can you describe it more,please? now I reduce primary turns to 5.As previously mentioned, I was under the impression, that the windings ratio should be rather reduced, respectively the number
of primary turns increased
It's not a primarly a problem of asking the right questions. The problems can be identified by measurements. It's e.g. possible to seecan you ask me about of what you want to know about my smps,please?
As the above calculation shows (DCM) for getting 70 watt power at input stage .I thought about more primary turns, not less.
do you mean soft switching? I see in many smps with 3844 that there is no special circuit for avoiding losses from simultaneous current and voltage. but in some circuit there is one extra diode and resistor at gate path for adjusting the mosfet on and off time.possible to see
the MOSFET losses from simultaneous current and voltage measurements and determine in which phase of switch cycle they are
generated
possible to see the MOSFET losses from simultaneous current and voltage measurements and determine in which phase of switch cycle they are
generated
Regarding transformer dimensionining, I understand that Np=10 was the original design and achieved up to 1000 V (loaded) output,
I referred to your post of 07.04., where you reported this value. The schematic tells Np=9 in contrast.can you tell me that how do you get Np=10 ?
I don't know. How did you choose the air gap til now? I also didn't understand, if the L values given in your previous posts havewhat is the value of Lp with Np=10?
I also didn't understand, if the L values given in your previous posts have
been measured or are only design target values
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