Hardware

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 […]

3D-printed Protection Enclosure.

This page describes the assembly of the hvps-x PCB in a 3D-printed enclosure for added protection and safety. For additional safety and protection, we recommend placing the PCB inside a box/enclosure. You can find STL files for a 3D printed box on the download page. The box has two parts: a bottom (image above, left) […]

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 […]

Calibrate the high voltage power supply

This page describes how to calibrate the high voltage power supply. Proper calibration of the hvps-x provides an output error lower than 10V. Why calibration? The hvps-x reads the output voltage at two locations: at the output of the high voltage DC-DC converter and at the output of the terminal of the power supply. Internally, […]

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 […]

Scroll to top