A growing number of ultrasound applications has led to increased component requirements such as those related to the probe, AFE, and power system. In the field of medical diagnostics, there are ever increasing demands for higher image quality in ultrasound imaging systems.

This paper presents a brief introduction to ultrasound imaging systems and provides a detailed analysis of some of challenges and solutions in ultrasound power management design. Four main design considerations are discussed:

  • System noise level
  • Switching noise
  • Electromagnetic interference (EMI)
  • The ultrasound thermal dissipation related to its power supply