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VPULSE Frequency Change in Transient

ArshamA
Hi,

Could anyone suggest a method that allows to change the frequency of VPULSE voltage source during a transient simulation? (e.g. Change the PER and PW to a certain value at 160uS and then to another value at 220uS.)

I've attached the picture of the circuit in my interest.

I would appreciate any help.

Arsham
  • Use a VPWL for a limited number of transition points, or VPWL_FILE to source the transition points from a file (practically unlimited)

  • Thanks for the suggestion. It seems VPWL_FILE is the way to go, but it is next to impossible to have the high and low side synchronised so they don't short out the two MOSFETs. Do you know what I mean?

    I wish I could think of a single voltage source solution to achieve this. I need to go from 45kHz to 85kHz while measuring the current through the S-pin of the lower side MOSFET using a current sensing resistor.

    The 100GOhms resistor is going to be replaced with a tuned circuit, that's why this configuration is important. 

    Any ideas?

     

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