Transformers for Texas Instruments 400W Push-Pull Power Supplies

TIDA-01352 Reference Design for Programmable Ultrasound Power Supplies

Characteristics

  • High efficiency
  • Low leakage inductance
  • 110W output
  • Low profile
  • Basic insulation
  • Isolation voltage: Up to 1875VAC at 1 second
  • Lead free and RoHS compliant
  • Designed to meet IEC60601-1
  • Operating temp: -40°C to 125°C

Applications

  • High-power push-pull power supplies
  • Ultrasound scanners
  • Sonar imaging equipment
  • Nondestructive evaluation equipment
Electrical Properties - Push-Pull Transformers
Order Code UI (VDC) UO1 (V) IO1 (A) L (µH) NP:NS fSWITCH (kHz) UT (VAC) L (mm) W (mm) H (mm)
750343547 24 110 1 100 1 : 7.5 100-400 1875 27.94 29.21 21.59
750343548 24 55 2 100 1 : 3 100-400 1875 27.94 29.21 21.59
Electrical Properties - Current Sense Transformer
Order Code LTYP (mH) Turns Ratio IR (A) RDC (Ω) UT (VAC) L (mm) W (mm) H (mm)
750340744 2 1 : 100 10 5.87 625 7.37 8.13 5.46

Reference Design Characteristics

High-efficiency (89% at full load with 24V input)

Push-pull topology enables scalability for lower or higher power (channel counts)

Modular design allows same supply to be duplicated or removed depending on number of levels for pulser

Capable of switching frequency synchronization with ultrasound master or system clock frequency

Other Wurth Electronic Part Numbers on App Note

860080778023: WCAP-ATLI, Aluminum Electrolytic Capacitor