestic power outlet - >> there >> are dozens of different kinds round the world. >> >> So a different PHYSICAL design is therefore required for each part of >> the >> world. > > You've apparently little experience with the *manufacturing* > side of things. Otherwise, you would realize that you can > *easily* specify a different physical power plug attached to > the *same* bit of electronics. ** My comment above still applies. Either there is a different case and plug arrangement produced for each market or, in some cases, a plug adaptor is attached to the existing plug. To comply with safety rules in most places, such plug adaptors must be permanently attached PLUS the combined contraption be not too likely to fall out of a wall socket. > Indeed, some vendors now provide wall warts with interchangeable > plugs (though they *install* just one -- whichever is appropriate > for your region). ** Fraid that is not safety approved in most places. > The 5V 1A wall wart that I rewired yesterday was a similar design: > the PCB within mated to a specific plug style molded into the > casing -- move the PCB to a different case and it is now suitable > for ~220VAC operation. ** Backs up my point - a different PHYSICAL design is needed for each market. It is not possible to produce one design of "wall wart" adaptor and sell it world wide - which was the point at issue. ...... Phil
From: D Yuniskis on 26 Dec 2009 21:48 Phil Allison wrote: > "D Yuniskis" >> Phil Allison wrote: >> >>> ** Absolute BOLLOCKS !! >>> >>> Small AC adaptors are built to plug into a domestic power outlet - >>> there >>> are dozens of different kinds round the world. >>> >>> So a different PHYSICAL design is therefore required for each part of >>> the world. >> You've apparently little experience with the *manufacturing* >> side of things. Otherwise, you would realize that you can >> *easily* specify a different physical power plug attached to >> the *same* bit of electronics. > > ** My comment above still applies. > > Either there is a different case and plug arrangement produced for each > market or, in some cases, a plug adaptor is attached to the existing plug. Yeah, and I am sure they sell pink ones and blue ones too! But that doesn't affect the DESIGN OF THE ELECTRONICS within (I suspect the *color* of the device does little to affect the power consumed! :> ) > To comply with safety rules in most places, such plug adaptors must be > permanently attached PLUS the combined contraption be not too likely to > fall out of a wall socket. This is apparently not the case in the US. :> >> Indeed, some vendors now provide wall warts with interchangeable >> plugs (though they *install* just one -- whichever is appropriate >> for your region). > > ** Fraid that is not safety approved in most places. Well, I have only designed products for 7 or 8 markets so I won't claim to be an expert here. I can talk with friends servicing european markets (lots of countries in a small geographical region) to see how their experiences have fared... >> The 5V 1A wall wart that I rewired yesterday was a similar design: >> the PCB within mated to a specific plug style molded into the >> casing -- move the PCB to a different case and it is now suitable >> for ~220VAC operation. > > ** Backs up my point - a different PHYSICAL design is needed for each > market. That won't affect the power consumption, heat radiated, etc. any more than the color would. The internal design of many of these units is the same. Certainly anything *I* have designed in the past 25 years. And, as William pointed out, I suspect that is becoming increasingly the case. It costs money to maintain different designs. To do the actual engineering. To stock the parts. To fabricate the product. To service it. Etc. Far cheaper to come up with *a* design and just slip the guts into a "locale specific" shell. > It is not possible to produce one design of "wall wart" adaptor and sell it > world wide - which was the point at issue.
