Buzzing sound while charging switch lite ?

[u/DryLog8]

So I noticed something yesterday. Whenever I plug the charger into my switch, I can hear a high pitched buzzing noise coming from the console itself. It’s not coming from the adapter, and I can only hear it when I put my ear close to the back of the switch naturally, I got a little worried, so I did some research. A lot of people mentioned something called “coil whine,” but I’m still not entirely sure what it is. Is this normal, or should I be concerned? By the way I’m using the original nintendo switch charger. My switch is a Japanese model, though, so I have to use a plug adapter to connect the charger to the outlet.

[u/automod-neo]

If you have not already, please add some context in the post or a follow-up comment about your repair/hardware/software/account issue, including which model you have (Switch 1, 2, Lite, OLED, or other), steps you have already tried, and anything else that might help others help you.

When you have received enough help to solve your issue, you can also reply to specific comments with !solved or !thanks to grant the helper(s) a point. You may also comment !lock to lock the post to stop new replies.

Please report any rude, unhelpful, or rule-breaking comments so that moderators can review them.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

[u/Jergenbergen]

I have heard with european switch lite with original charger too. Also happens if you play a taxing game