Open Loop Stability Analysis_UC1843

Arunkumar Kunjappan

Other Parts Discussed in Thread: UC1843

Hi Everyone,

I was just woundering as how to determine the open loop stability (to measure the phase margin and gain margin) of a Flyback Power Supply based on UC1843 by analysis (Either calculation or Simulation).

Thank you,

Arunkumar

over 11 years ago

0 Kening Gao over 11 years ago

TI__Expert 5900 points

Hi Arunkumar,

To calculate the open loop frequency response, you can refer to the page-7 of SLUA143.

http://www.ti.com/lit/pdf/slua143

To calculate the loop frequency response of whole system, you would to refer some fundamental materails.

Regards

Power management

Power management forum

Open Loop Stability Analysis_UC1843