transient parameters Ltspice

Discussion in 'General Electronics Chat' started by vead, Oct 3, 2016.

  1. vead

    Thread Starter Active Member

    Nov 24, 2011
    621
    8
    Hello
    I need help to set parameters for transient simulation. I made RC circuit with DC supply with Ltspice. I want to see the waveforms for RC circuit. Can someone tell me what value I need to use to see waveform?
    treansient _RC.png
     
  2. AlbertHall

    Well-Known Member

    Jun 4, 2014
    1,958
    387
    Stop time = 10
    Time to start saving data = 0
    Tick Start external DC sources at 0V
     
    vead likes this.
  3. vead

    Thread Starter Active Member

    Nov 24, 2011
    621
    8
    I have doubt on waveform, this is case when capacitor charge. I don't see waveform when capacitor discharge? What's wrong?
    treansient _RC.jpg
     
  4. dl324

    Distinguished Member

    Mar 30, 2015
    3,250
    626
    Where is the path for the capacitor to discharge?
     
  5. AlbertHall

    Well-Known Member

    Jun 4, 2014
    1,958
    387
    Your circuit is a 5VDC source and the resistor and capacitor. In this circuit there is nothing to discharge the capacitor.
    Change the stop time to 20 secs. Right click the voltage source, click advanced and set like this:
    upload_2016-10-3_14-34-6.png
     
  6. vead

    Thread Starter Active Member

    Nov 24, 2011
    621
    8
    Hello
    There is resistor, capacitor and voltage source in circuit.
    RC different.jpg
    From the simulation it is found that voltage across capacitor is exponentials increased or decrease. It is found that voltage is exponentials increase for first circuit while decrease exponential for second circuit. Does Charging or discharging of capacitor depand on connection?
     
  7. crutschow

    Expert

    Mar 14, 2008
    13,033
    3,241
    How could it not? :confused:
     
  8. ci139

    Member

    Jul 11, 2016
    341
    38
    . . . how you connect your ;)metero_O`"
     
Loading...