Notes: This is a condensed, pragmatic starting point — refine slopes, gains, and the oscillator to match TL494 datasheet values (osc frequency set by RT/CT, deadtime control range, internal reference ≈5V, EA gains, output transistor drive limits).
Output Transistors (Open Collector) Q1 8 104 9 NPN Q2 11 104 12 NPN .MODEL NPN NPN tl494 ltspice
Don't leave Pin 4 floating. For maximum duty cycle, tie it to ground. For soft-start, use an RC network. Oscillator Frequency: Remember the formula Notes: This is a condensed, pragmatic starting point
By simulating this circuit, you can gain insight into the operation of the TL494 and the behavior of a boost converter with voltage mode control. You can also experiment with different circuit parameters and component values to see how they affect the converter's performance. For soft-start, use an RC network