PMP23061 Reference Design

Texas Instruments

Pre-regulated isolated driver bias supply reference design for traction-inverter applications

Description

This pre-regulated isolated open-loop LLC transformer driver converter reference design provides four 18-V outputs up to a total of 6 W for traction-inverter applications. The LLC topology allows the transformer to have significant leakage inductance: but a much smaller primary-secondary capacitance: which significantly reduces common-mode current injection through the bias transformer. The boost pre-regulator is designed to provide 7.5 W to the LLC converter: which can support a maximum of 6-W output.

Features
  • Small open-loop solution size drives four outputsBoost stage provides regulated input to LLCCompact PCB size (83 mm x 81 mm)
Applications
  • Traction inverter-high voltage
Product Categories
  • Power management