Integrated overcurrent protection system for class-D audio power amplifiers

  title={Integrated overcurrent protection system for class-D audio power amplifiers},
  author={Marco Berkhout},
  journal={IEEE Journal of Solid-State Circuits},
A fully integrated overcurrent protection system is presented suitable for application in integrated class-D audio power amplifiers. Accurate overcurrent detection is used based on parallel measurement of the voltage drop across the DMOS power transistors. A logic circuit enables continuous current limiting during overload situations. Actual short circuits can be distinguished from load impedance minima using a simple short-circuit discrimination method. 
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