Recent content by sekhar

  1. S

    half bridge Smps wave forms .....

    hi , smps gurus i have built a half bridge smps with pfc front end for 2 X 200W class - D . it works fine but the wave forms that i see is troubling me .... Can any one have a look and tell me if i am doing it wrong ..... the smps has a open voltage loop . wat is troubling me is primary...
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    PROBLEM WITH PFC DIODE...... kEEPS BLOWING UP

    PROBLEM WITH PFC DIODE...... kEEPS BLOWING UP I have made a pfc for the front end of my smps ........ It works great for 450W in 230V . But when ever i go down below 130V in the input the the pfc diode HFA08TB60 becomes very hot and tends to blow it self. I thought due to high current the diode...
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    300w smps need help with txfr calculation

    hi guys, i am new here i am building a 300W smps with a pfc ......... I need info on how to calculate primary , secondary turns and core size selection.....any help will be highly helpfull..... regards sekhar
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