~~META: 
 date created  = 2023-05-29
&date modified = 2023-05-29
~~
====== USB Power Supply Housing 🇬🇧 ======
\date //2023-05-29//

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I use one of these "type HW-536" USB power supply modules on my electronics workbench. The supply is tapped of from my lab power supply's unregulated secondary\_(*). Since I feared short circuits and other damage running it on the bench unprotected, I designed this little two-part enclosure in Solid Edge.

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You can find it on my Printables account [[https://www.printables.com/@VolkerMueller|@VolkerMueller]], including the SolidEdge files.

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(* The module does NOT allow for up to 36\_or 40\_V supply voltage, as often claimed. The A5268 step-down controllers go into overvoltage protection at around 31\_V, which is also stated in their datasheet. I had to use four diodes in series to drop the supply voltage sufficiently ... the diodes fit in the enclosure as well 😎 Also, I would not trust this thing running the specified 2*15\_W continuously. I tried it with 2*5\_W, that was all right.)

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{{tag>diy 3ddruck en}}