Simetrix/simplis

Rapidly finds the steady-state operating point of a switching system without needing to simulate the entire startup transient.

Unlike general-purpose SPICE simulators (LTspice, PSpice, Cadence), SIMetrix/SIMPLIS is a hybrid simulator built specifically to solve the "speed vs. accuracy" paradox in switched-mode power supplies (SMPS). It offers two engines under one hood: simetrix/simplis

: It can find the steady-state operating point of a switching circuit in seconds, eliminating the need to wait for long "startup" transients. Key Features and Industry Use Cases Rapidly finds the steady-state operating point of a

| Feature | SIMetrix/SIMPLIS | LTspice | PSpice | Keysight ADS | | :--- | :--- | :--- | :--- | :--- | | | Excellent (POP) | Poor | Poor | Good (HB) | | Loop Gain (switching) | Direct | Requires averaged model | Requires averaged model | Direct (HB) | | General Analog Accuracy | Good | Excellent | Very Good | Excellent | | Model Availability | Power-focused | Broad (ADI/Linear) | Broad | RF/System | | Price | High (Commercial) | Free | Medium-High | Very High | It offers two engines under one hood: :

SPICE is straightforward: define a .TRAN, run, look at waves. SIMPLIS requires understanding: