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Bridge Rectifier
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Tekwiz
HG Contributor


Joined: 20 Oct 2008
Posts: 36
Location: Vancouver Island

PostPosted: Fri Nov 07, 2008 2:44 pm    Post subject: Reply with quote

rrold1 wrote:
It is a 12 volt battery charger but the batteries are VERY small. Imagine AA batteries wired to supply 12 volts. They charge in about an hour.

I'll try it as is and see what happens.

Thanks,

Steve

In that case, no additional heatsink should be necessary. I recommend that you check the batteries, cell by cell, as one or two shorted cells could have caused the original failure, by increasing the battery pack's current draw.
Eric
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rrold1
Semi Newbie


Joined: 31 Oct 2008
Posts: 8

PostPosted: Fri Nov 07, 2008 3:16 pm    Post subject: Reply with quote

This may be a mute point. I managed to get the new rectifier installed but something else must have fried since it did not solve the problem. At least the fuse doesn't blow now.

As it turned out, it was a good thing that I did not get the original component. It would have blocked my view of the top side pads. It can be tough to judge how much heat/solder it takes to get a good joint on both sides of a double sided board and it took more than one try.

Back to playing with my meter...

Steve
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Alan
Site Admin


Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Sat Nov 08, 2008 12:39 am    Post subject: Reply with quote

Sorry to hear that. I have been there before... I used to be a service tech and there would often be a time where the main power supply went bad and took out many other boards when it went, or the root cause of the power supply failing was due to a defective system card.

Worst thing is when a thousand dollar power supply is installed and is blown by the same issue that killed the original supply. Shocked
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