Stability testing is important because loop bandwidth and stability affect how fast the circuit will respond to source voltage transients and load changes. Power factor correction circuits often have two feedback loops. Both loops can have stability problems, so they need to both be tested for stability. This application note describes how to test the feedback loops in power factor correction (PFC) chips for stability. In this application note, you will learn:
- Measurement Techniques
- Stability Guidelines
- Loop bandwidth Considerations
- Procedures for Testing Both Loops
