+ Post New Thread
Results 1 to 5 of 5
  1. #1
    Member level 3
    Points: 1,071, Level: 7

    Join Date
    Apr 2014
    Posts
    60
    Helped
    1 / 1
    Points
    1,071
    Level
    7

    Current path for switching circuit

    Hi,

    I would like to know if there is any simulation program that allows me to know the current path through any circuit? Let's say to debug the circuit, to know what really happens during the simulation step by step.

    Thanks.

    •   AltAdvertisment

        
       

  2. #2
    Super Moderator
    Points: 251,556, Level: 100
    Awards:
    1st Helpful Member

    Join Date
    Jan 2008
    Location
    Bochum, Germany
    Posts
    43,804
    Helped
    13320 / 13320
    Points
    251,556
    Level
    100

    Re: Current path for switching circuit

    What's a "current path through a circuit" for you? Circuit currents are splitted into different pathes in one node and combined in another one. Kirchhoffs current law rules.

    The usual way is to record multiple (many) branch currents in a transient simulation.



    •   AltAdvertisment

        
       

  3. #3
    Member level 3
    Points: 1,071, Level: 7

    Join Date
    Apr 2014
    Posts
    60
    Helped
    1 / 1
    Points
    1,071
    Level
    7

    Re: Current path for switching circuit

    A program that does something like this: http://falstad.com/circuit/



    •   AltAdvertisment

        
       

  4. #4
    Member level 3
    Points: 1,071, Level: 7

    Join Date
    Apr 2014
    Posts
    60
    Helped
    1 / 1
    Points
    1,071
    Level
    7

    Re: Current path for switching circuit

    I used this application to simulate this circuit show below:
    http://www.falstad.com/circuit/circu...12.8+0+-1+0%0A

    But I just cannot understand why it doesn't work for mode 4 as shown in the article: http://ieeexplore.ieee.org.sci-hub.cc/document/5437192/

    The current path through the S1 switch diode doesn't appear to me.



  5. #5
    Super Moderator
    Points: 50,445, Level: 54

    Join Date
    Apr 2011
    Location
    Minneapolis, Minnesota, USA
    Posts
    12,407
    Helped
    2464 / 2464
    Points
    50,445
    Level
    54

    Re: Current path for switching circuit

    I'm watching your schematic run in Falstad's. I guess S1 is the lefthand switch? As far as I can tell, it creates boost converter action.

    Here are some tips:

    The leftmost diode is unnecessary.

    I recommend that you add several scope traces. Look at Ampere waveforms through inductor, switch, righthand diode.

    Put 1k ohm resistors across diodes. This reduces false unwanted oscillations at each closing of the switch.

    Put 0.1 ohm resistors inline with the capacitors. This reduces instantaneous high current spikes.

    For your component values I recommend a timestep of 50n. This makes the waveforms more readable. The simulation pauses less. Do not use the default setting of 5u.



--[[ ]]--