# Regenerator Cleaning Function on Switching Power Supplies? **URL:** \ **Category:** Power Components\ **Created:** [October 24, 2020, 1:01pm UTC](https://forum.psaudio.com/t/regenerator-cleaning-function-on-switching-power-supplies/19741 "2020-10-24T13:01:42Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![mr-ryan-eickmeyer](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/mr-ryan-eickmeyer/32/37770_2.png) [@mr-ryan-eickmeyer](https://forum.psaudio.com/u/mr-ryan-eickmeyer)\ **Post date:** [October 24, 2020, 1:01pm UTC](https://forum.psaudio.com/t/regenerator-cleaning-function-on-switching-power-supplies/19741/1 "2020-10-24T13:01:43Z")
Is the cleaning function on the regenerators ok for both linear and switching power supplies. This function seems to work great on all of my linear power supplies i connect to it…but, when i connect a switching power supply the switching transformer brick makes an auditable sound during the cleaning process…just made me nervous. Anyone else have this issue? ---
**Author:** ![Paul](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/paul/32/6_2.png) [@Paul](https://forum.psaudio.com/u/Paul)\ **Post date:** [October 24, 2020, 1:17pm UTC](https://forum.psaudio.com/t/regenerator-cleaning-function-on-switching-power-supplies/19741/2 "2020-10-24T13:17:31Z")
No worries. The hum isn’t going to hurt anything. ---
**Author:** ![mr-ryan-eickmeyer](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/mr-ryan-eickmeyer/32/37770_2.png) [@mr-ryan-eickmeyer](https://forum.psaudio.com/u/mr-ryan-eickmeyer)\ **Post date:** [October 24, 2020, 1:19pm UTC](https://forum.psaudio.com/t/regenerator-cleaning-function-on-switching-power-supplies/19741/3 "2020-10-24T13:19:27Z")
All i wanted to hear, thanks Paul ---
**Author:** ![Elk](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/elk/32/1240_2.png) [@Elk](https://forum.psaudio.com/u/Elk)\ **Post date:** [October 24, 2020, 1:20pm UTC](https://forum.psaudio.com/t/regenerator-cleaning-function-on-switching-power-supplies/19741/4 "2020-10-24T13:20:09Z")
I have also had components hum with clean wave. After years of Power Plant use everything is fine. ---
**Author:** ![Serhan](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/serhan/32/192329_2.png) [@Serhan](https://forum.psaudio.com/u/Serhan)\ **Post date:** [October 24, 2020, 1:58pm UTC](https://forum.psaudio.com/t/regenerator-cleaning-function-on-switching-power-supplies/19741/5 "2020-10-24T13:58:46Z")
Does anybody remember George Cardas’ stylus cleaning and system degaussing LP? I still have it and does wonders on my turntable and phono stage! ---
**Author:** ![John\_H](https://avatars.discourse-cdn.com/v4/letter/j/d6d6ee/32.png) [@John\_H](https://forum.psaudio.com/u/John_H)\ **Post date:** [October 25, 2020, 10:37am UTC](https://forum.psaudio.com/t/regenerator-cleaning-function-on-switching-power-supplies/19741/6 "2020-10-25T10:37:15Z")
Not sure it’s entirely safe. Twice, the clean function “fried” the auxiliary (smaller) SMPS supplying power to the on/off relay switch in my Jeff Rowland Design group’s 725 mono block amp, rendering the amp inoperative. I would avoid using the clean function for any SMPS devices which emit either a loud groan or a raspy scream. In my amplifiers, I heard the latter - a loud, staccato tearing noise synchronized to the duration of the Cleanpower countdown. ---
**Author:** ![Elk](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/elk/32/1240_2.png) [@Elk](https://forum.psaudio.com/u/Elk)\ **Post date:** [October 25, 2020, 1:02pm UTC](https://forum.psaudio.com/t/regenerator-cleaning-function-on-switching-power-supplies/19741/7 "2020-10-25T13:02:31Z")
Do you have any details as to why this SMPS was unhappy with clean wave? ---
**Author:** ![John\_H](https://avatars.discourse-cdn.com/v4/letter/j/d6d6ee/32.png) [@John\_H](https://forum.psaudio.com/u/John_H)\ **Post date:** [October 26, 2020, 6:47am UTC](https://forum.psaudio.com/t/regenerator-cleaning-function-on-switching-power-supplies/19741/8 "2020-10-26T06:47:55Z")
As to why this might have happened, I think that SMPS devices anticipate and leverage the consistency and predictability of a 50/60Hz sine wave to draw power with regularity; the injection (and decay) of multiple high frequency overtones in the AC line may wreak unexpected havoc and stress the hardware to a point where a component simply bites the dust. ---
**Author:** ![Serhan](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/serhan/32/192329_2.png) [@Serhan](https://forum.psaudio.com/u/Serhan)\ **Post date:** [October 26, 2020, 7:27am UTC](https://forum.psaudio.com/t/regenerator-cleaning-function-on-switching-power-supplies/19741/9 "2020-10-26T07:27:17Z")
My P15 is still boxed. I will install and connect next day or so. My setup includes two SMPS and three LPS. I will stick to my 30 year old Cardas sweep record and other degaussing frequency CDs 😄 ---
**Author:** ![Elk](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/elk/32/1240_2.png) [@Elk](https://forum.psaudio.com/u/Elk)\ **Post date:** [October 26, 2020, 1:47pm UTC](https://forum.psaudio.com/t/regenerator-cleaning-function-on-switching-power-supplies/19741/10 "2020-10-26T13:47:22Z")
A good hypothesis. An SMPS would then also be stressed by THD in the incoming power. Clean wave would be merely an extreme example.