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Overcurrent detection circuit for integrated class-D amplifiers

Cadete, F ; Guilherme, D ; Guilherme, J ; Horta, N

2011 20th European Conference on Circuit Theory and Design (ECCTD), August 2011, pp.401-404

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  • Título:
    Overcurrent detection circuit for integrated class-D amplifiers
  • Autor: Cadete, F ; Guilherme, D ; Guilherme, J ; Horta, N
  • Assuntos: Modulation ; Delay ; Multiplexing ; Transistors ; Threshold Current ; Threshold Voltage ; Clocks ; Engineering
  • É parte de: 2011 20th European Conference on Circuit Theory and Design (ECCTD), August 2011, pp.401-404
  • Descrição: This paper presents a new architecture for a overcurrent detection system, dedicated to fully integrated class-D audio amplifiers, that uses half the comparators than conventional architectures. A detailed implementation for a 1-W bridge-tied load (BTL) class-D amplifier, on a 0.18 μm CMOS technology is presented, showing a reduction of 28.8% in current consumption and 23.5% in silicon area, when compared to its equivalent conventional architecture.
  • Idioma: Inglês

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