Tl494 Ltspice May 2026

Add this as text on your schematic for a 50 kHz push-pull converter:

.lib TL494.sub
Vcc Vcc 0 15
Rrt N005 0 10k
Cct N004 0 10n
XU1 Vcc 0 0 Vcc N004 N005 0 out1 0 out2 Vcc Vref Vcc 0 0 TL494
* Pin order: VCC, GND, DTC, FEEDBACK, CT, RT, IN1-, IN1+, IN2-, IN2+, OUT CTRL, C1, E1, C2, E2, VREF

(Note: pin order depends on your specific symbol/subcircuit – always check the .sub file’s .SUBCKT line.) tl494 ltspice

  • For control-loop tuning, run small-signal AC or use perturbation steps to inspect loop gain and phase (you may need a linearized behavioral model for accurate control analysis).

    • This guide shows how to model, simulate, and use the TL494 PWM controller in LTSpice for common switched‑mode power supply tasks. It includes a compact behavioral subcircuit, examples (buck converter, push‑pull), control‑loop tips, and troubleshooting notes so you can get realistic, useful results fast. Add this as text on your schematic for

    The TL494 has a second error amplifier—perfect for cycle-by-cycle current limiting. (Note: pin order depends on your specific symbol/subcircuit