Eco design directive for offline SMPS

[cupoftea]

Hi,
The EU Eco design directove, means our 300W, 24V offline PSU must have efficiency of 0.88, and standby power of <0.21W.

Does this mean at all output power levels above 49W, it must be >88% efficient.
Also, the standby power of 0.21W, will surely mean all PSUs must incorporate a micro and a pilot power supply such as LNKZERO...and literally switch out the main PSU when in standby.
I doubt most offthe shelf PSU's conform to this....so are they now banned?

 

[Easy peasy]

the efficiency is weighted, and calc from several points - you really need to read the assoc info with this standard

 

[cupoftea]

The 0.21W standby means that there will absolutley need to be a very low power "Pilot" flyback at the front end.....switching out the PFC when in standby, so its bias current doesnt result in too much standby power.
The main converter will need burst mode.........then if there is a sudden standby to full load transient....well thats interesting...the PFC stage has been powered down for standby power purposes....and now the load has just gone zero watts to 400 Watts in 1us.....hmmmm......

...or are we not going to power down the PFC...then we will be ready for the load transients.....but then we have PFC and Main PWM smps with their residual losses....and all this has to be <0.21W.......right.

...and the 1MEG in the line so that user doesnt get shocked when just unplugged...all of a sudden that looks like too much.

What about the OV/UV resistors that typically go down to the controlelrs to sense the line etc.....and all <0.21W total.

 

[cupoftea]

Please does anyone know which actual standard encapsulates the ECO-Design Directive?
Is it the EN62368?

 

[cupoftea]

Hi, Which one of the following EU safety/electrical standards, encompasses the "ECO-design directive?"


60335-2-23 (used in conjunction with 60335-1)
Note: IEC 60335-1 is our overarching regulation for household electrical products.
62233
EN IEC 63000
IEC61558-2-16 (used in conjunction with IEC61558-1)
ErP EN 50563
IEC/UL/EN/CSA/AS/NZS 62368-1 (and IEC local deviations)
Note: As you know, there is also a conflict between
IEC 60335-1 and IEC 62368-1. Specifically, IEC 62368-1 allows for single-fault protection,
whereas IEC 60335-1 requires two levels of fault protection. (we require to EN 60335-1)

EN 61000-6-3
EN 61000-6-1
EN 55032
EN 55014-1
EN 55014-2
EN 61000-3-2
EN 61000-3-3
EN 55024
47 CFR Part 15
GB 17625.1
GB 4943.1
GB/T 9254
K 60950-1
KN32
KN35
EN 55035