Re: linksys WRT54G power supply problem

First, as was standard even 30 years ago, the load cannot
damage any properly designed power supply (which is not
necessary true of power supplies purchased by business school
graduates using cost controls).

Second, power supply contains everything internally that can
protect it on the power cord.

Third, plug-in protectors don't even claim to protect from
typically destructive transients. The effective protector
must earth transients before they can enter the building.
Learn from what professional locations have been doing even
before WWII. The 'whole house' protector earths destructive
transients at the service entrance because any transient
inside the building will find numerous destructive paths. For
telephone switched centers, the protector is best locate 50
meters from the transistors AND directly on the earth ground.
Earth ground - not the protector - defined protection. The
protector only connects a destructive transient to protection
- earth ground.

Your protector was only providing transients with more
destructive paths through that router.

Fourth, without more specific information - such as voltage
readings - then we don't know what happened to that power
supply. I don't even see where there is any reason to believe
the supply is sufficiently sized OR that the replacement
supply has sufficient regulation. IOW I don't even see where
a replacement supply was an exact manufacturer replacement.
There is more to power supplies than just voltage and
amperage.

The plug-in surge-protected adaptor is just as effective
when in a trash bag. They don't even claim to protect from
typically destructive transients. They simply claim
protection from a transient that does not typically exist -
and then shorts you information so that you will assume "surge
protector = surge protection". Protector and protection are
two completely different components of a surge protection
system. So manufacturer lies by telling half truths.

Define what is meant by "a power supply has died". Define
dead. Did it die, or just go into a protective mode such as
current fold back limiting?

John Blessing wrote:
> "Dan" <dan@xxxxxxxxxx> wrote in message
> news:5XNIe.26$2R4.2270@xxxxxxxxxxxxxxxxxx
>> On 8/5/2005 10:57 AM, John Blessing wrote:
>>> For the second time, the power supply for my linksys WRT54G has
>>> died. Obviously I am now thinking there is a problem with the
>>> router. Though I am willing to accept it just might be a
>>> coincidence even though it seems unlikely.
>>>
>>> Anyone else seen a similar problem with these routers?
>>
>> Maybe it is being blown by power spikes?
>
> It's on one of those surge-protected adaptors.
.

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