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The controller board is mounted to the top face of the Flatpack2 using adhesive PCB supports.įinished controller in action, with a Nextion 3.5″ (enhanced) touchscreen GUI.Ĥ8V (nominal) 2000W PSU and controller ready to integrate into a future 23cm LDMOS Power Amplifier project. The Flatpack2 48/ 3000 HE is installed in vast numbers all over the globe and has an unmatched proven field performance. Mains, CAN-bus to controller, and power to controller. Key Features: high efficiency (up to 96.5 ) even at low load, proven reliability (MTBF 2. Solder mask was scraped away, creating two solder pads, for the connector.Ībove: 4-pin polarised 0.1″ pitch connector (with middle two pins removed) has been soldered to the interface PCB.Ībove: Interface PCB connectivity. ELTEK's 241115.105 flatpack2 48 V/2000 W high efficiency (HE) rectifier. To power the controller board, two 0.9mm holes were drilled so that a suitable connector could be mounted to the PCB. CAN-bus adapter is upside down to access connectors.Ĭonnecting the Flatpack2 to the outside world is by way of an adapter PCB purchased on eBay. Incidentally, it would have cost more to purchase the individual parts required to replicate a Nano and CAN-bus adapter.Ībove: Mounting arrangement. Eltek Flatpack2 48/2000 He Rectifier Module 241115.105, Find Complete Details about Eltek Flatpack2 48/2000 He Rectifier Module 241115.105,Eltek Rectifier Module,Flatpack2 48/2000 He,241115.
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There is little point re-inventing the wheel, so instead of replicating the circuitry of an Nano and CAN-bus adapter, cheap and readily available modules simply insert into the controller “main board”. I’m a bit over green solder mask, so blue it was! That raised a red flag, so I then researched suitable DC down converter chips that had a genuine high voltage input tolerance.Įnter the Maxim MAX5035, a “1A 76V High efficiency step-down DC-DC converter”, available in an SOIC8 package and with a fixed 5V output voltage variant.įrom the datasheet application notes a power supply was designed, and a suitable PCB layout was created that also accommodated the connectivity for the Arduino Nano and the CAN bus adapter all on the one 10 x 5cm PCB.Ī batch of PCBs arrived weeks ago, so it was time to assemble a board and get it running. So I started looking for an LM2596HVS IC from a reputable supplier, like RS Components. Note: Changes have been made since that video was shot, notably a more robust power supply, and many improvements to the GUI.Ĭheap 60V to 5V LM2596HVS based step down converters found on eBay out of China are terrible, and the LM2596HVS IC are most likely inferior ‘fakes’.