| Electronics > Projects, Designs, and Technical Stuff |
| I see Two Circuits/What circuit is best? (linear bench PS and know how) |
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| bd139:
The E3620 is designed for entirely passive cooling so it works out. Agree with transformer. You can use more than one trandformer if you need to. Might be easier to do that off the shelf. If you look at some of the newer units they are exactly the same design with mosfet pass transistor and DAC control + ADC sampling. Don’t fix what ain’t broke. |
| 001:
--- Quote from: not1xor1 on November 12, 2018, 08:49:22 am --- two winding transformer with a mosfet as a switch would have been more than enough --- End quote --- Can You post some schematics? |
| rstofer:
--- Quote from: bd139 on November 12, 2018, 09:22:22 am ---The E3620 is designed for entirely passive cooling so it works out. --- End quote --- With sizable cooling fins! I decided to look on eBay and the E3620A goes for around $250. I can't build it for that! I imagine shipping would be an issue. |
| bd139:
They’re pretty expensive new. Around $800. I couldn’t build it for that with the time involved. |
| not1xor1:
--- Quote from: rstofer on November 12, 2018, 03:42:41 pm --- --- Quote from: bd139 on November 12, 2018, 09:22:22 am ---The E3620 is designed for entirely passive cooling so it works out. --- End quote --- With sizable cooling fins! I decided to look on eBay and the E3620A goes for around $250. I can't build it for that! I imagine shipping would be an issue. --- End quote --- on ebay.it (where .it means Italy) they are sold for around 100€ (HP, Agilent) now I've spotted a HP3624... they have been sold for around 130€ lately... it is quite old and huge and I think there are a lot of old capacitors to replace and probably the fan too |
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