Vencislav Valchev

5 Questions 6 Answers 0 Followers

Questions related from Vencislav Valchev

How do you manage with existing manufacturing differences and tolerances in the parameters of electronic components and materials?

A proper design (for instance with high optimization conditions: volume, losses, quality) uses accurate parameters of the electronic components and materials included. But there are serious...

08 August 2017 8,819 2 View

Could you recommend some papers dedicated to reducing the bulk capacitor values in applications of AC-DC and DC-DC converters?

Bulk capacitors are among the electronic components with lowest reliability and avoiding or reducing their values could meet the requirements regarding high reliability, as well as requirements...

04 April 2017 6,231 3 View

Could you point accurate methods for measuring losses in magnetic components and especially magnetic cores?

Often voltages in power electronics are square (not sine), thus measuring losses and splitting in core and copper losses is not simple. Could you point accurate methods (and corresponding papers)...

01 January 1970 2,280 4 View

What are advantages and disadvantages of nanocrystalline soft magnetic materials compared to ferrites in the frequency range above 500kHz?

Mainly in respect of losses and price

01 January 1970 8,494 2 View

Which are main considerations when choosing between EE and ETD ferrites cores in power electronics?

ETD (Economic Transformer Design) is preferred because of easier winding, but still EE is well spread and sold.

01 January 1970 8,343 1 View