I'm new to the website, I found it while trying to research the problem I'm having and thought I could just ask the experts directly :)

I am a student who is trying to design a power supply circuit (DC). I've used Multisim over the past year but I'm still not completely savvy with it.

I have some criteria to meet with the question, and it was going really well until I tried to view the Oscilloscope.

Secondary output voltage needs to be 12v, the DC Output voltage should be 10v, the Peak–Peak ripple voltage must be less than 1.2v, maximum full load output current of 0.5A, Over-current protection to be active at 0.5A and regulation must be better than 10%

At first I was getting the 12V, the 10V and the <0.5A current, but suddenly something just went wrong, I didn't change anything. The DC output voltage began to climb with no signs of stopping and went way over the 10v it was sitting comfortably at.

I would post more pictures but it says I don't have enough reputation points to do so yet. But the Oscilloscope was just straight and constant at zero when the voltage was consistent at 10V, and then (when the circuit did whatever it did!) the voltage started rising on XMM2 with no signs of stopping, and the Oscilloscope showed a large waveform which got smaller and smaller as the voltage increased.

I'm no expert as you can probably tell, if anyone could tell me what I'm doing wrong or how I can fix this I would appreciate it so much.

I'm sure I've connected something incorrectly or missed something out, but I've tried adding, removing and changing everything I can think of and I can't get it working.

Thank you so much ♥

I'm new to the website, I found it while trying to research the problem I'm having and thought I could just ask the experts directly :)

I am a student who is trying to design a power supply circuit (DC). I've used Multisim over the past year but I'm still not completely savvy with it.

I have some criteria to meet with the question, and it was going really well until I tried to view the Oscilloscope.

Secondary output voltage needs to be 12v, the DC Output voltage should be 10v, the Peak–Peak ripple voltage must be less than 1.2v, maximum full load output current of 0.5A, Over-current protection to be active at 0.5A and regulation must be better than 10%

At first I was getting the 12V, the 10V and the <0.5A current, but suddenly something just went wrong, I didn't change anything. The DC output voltage began to climb with no signs of stopping and went way over the 10v it was sitting comfortably at.

I would post more pictures but it says I don't have enough reputation points to do so yet. But the Oscilloscope was just straight and constant at zero when the voltage was consistent at 10V, and then (when the circuit did whatever it did!) the voltage started rising on XMM2 with no signs of stopping, and the Oscilloscope showed a large waveform which got smaller and smaller as the voltage increased.

I'm no expert as you can probably tell, if anyone could tell me what I'm doing wrong or how I can fix this I would appreciate it so much.

I'm sure I've connected something incorrectly or missed something out, but I've tried adding, removing and changing everything I can think of and I can't get it working.