SLVAEH8A May   2020  – June 2021 TPS63000 , TPS63010 , TPS63020 , TPS63024 , TPS630250 , TPS63027 , TPS63030 , TPS63036 , TPS63050 , TPS63060 , TPS63070 , TPS63802 , TPS63805 , TPS63806 , TPS63810 , TPS63811

 

  1.   Trademarks
  2. 1 Introduction
  3. 2 Summary Table
  4. 3 Fundamentals of Switching Regulators
  5. 4 Design Support
  6. 5 PCB Layout and Thermal Considerations
  7. 6 EMI Considerations
  8. 7 Device-Specific Technical Discussions
  9. 8 Measurement Techniques
  10. 9 Buck-Boost Converter Applications
  11. 10Revision History

8 Measurement Techniques

This section presents an overview of techniques to perform accurate measurements of the performance of buck-boost converters.

Accurately Measuring Efficiency of Ultralow-IQ Devices: SLYT558

Performing Accurate PFM Mode Efficiency Measurements:SLVA236

There are important considerations when measuring the efficiency of a low-IQ device when operating in PFM mode. These reports review the basics of measuring efficiency, discuss common mistakes in measuring the light-load efficiency of ultralow-IQ devices, and demonstrate how to overcome them in order to get accurate efficiency measurements.

How to Measure the Loop Transfer Function of Power Supplies: SNVA364

This application report shows how to measure the critical points of a bode plot with a signal generator and an oscilloscope. The method is explained in an easy to follow step-by-step manner so that a power supply designer can start performing these measurements in a short amount of time.

Simplifying Stability Checks:SLVA381

This application report explains a method for verifying relative stability of a circuit by showing the relationship between phase margin in an AC loop response and ringing in a load-step response. This allows for a simple stability check without the need to perform loop gain measurements.

Techniques for Accurate PSRR Measurements:SLYT547

Although PSRR measurement of a converter is simple in concept, the setup is of great significance in achieving an accurate result. This article explores commonly encountered setup issues that limit PSRR measurement and offers a method to overcome them using high-fidelity signal injectors and a highly sensitive/selective vector network analyzer.