this post was submitted on 18 Mar 2024
799 points (96.1% liked)

Technology

60090 readers
2206 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


founded 2 years ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 70 points 9 months ago (3 children)

Funny thing, most modern refrigerators use DC motors for their compressors so that they can run at variable speeds, so there's likely an inverter that you could bypass if you know the appropriate voltage. The DC ones for RVs are the same internals, just without the inverter.

[–] [email protected] 62 points 9 months ago* (last edited 9 months ago) (1 children)

Correction: they still use AC motors, but those motors don't use line AC. It goes line AC > rectifier > DC > inverter board > variable frequency AC to run the compressor motor.

Most RV fridges just use DC motors, but there are some that use VFDs and AC motors.

[–] [email protected] 1 points 9 months ago

Have we moved to BLDCs yet?

[–] [email protected] 15 points 9 months ago

Funny thing, most modern refrigerators use DC motors for their compressors so that they can run at variable speeds

No they don't...they use AC motors and a VFD to control the speed.

[–] [email protected] 7 points 9 months ago (1 children)

I mean it's probably labeled, right? How hard could it be?

[–] [email protected] 1 points 9 months ago (1 children)

Exactly. Find a hole that's black and a hole that's red, and stick some wires in there. How hard could it be?

[–] [email protected] 2 points 9 months ago

(can't answer, because she was fucking electrocuted)