SLUAAG8 October   2022 TPS56C231

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2Time Domain Correlation
    1. 2.1 Load Transient Correlation Structure
    2. 2.2 Example Based on TPS56C231
      1. 2.2.1 How to Save Bench Scope Waveform to CSV File
      2. 2.2.2 How to Save Simplis Simulation to CSV File
      3. 2.2.3 How to Save Cadence Simulation Waveform to CSV File
      4. 2.2.4 Correlation Data
  5. 3Frequency Domain Correlation
    1. 3.1 Frequency Response Bode Plot Correlation Structure
    2. 3.2 Example Based on TPS56C231
      1. 3.2.1 How to Save Bench Bode Plot to CSV File
      2. 3.2.2 How to Save Simplis Bode Plot Simulation to CSV File
      3. 3.2.3 Correlation Data
  6. 4Summary
  7. 5References

3.1 Frequency Response Bode Plot Correlation Structure

Bode plot is a graph of the frequency response of a system. It is usually a combination of the magnitude (in dB) and phase of the transfer function versus frequency, phase margin and crossover frequency can be directly obtained. Bode plot measurements are essential for system stability and transient response optimization.

Bode plot can not only be tested on bench with a network analyzer or a specific loop gain measurement instrument, but also be simulated in Simplis. Bench network analyzer bode plot and simulation bode plot can be saved into CSV file in each environment. After that, all the CSV data can be put into one CSV file so as to plot bench and simulation results in one chart for correlation analysis.

The frequency response bode plot correlation structure is described in Figure 3-1.

Figure 3-1 Frequency Response Bode Plot Correlation Structure