Currents through contacts of passive elements, independent and dependent sources, bipolar, MOS and JFET transistors can be saved during dcsweep and transient simulations . During ac simulations, these currents cannot be saved except currents through voltage sources. To keep the currents through all types of devices during ac simulations, a mechanism was created which adds a voltage source in series to each device contact which has to be saved. To keep the number of additional nodes small, transient and ac simulations should be executed separately. (Disabling the ac simulation box is recommended when a transient simulation is performed. Then, the transient simulation box should be disabled and the ac simulation box enabled.)
The currents through symbols and 'other'-elements can also be saved using the additional voltage source netlisting mechanism.