In "Application Report. SLVA001E–December 2003–Revised September 2011" , figure 35, and in several other documents with TL494 applications the reference input to pin 2 is divided by 2. What is the reason to do so ?. As I understand this reduces the loopgain by 50% plus it requires an additional resistor, so where is the advantage?
I would appreciate an explanation since in my apllication I have fed the full 5Volt reference into pin 2 and the circuit works reasonable well, although the switching frequency and duty cycle are not stable in all conditions between minimum and maximum load (battery charger).
