Transisent Analysis, DC Sweep, AC Sweep?

[bouncetherabbit]

ac sweep

Hi, I have tired to find online what these terms mean. Alot of infomation of these can be found, but no defination was avaliable. Anyone can help?

Thanks!

 

[ytliang]

ads ac sweep frequency response

Transient Analysis has "time" as its indepedent axis (x-axis).
DC Sweep has whatever you want to sweep as the independent axis.
AC Sweep has "frequency" as the x-axis, showing the frequency response of your output.

 

[LvW]

transisent

Transient analysis: Computation of voltages and currents of a circuit as a function of time t - starting at t=0 (including all transients) - based on an arbitrary input value (voltage or current) and on certain starting conditions (bias point).

DC analysis: Computation of voltages and currents as a function of (a) a variable dc voltage, or (b) a variable dc current, or (c) a variable parts value (example: resistor), or (d) a variable parameter (example: current gain of a transistor)

ac analysis: Computation of voltages and currents within a circuit as a function of a voltage or current with constant amplitude but with variable frequency within a specified range - based on certain starting conditions (bias point).
This analysis corresponds to the classical small signal ac analysis very often used by handheld calculations (example: Xc=1/ωC)

Added later: I doubt if "handheld calculations" is the correct wording; probably is "calculation with pencil and paper" much more better. However, engineers have a lot of fantasy and will understand it, don´t they ?

 

[ashish_chauhan]

ac analysis sweep variable

Yup!! they do!!

 

[raymar2k]

thank you both! that was very helpful!