Subcircuit structure

15 May, 2011  2 Comments  SPICE & LTSPICE

1. Header
2. Netlist
   • Comments
   • Device Models
   • Major LTSPICE components, elementary devices
   • Major LTSPICE components, semiconductor devices
   • Major LTSPICE components, voltage and current sources
   • Major LTSPICE components, Special Functions
   • Expressions and functions in LTSPICE subcurcuits
3. End

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Distortion measurements with LTSPICE

20 Mar, 2011  23 Comments  SPICE & LTSPICE

LTSPICE is offering good capabilities for distortion analysis and simulations. All you have to do is to run transient analysis and then right click on the signal plot and use FFT command from view section of submenu. Or use .FOUR command and look for results in SPICE error LOG file from View menu. Though, you have to change a couple of default settings to be able to simulate and analyze harmonics, lower than – 60dB. Read more

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