Belkin 12v 1A switching router PSU adaptor

[bp1]

Hi

I have 2 Belkins F5D8320 routers. One of them i no has a faulty PSU brick adaptor. I have proven this by trying the PSU brick adaptor from the good one and the faulty router comes back to life and works great.

Now i need some additional education in understanding the PSU types.

Normally in the past when ever a PSU brick has gone faulty on a non Belkin routers eg Linksys wrt54g or Netgear, i have just got a normal 12v 1A generic oem PSU brick adaptor (To basically match the voltage, Load, and correct polarity) and this has always worked satisfactorly.

The Belkin however will not work on any of the generic PSU brick adaptors. When i say don't work i mean no lights or activity on the router. When i try the good Belkin PSU brick adaptor on my other routers of the same voltage, load, and polarity they don't seem to power up the other routers.

I assume that this is because the Belkin router PSU must be switched (As stated on its Brick PSU adaptor) and the Linksys and Netgear non switching.

The only diiference within the PSU brick adaptor markings is that the Belkin adaptors state "switching".

I would be grateful if someone could educate me a little on switching and non switching 12V 1A power brick adaptors.

All comments would be gratefully appreciated.

Many Thanks
bp1

[mur]

Re: Belkin 12v 1A switching router PSU adaptor

On switching adaptors, the voltage is usually regulated. That means output voltage is close to 12v no matter if you put 1A of load on it or leave it unloaded. Linear (non switching) are usually unregulated. That means the voltage of unloaded 12v linear adaptor will be higher than 12v (I mostly see 17-18v) and will fall down to 12v when loaded. Another thing to watch for on different adaptors (this applies for switching and linear) is polarity on the output connector.

You can also tell an adaptor is switching or linear just by looking and weighing them. Switching ones are usually smaller and lighter. Linear ones are bigger and heavier, because of the big transformer they have inside.

I think it would work for belkin router if you find a switching 12V 1A adapter with same polarity on the connector.

[bp1]

Re: Belkin 12v 1A switching router PSU adaptor

On switching adaptors, the voltage is usually regulated. That means output voltage is close to 12v no matter if you put 1A of load on it or leave it unloaded. Linear (non switching) are usually unregulated. That means the voltage of unloaded 12v linear adaptor will be higher than 12v (I mostly see 17-18v) and will fall down to 12v when loaded. Another thing to watch for on different adaptors (this applies for switching and linear) is polarity on the output connector.

You can also tell an adaptor is switching or linear just by looking and weighing them. Switching ones are usually smaller and lighter. Linear ones are bigger and heavier, because of the big transformer they have inside.

I think it would work for belkin router if you find a switching 12V 1A adapter with same polarity on the connector.

Thanks for that reply mur which was very easy to understand.

I spoke to Belkin who told me that there was a life time warranty and have despatched me a free replacement. They didn't want the faulty one back.
When i get the replacement i will try to open the faulty psu to see if i can find whats gone wrong when i get some spare time.

Many Thanks
bp1

[momaka]

Re: Belkin 12v 1A switching router PSU adaptor

When i get the replacement i will try to open the faulty psu to see if i can find whats gone wrong when i get some spare time.

When you do, post some pictures here. I repaired a 5v switching power adapter from a D-Link router not too long ago, and it turned out a real easy fix. Hopefully, yours will be too.

[retiredcaps]

Re: Belkin 12v 1A switching router PSU adaptor

I would be grateful if someone could educate me a little on switching and non switching 12V 1A power brick adaptors.

I found this 10 minute youtube video a couple of months ago and it explains it in very good detail with pictures, and diagrams. "AC Power Adapter Engineering and Repair"

http://www.youtube.com/user/wa2kwl#p/u/1/yCtaZ2TSExA

This one is interesting too from the same person

http://www.youtube.com/user/wa2kwl#p/u/2/ykq4GJMgpf8

[bp1]

Re: Belkin 12v 1A switching router PSU adaptor

Thanks for them quality posts above.
I am just waiting for the replacement before i crack open the faulty psu. When i have the replacement i will provide some photo's.
The youtube videos have been great.

Kind Regards
bp1