K8004 - DC To PWM Converter Kit, Control Voltage, Vref

The DCin Control Voltage or Vref and potentiometer is designed to increase the output similiar to the increased Control Voltage.

Now I have a controller module, which is “inverted”, higher R / lower Vref should increase the output.

I read about the IC SG3525, it has an “inverted input” at pin 1 (which is orig. connected to pin 9 in this pcb), and the “noninv. input” at pin 2, which seems to be used for the Control Voltage.

In my case, could it be correct to switch pin 1 (to be connected to pin 9) and pin 2 as the Control Voltage input, so a lower Control Voltage means a higher output? Or do I need more modifications?

I would love to use the control box without modifications (it’s a designed box, with a build-in on-off-switch, which I can not easily change).

Thank you in advance!

Sorry, we have no experience with this mod. Please experiment.