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Recent content by tantudaisu

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    Altium 18.1.7 Output Job PDF generator

    Does anybody know why it takes so long to generate a PDF file in Altium 18.1.7 Output Job? Altium 17 worked ten times faster.
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    Altium 17.1 3D step export tables

    File -> Export -> STEP 3D -> Export Options and OutputJob -> Configuration -> Export Options has different export options tables and gives different result. I can not get pad holes exported in OutputJob. See attached picture:
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    [SOLVED] Altium 17.1 schematic to PDF print problem

    Found the problem! Uninstalled last windows10 update (4284835) https://support.microsoft.com/en-us/help/4284835/windows-10-update-kb4284835 And PDF exporter works as it has to:
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    [SOLVED] Altium 17.1 schematic to PDF print problem

    Yes, I can select/deselect, but result is the same. Some text names are exported and some are missing. I get the same result if i do a print on paper directly from schematic. It was working properly some days ago, my guess is, if some Windows10 update might influenced this???
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    [SOLVED] Altium 17.1 schematic to PDF print problem

    Has anyone faced a problem while printing schematic to pdf file a lot of text strings disappears, i.e. power port labels, pin and net label strings ect.. Some of them not printed to pdf, while in schematic file they do exist.
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    converter dc-dc from ferrit

    In case you need a negative voltage (+75,-75), i would prefer flyback topology.
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    IC for isolated power supply

    input voltage is 36-58V
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    Ethernet Surge Protector

    Hi, I need to design an Ethernet Surge Protector. I have fond one simple and cheep circuit solution on the web: https://tyconpower.com/products/files/TP-ESP-100-POE_Surge_Protector_Spec_Sheet.pdf Can anyone advise how to select varistor Z1 and Z2? Why they are different? Some diodes i.e. D1...
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    40 W FLYBACK TRANSFORMER - Which core is best to keep low the leakage inductance?

    Check this link: Fill the required windows with your parameters and press "Transformer Data" button. You will get several transformer core options for your design. - tantudaisu -
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    PoE passthrough circuit

    I need a suggestions, how to realize PoE passthrough circuit. There are two JR-45 connectors in my PCB. First is data+powerIN, secont data+powerOUT. Do I need to use both PD (powered device) and PSE (power source equipment) ICs in same circuit? Or there are any other solutions? - tantudaisu -
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    When buck boost converter is modified as flyback converter it's not working

    If output depends only on transformer turns ratio, it means there are no feedback regulations in your simulation circuit. Primary wiring current ramps up until reaches comparator's (current sense) threshold causing mosfet transistor to turn off. Then voltage on the secondary wiring goes as...
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    What is Protel PCB layout package?

    Well I think he called unrouted messy nets as "rat's nest" :) That senior engineer is a rely an old sea wolf. To do new layout with Protel is the same as to write a book with a typewriters or better with a pen, like medieval monk... - tantudaisu -
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    IC for isolated power supply

    I'm looking for a chip, not for a software. - - - Updated - - - I think UC3843B is quite popular...
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    IC for isolated power supply

    Witch ICS are most popular in commercial use SMPS? I need a DC/DC, 48V/48V (~30W) isolated power supply (flyback topology). - tantudaisu -

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