Whereas an efficiency level of 94% used to be seen as state-of-the-art, PULS has succeeded in breaking through this barrier to achieve over 95.5%, coming one step closer to the ultimate ideal of 100%.
This performance increase has been achieved with the partial replacement of traditional silicon with the new wide-bandgap material, silicon carbide (SiC), combined with a sophisticated LLC converter topology. All switching and thermal parameters are calculated, then simulated and optimised in multiple variants – in many cases using software tools developed in-house. Even though each improvement takes the design forward just one small step, it all adds up to a significant result.
All of this exciting technology is integrated into our current record holder:
Use highly accurate measuring instruments, a wattmeter or better still, a power analyser.
Tip 1 of 5 – Measuring instruments
Make sure the cabling is correct and that you are measuring the correct voltage.
Tip 2 of 5 – Cabling
For AC, if possible use an electronic AC source.
Tip 3 of 5 – AC source
Avoid EMC interference from the device under test.
Tip 4 of 5 – EMC
Pay attention to influences of temperature and time.
Tip 5 of 5 – Temperature and time
PULS is an expert in efficiency measurement and a founding member of the European Power Supply Manufacturers’ Association (EPSMA). As a result of this cooperation the EPSMA published a very interesting White Paper on efficiency measurement.
PULS really wants to share its know-how with you. So you can download the full version of the EPSMA White Paper and Bernhard Erdl's presentation here:
Contact PULS and talk to our technical experts.