Is the efficiency of a DC DC converter Load independent? (www.meanwell.com)

submitted 2 years ago* (last edited 2 years ago) by ConductiveInsulation@feddit.de to c/askelectronics@discuss.tchncs.de

5 comments fedilink hide all child comments

I'm currently looking into various DC DC converters and was confused that the Meanwell DDR-60 series only shows a typical rating but says nothing about the efficiency at idle. From AC/DC converters I'm used to have a curve that starts at idle and maybe 70% and goes to 100% load, having the peak at ninetee something.

(Edit: link goes directly to the PDF)

you are viewing a single comment's thread
view the rest of the comments

[-] SomeoneSomewhere@lemmy.nz 2 points 2 years ago

Even on the equipment where you do get a graph of efficiency vs load, the line usually only starts at 10% load - that's where your 70% efficiency figure is for.

As noted, at 0% load efficiency is by definition 0%.

this post was submitted on 25 Jun 2023

4 points (100.0% liked)

Ask Electronics

3762 readers

1 users here now

For questions about component-level electronic circuits, tools and equipment.

Rules

1: Be nice.

2: Be on-topic (eg: Electronic, not electrical).

3: No commercial stuff, buying, selling or valuations.

4: Be safe.

founded 2 years ago

MODERATORS

DavideAndrea@discuss.tchncs.de

linker3000@discuss.tchncs.de