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Recent content by dcj50105

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    QUASI-RESONANT IC-NCP1207

    HI, HIGH EFFIIENCY AND PERFORMANCE IC
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    3-phase active pfc design

    hi friends i want to design a three-phase active PFC converter,who can give me any advice if you have corresponding experiment? thanks with best regards
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    Switch Mode Power Supply Circuit Design

    i think you should go to the website:https://www.dianyuan.com, where you may get some useful information
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    SMD Component marked with code QP ?????

    another one https://www.tkb-4u.com/code/smdcode
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    Help me design an AC/DC converter with PFC

    HELP! SOS! Hello!everyone I'm designing a AC/DC converter with PFC, because I'm fresh and absent of more practical experience, so I have to turn to everyone and hope to get your advice and suggestions. The following is the speciafication of the converter, The input voltage...
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    Looking for the software of the power supply

    Thanks a lot for your replies! I've been waiting for more replies that you can provide me , who have spreadsheet calculator to help with Inductance, Capacitance and Core construction values for forward,flyback converter,ect. Best regards!
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    Looking for the software of the power supply

    hello! everyone I'll be looking for the free software for the design of various topologies of power supply,such as flyback,forward,push-pull,...ect; I find it to use these software conveniet to calculate some parameters of transformer,so I want to get them. some software is done with the...
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    lossless snubber of forward converter

    lc snubber forward hello! everyone I really need have some data about this aspects in detail,who can provide it ? please e-mail to me as much as possible, I'll apreicate your help! Thanks everyone for your help!
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    lossless snubber of forward converter

    forward converter snubber Thanks Full Member level 4 for your replying! can you provide the pdf file you said? I appreciate it if you tell me the deails!:)
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    lossless snubber of forward converter

    lossless snubber hello! everyone who can provide a lossless snubber of the forward converter,which can snub the spike of the mosfet when the mosfet is on/off. TKS
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    the choice of input capacitor for PFC

    pfc input capacitor Hello! everyone, Is anyone available to tell me which kind of the capcitors is the best to be used for PFC's input capcitor, if possible ,please tell me the details of its manufactuer, whose capacitor is best to be certificted. TKS
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    the design for flyback transformer of PFM

    Hello! everyone The input voltage is boosted to 400V by PFCconverter, to improve the efficency of the overall syetem, I choose the variable frequency flyback mode in the DC-DCconverter, and 100kHz@full load;how can I calculate accuratly the specification of the transformer.now I want more...
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    the design for flyback transformer of PFM

    Helleo All, I want to design a PFM tranformer in the flyback converter,how can I calculate it? who can help to do it? thank you very much Best regards!

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