That’s fine for DC current through resistors ... and just work with magnitudes. For simple circuits, this can work, but for something complex (no pun intended), it gets hairy fast.

Complex-Block Characterization Common complex blocks ... and the video ADC from seven hours to 25 minutes. DC/DC converters are another class of circuits which requires long transient simulations with ...

Simulating a dc-dc converter in LTspice to model closed-loop voltage feedback. LTspice can be utilized to perform statistical tolerance analysis for complex circuits. To show the efficacy of the ...

LTspice can be utilized to perform statistical tolerance analysis for complex circuits. To show the efficacy of the method, this article presents a voltage regulation example circuit modeled in ...