Search:

Type: Posts; User: maormat4

Page 1 of 2 1 2

Search: Search took 0.00 seconds.

  1. Replies
    0
    Views
    259

    Closed: OrCAD Netlist Problem

    Hello guys,

    i have a problem that i tried to solve a lot of times and i cant solve it.
    When i am tring to create a netlist at OrCAD i get a problem during execution, i dont know what the problem...
  2. Replies
    0
    Views
    262

    Closed: OrCAD Netlist Problem

    Hello guys,

    i have a problem that i tried to solve a lot of times and i cant solve it.
    When i am tring to create a netlist at OrCAD i get a problem during execution, i dont know what the problem...
  3. Replies
    6
    Views
    568

    Closed: Power supply questions

    Hello my friends,

    i have some questions (some of them are wired):
    1) What is the prefferd way to work? discontinous mode or continous mode?
    2) what is the different between voltage feedback and...
  4. Replies
    3
    Views
    257

    Closed: Learn power supplies

    Hello guys,

    Do you know a source (book, etc..) that i can learn deeply power supplies so i will know all the topologies and how to choose the topology and develop power supply from skretch to end?...
  5. Replies
    4
    Views
    584

    Closed: Coils question and mosfet's base

    Hello guys,

    I am a little bit confuse, i have two questions:
    1) Every kind of coil have a core? even smt coil? if all the coils have cores so all the coils can store energy? air coil can store...
  6. Replies
    4
    Views
    531

    Closed: Re: usb on arduino question

    Thanks man, and if i use usb 3.0 that has rx and tx i can connect it directly?
  7. Replies
    4
    Views
    531

    Closed: usb on arduino question

    HI GUYS,

    In the arduino uno schematic why i cant just plug the usb d+ and d- stright to the atmega8? why i need an additional ic for that?

    Thank you
  8. Replies
    6
    Views
    1,093

    Closed: Re: Some questions on power supply definetions

    Thanks guys.
    d123, how you can do feed foward in power supplies?
  9. Replies
    1
    Views
    826

    Closed: Question in pspice simulation time

    Hello guys,

    i have a question in pspice, why sometimes the simulation time repaet itself?

    Thank you guys
  10. Replies
    1
    Views
    423

    Closed: Transformer questions

    Hello guys,

    I have some questions about transformer in power supply.

    1)what are the energy transfer onsiderations in transformer design?
    2)what happens if i short one coil of the transformer...
  11. Replies
    6
    Views
    1,093

    Closed: Some questions on power supply definetions

    Hello guys,

    I have some questions:
    1) whats Feed Foward?
    2) Whats back emf?
    3) whats rolling energy?
    4) whats rail to rail swing?
    5) do you know a good book of advanced analog circuits? i...
  12. Replies
    5
    Views
    4,228

    Closed: Re: Allegro - colors to shapes

    I dont know, im using 16.6 p004 or 16-6-112g
  13. Replies
    5
    Views
    4,228

    Closed: Re: Allegro - colors to shapes

    No because i have the old version of 16.6 . Which version supports step function?

    Thank you
  14. Replies
    5
    Views
    4,228

    Closed: Allegro - colors to shapes

    Hello
    I am using allegro and i want to color every place bound top shape in a diffrent color in my board. How can i do that?
    And when im using 3D view and select model colors i get all the...
  15. Replies
    3
    Views
    2,855

    Closed: Diffrent colors to shapes

    Hello
    I am using allegro and i want to color every place bound top shape in a diffrent color in my board. How can i do that?
    And when im using 3D view and select model colors i get all the...
  16. Replies
    3
    Views
    789

    Closed: Re: Resistor depends on time

    sorry didnt get you
  17. Replies
    3
    Views
    789

    Closed: Resistor depends on time

    Hello guys,
    Can i make a transient simulation with resistor changes over time?

    Thank you
  18. Replies
    4
    Views
    856

    Closed: Re: Long time simulation

    I can start the simulation in any time i want by saving bias point at this time?
  19. Replies
    4
    Views
    856

    Closed: Long time simulation

    Hello,
    I am running simulation at pspice for 400ms and it takes forever.
    my circuit is big and my frequency is 200khz.
    how can i reduce the simulation time so it takes couple of minutes instead of...
  20. Replies
    2
    Views
    949

    Closed: Uc1845 spice modelll

    Hello,
    I need the UC1845 spice model

    Thank you
  21. Replies
    6
    Views
    1,172

    Closed: Re: Soldermask for vias and holes

    Thank you,
    and if the board is in development stage i need to do soldermask on vias?
    and one more question, lets say i have to do distance between pads of 14 mil, so it means that i need to do 14...
  22. Replies
    6
    Views
    1,172

    Closed: Soldermask for vias and holes

    Hi all,
    If my PCB goes to manufacture, i need to put soldrmask on vias and holse? if yes whats the width of the solermask?

    Thank you
  23. Replies
    13
    Views
    1,653

    Closed: Re: Questions about vias.

    Yes i can see, and the allegro says that all the nets and connections are connected (unrouted connections=0)
  24. Replies
    13
    Views
    1,653

    Closed: Re: Questions about vias.

    Allegro Design XL
  25. Replies
    13
    Views
    1,653

    Closed: Re: Questions about vias.

    All my connecrions are good and all is connected but im still have 106 antenna vias. the antenna vias appears when i am connecting traces from the mid layers (4 layers board) to the via, i dont know...
Results 1 to 25 of 26
Page 1 of 2 1 2