I was trying to make the point that a diy project should have the same design goals as a commerical product.
For a resonant supply the light load or no load is critical,some controllers go into skip cycle (onsemi NCP1395 & NCP1396) to protect components. Some supplies react different to a varying load as this changes the output impedance and then you have the classd amp which is a special case.Myself I use the same techniques that bench tech's use after they repair supplies,varying input ,loads and then burnin and retest and then ice test,heat test another burnin then an amp with rated wattage 20Hz,1kHz,and half fsw to see if compensation holds and then another sweep with network analyzer and scope for emi under loads and then if that goes well check notes and results for documentation.I am currently in the design and simulation phase of a LLC halfbridge converter which will use the NCP controller along with a PFC that onsemi has.
For a resonant supply the light load or no load is critical,some controllers go into skip cycle (onsemi NCP1395 & NCP1396) to protect components. Some supplies react different to a varying load as this changes the output impedance and then you have the classd amp which is a special case.Myself I use the same techniques that bench tech's use after they repair supplies,varying input ,loads and then burnin and retest and then ice test,heat test another burnin then an amp with rated wattage 20Hz,1kHz,and half fsw to see if compensation holds and then another sweep with network analyzer and scope for emi under loads and then if that goes well check notes and results for documentation.I am currently in the design and simulation phase of a LLC halfbridge converter which will use the NCP controller along with a PFC that onsemi has.