From: D Yuniskis on 27 Dec 2009 00:04 Phil Allison wrote: > "D Yuniskis" >> Phil Allison wrote: >>> "D Yuniskis" >>>> Phil Allison wrote: >>>> >>>>> ** Absolute BOLLOCKS !! >>>>> >>>>> Small AC adaptors are built to plug into a domestic power outlet - >>>>> there are dozens of different kinds round the world. >>>>> >>>>> So a different PHYSICAL design is therefore required for each part of >>>>> the world. >>>> You've apparently little experience with the *manufacturing* >>>> side of things. Otherwise, you would realize that you can >>>> *easily* specify a different physical power plug attached to >>>> the *same* bit of electronics. >>> ** My comment above still applies. >>> >>> Either there is a different case and plug arrangement produced for each >>> market or, in some cases, a plug adaptor is attached to the existing >>> plug. >> Yeah, and I am sure they sell pink ones and blue ones too! >> But that doesn't affect the DESIGN OF THE ELECTRONICS within > > ** Simply not relevent to the my point at all. > > That is NOT an example of : > > " .. only one supply is required, regardless of where the product is sold. > " > >>> To comply with safety rules in most places, such plug adaptors must be >>> permanently attached PLUS the combined contraption be not too likely to >>> fall out of a wall socket. >> This is apparently not the case in the US. > > ** Bullshit. Go to a Costco -- or any other place that sells a Seagate "FreeAgent | Desk" UPC code 7 63649 01223 9, part number 9ZB2B8-571 (i.e., this is a real part, I am holding two of them in my hands right now) The part number for the wall wart is WA-24E12. It is manufactured by "Asian Power Devices, Inc." The wall wart is listed as "100 - 240VAC 50 - 60 Hz" with a "12V 3A" output. The "plug" clearly is a separate piece that slides onto the body of the wall wart. Not only is it NOT "permanently attached" but it has a "button" clearly labeled "PUSH" which, when pushed, allows the "plug" to be slid off of the wall wart. The force required to actuate this button is just a bit over 4 ounces (i.e., something an *infant* could manage). Just to be sure we are all in agreement on what "permanently attached" means, my Webster's New World defines "permanent" to mean "lasting or intended to last indefinitely or for a relatively long time" -- something that I can alter within *seconds* of opening the box and holding it in my hands I doubt would qualify as "indefinitely"; nor even "a relatively long time" (unless measured against the half-life of some of the elements having atomic numbers in excess of 100!) Likewise, the best definition I can find for "attach" would be "to fasten by tying, etc.". So, I guess "sliding onto" the wall wart would be consistent with "attachment". I guess we just have vastly different ideas of what "permanent" means! There should be enough INDEPENDANTLY VERIFIABLE information in my post (unlike your random, unsubstantiated rants) for others to verify this and decide who speaks truly. :> Or, perhaps Seagate is selling these things despite YOUR apparent prohibition on their use/sale? (sigh) Yet another USENET wacko. Welcome to my killfile! Isn't it time for your meds? Maybe *past* time?? ;-) (OK, now you can go and rant some more. I -- and anyone else who has been smart enough to add you to their killfile already -- won't be bothered with your meaningless posts.)
From: Michael A. Terrell on 27 Dec 2009 00:43
D Yuniskis wrote: > > Go to a Costco -- or any other place that sells a Seagate > "FreeAgent | Desk" UPC code 7 63649 01223 9, part number > 9ZB2B8-571 (i.e., this is a real part, I am holding two > of them in my hands right now) > > The part number for the wall wart is WA-24E12. It is > manufactured by "Asian Power Devices, Inc." > > The wall wart is listed as "100 - 240VAC 50 - 60 Hz" > with a "12V 3A" output. The "plug" clearly is a separate > piece that slides onto the body of the wall wart. Not only > is it NOT "permanently attached" but it has a "button" > clearly labeled "PUSH" which, when pushed, allows the > "plug" to be slid off of the wall wart. The force required > to actuate this button is just a bit over 4 ounces > (i.e., something an *infant* could manage). > > Just to be sure we are all in agreement on what "permanently > attached" means, my Webster's New World defines "permanent" > to mean "lasting or intended to last indefinitely or for a > relatively long time" -- something that I can alter within > *seconds* of opening the box and holding it in my hands > I doubt would qualify as "indefinitely"; nor even "a > relatively long time" (unless measured against the half-life > of some of the elements having atomic numbers in excess of 100!) > > Likewise, the best definition I can find for "attach" would be > "to fasten by tying, etc.". So, I guess "sliding onto" the > wall wart would be consistent with "attachment". I guess we just > have vastly different ideas of what "permanent" means! > > There should be enough INDEPENDANTLY VERIFIABLE information > in my post (unlike your random, unsubstantiated rants) > for others to verify this and decide who speaks truly. :> > > Or, perhaps Seagate is selling these things despite YOUR > apparent prohibition on their use/sale? > > (sigh) Yet another USENET wacko. Welcome to my killfile! > Isn't it time for your meds? Maybe *past* time?? ;-) > > (OK, now you can go and rant some more. I -- and anyone > else who has been smart enough to add you to their killfile > already -- won't be bothered with your meaningless posts.) Phil is mentally ill and lives 'down under' so you are wasting your time, which could be better spent teaching pigs to sing... -- Greed is the root of all eBay. |