The CIJ Printer needs a couple of different voltages for operation and here are the power supplies/converters that I use for generating these voltages:

- 24V Power Supply

The 24V 10A power supply is the main power supply of the printer. It generates 24V from mains for all other power supplies/converters. It also powers the solenoid valves and the audio amplifier/piezo driver.

- 12V Converter and 5V Converter

An XL4016 step-down converter powered by 24V is used for generating 12V for the plus/minus 12V converter and the high-voltage power supplies (more about them in the next build log).

Another XL4016 step-down converter powered by 24V is used for generating 5V for the Arduino and other logic-level electronics.

- Plus/Minus 12V Converter

A DD1912PA plus/minus 12V converter powered by 12V is used for generating plus/minus 12V for the charging circuit and phase detector in the future. This part of the project needs further research and at the moment it is not in use.

These are the low-voltage power supplies that I'm using at the moment.

In the next build log, I will give you a closer look at the high-voltage power supplies.