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Forum Index : Electronics : high voltage rectifier

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irishron40
Senior Member

Joined: 22/09/2014
Location: Ireland
Posts: 251
Posted: 12:06pm 25 Oct 2015
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Hi. I just wonder can high voltage (600volt) GBU406 rectifier be used for a low voltage circuit say upto 30 volt.

thx
 
Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5078
Posted: 12:30pm 25 Oct 2015
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Yes. Results may vary.

High voltage rectifiers are more expensive, and generally have a higher voltage drop across the junction(s). A high voltage diode from a microwave oven wont even test properly unless you can feed a hundred odd volts through it, I used a megga meter to test those diodes when I fixed microwaves back in the 90's.

Ideally, you use a diode with a voltage closer to your circuit voltage. Less voltage drop and better current handling.

Glenn
The best time to plant a tree was twenty years ago, the second best time is right now.
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irishron40
Senior Member

Joined: 22/09/2014
Location: Ireland
Posts: 251
Posted: 01:52pm 25 Oct 2015
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ok thx glenn. i came across a couple of different ones, and just wondered could i use them for small projects.

thx

ron
 
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