EEVblog 1607 – PSU Switching Noise Reduction via Vibration

Physically vibrating your power supply at a sub harmonic of your PSU switching frequency can potentially lower your system noise. A practical demonstration.
AlienTek DP100: https://s.click.aliexpress.com/e/_DeWCLIN

Forum: https://www.eevblog.com/forum/blog/eevblog-1607-psu-switching-noise-reduction-via-vibration/

Linked videos:
Tesla AI PSU problem: https://www.youtube.com/watch?v=YIbQ3nudCA0
Vibration coherence: https://www.youtube.com/watch?v=uus_cpZiqsU
Vibration testing: https://www.youtube.com/watch?v=1Y2L6QLOi-c
AlienTek DP100 PSU: https://www.youtube.com/watch?v=Pd6LG7iP2GQ
Ceramic Cap Piezeoelectric effect: https://www.youtube.com/watch?v=F2gX-R1k7MM
Ceramic Capacitor Cracking: https://www.youtube.com/watch?v=QgKY5QWehME

Podcast (podcast2): Download