The GitHub hardware section of this project is recently updated with various changes. The Arduino shield (digital control) board is now shorter for 25 mm because a new type of connectors are used for remote sensing and load temperature sensors. Also an external digital trigger input is added that will offer more flexibility in controlling the PSU from the outside.
A new SMPS pre-regulator based on already presented LTC3864 controller is also now available (BOM is still missing). Since it allows 100% duty cycle mode of operation, small correction is added on existing post-regulator board that contains digital control of the channel power section.
Finally a complete new revision 5 is added in PRELIMINARY folder where you can find the following designs:
- Redesigned Arduino shield that can be now installed on 2U front panel since the TFT display is rotated from portrait to landscape
- New power board that include previously used post-regulator and new SMPS pre-regulator. Connection between this board and new Arduino shield is accomplished with the single 26-pin 0.1” connector.
- Redesigned AUX PS board has fan control, USB and Ethernet socket and
- Mechanical drawing for new enclosure such as Galaxy Maggiorato GX283 or Galaxy Maggiorato GX288 (or any other with inner width of 210 mm).
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