Board

PCBA v1.4 released

A new PCBA version, version 1.4 has been released and documented on the website. This is the version we recommend to make. It includes 2 output current settings, a pad to connect the ground plane to earth ground for increased safety, and general routing improvements. We have also released a new 3D-printed protection enclosure for […]

Assembly of the HV components – PCB v1.2/V1.3

Note: this page concerns an older version of the board. Refer to Assembly of the HV components for instructions for the most recent board revision. Once the low-voltage part of the board is working as expected, it is time to assemble the high voltage side of the board. EMI shielding of the DC/DC converter The […]

Assembly of the low-voltage through-hole components – PCB v1.2/1.3

Note: this page concerns an older version of the board. For assembly instruction for the latest board revision, refer to Assembly of the low-voltage through-hole components Take your soldering iron, as it’s time to solder a few components. We will now solder the low-voltage through-hole components. Solder switch S1 and set it to the 0 […]

Assembly of the SMD/SMT components – PCB v1.2/1.3

These are the instructions for an older version of the PCBA. For the most up-to-date assembly information, refer to Assembly of the SMD/SMT components Once you have your board it’s time to start the assembly. We will proceed in several steps, with testing at the end of each step to make sure the circuit is […]

Testing the high voltage components and potting

Testing the high voltage components Now that all components are soldered on the board, we will check that everything is functional. There is an automated script that checks the hvps-x can generate a high voltage, that the voltage reading circuit can monitor the voltage, and that the optocoupler output stage works. The script apply a […]

Assembly of the HV components

This page describes the assembly of the high-voltage components for the most recent revision of the PCBA. For the previous version (1.2/1.3), refer to this page. Once the low-voltage part of the board is working as expected, it is time to assemble the high voltage side of the board. EMI shielding of the DC/DC converter […]

Testing the low voltage components

Let’s check that things are working correctly before we solder the costly high-voltage components. With a multimeter, measure the input resistance of the +13.5V input; between GND and +13.5V (the bottom leg of switch S1), and make sure there is no short-circuits. The resistance will depend on the multimeter used and will likely be drifting, […]

Assembly of the low-voltage through-hole components

This page describes the assembly of the low-voltage through-hole components for the latest revision of the board. Refer to this page for information on previous revisions. Take your soldering iron, as it’s time to solder a few components. We will now solder the low-voltage through-hole components. Solder switch S1 and set it to the 0 […]

Testing communication with the micro-controller

Although not absolutely necessary, we recommend testing the communication with the micro-controller once you have finished the first assembly step (soldering the SMT/SMD components). This enables you to confirm that the USB connector and the micro-controller are correctly soldered before continuing with the assembly. Indeed you wouldn’t want to spend time and money soldering new […]

Assembly of the SMD/SMT components

This pages describes the assembly procedure of PCBA v1.4. This is the latest version of the PCBA. For assembly of PCBA version 1.2 and 1.3, refer to this page Once you have your board it’s time to start the assembly. We will proceed in several steps, with testing at the end of each step to make […]

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