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2
votes
2answers
120 views

Multiple power supplies of different current ratings for efficiency

I've got a 30V 2A isolated DC/DC supply. I need to be capable of outputting 1A for short periods of time (3 sec, exception condition only), so with temperature derating that's what I picked. However, ...
5
votes
1answer
189 views

Practical efficiencies of available solar cells

I had a completed answer to this but when I went to post it it was closed, so : I understand that "multijunction" cells, particular those made from Copper Indium Gallium diSelenide, are the most ...
3
votes
5answers
270 views

Efficiency of a power supply

I need some info on efficiency of power supplies. Imagin a power supply with 91% efficiency that can provide a maximum of 800watts. Does the rated 91% efficeincy is for all loads that going out from ...
1
vote
1answer
107 views

How can I reduce power consumption of my device? [closed]

What are some proven and effective ways to reduce overall power consumption of a given circuit? Things like: Choose efficient, modern components; Use high-efficiency components over ...