Making a DC Power Supply with Audible Benefits: Choosing the Design

Following the two articles exploring multiple power supply circuits with potential for high-end audio applications (audioXpress December 2021 and January 2022), Frans de Wit details a high-quality power supply especially targeted toward preamplifiers, record-players, and other low power appliances.

- Frans de Wit

About the Author

Frans de Wit was born and raised in the Netherlands. He went to high school to become an electrical engineer, and found his first job in electronics retail, selling components over the counter and advising customers on component selection and application. Here he was spotted by a headhunter and invited to work for the Dutch importer for Motorola, Texas Instruments, Hewlett Packard, and many other great brands of the time. There he started his career as a Desk-Sales Engineer. During this time, he helped customers building trains, organs, milk-floats, and particle accelerators (yes, the one at CERN) among other things. Next, he co-founded an IT company and until 2016 he worked as a programmer and algorithms specialist building operating systems, compilers, and a large DAM system. In 2016 he achieved a long-time ambition and founded an audio research and development company named Signature Origin.

Big goals, such as building a "molten salt nuclear reactor" or a "space craft capable of light speed" are not my ultimate calling, for me it is building the ultimate "high-end audio system." 

In previous articles that I wrote for audioXpress (December 2020 and January 2021 publications), I talked about voltage regulation and the accompanied circuitry needed. Now, I would like to take it a step further and discuss building a high-quality power supply especially targeted toward high-quality audio circuits, such as preamplifiers, record-players, and other low-power appliances.

The Design