Power transfer units

Products and reference designs

Power transfer units

Block diagram


Our integrated circuits and reference designs for power transfer units (PTUs) help you design systems such as static transfer switches (STS), automatic switchgears, AC-power distribution units (PDUs) and automatic transfer switches (ATS) with increased reliability and accuracy.

Design requirements

Modern power transfer unit designs often require:

  • Accurate sensing of high voltages and high currents with or without isolation.
  • Improved fault monitoring and protection.
  • Protected SCR gate driver designs and electromechanical relay controls.
  • Efficient auxiliary power supply designs for control electronics and gate drivers.

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Block diagram

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