18340070. DELTA-SIGMA MODULATOR simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)

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DELTA-SIGMA MODULATOR

Organization Name

TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor(s)

Shotaro Wada of Nisshin-shi (JP)

Tomohiro Nezuka of Nisshin-shi (JP)

Yoshikazu Furuta of Nisshin-shi (JP)

DELTA-SIGMA MODULATOR - A simplified explanation of the abstract

This abstract first appeared for US patent application 18340070 titled 'DELTA-SIGMA MODULATOR

Simplified Explanation

The abstract describes a delta-sigma modulator that utilizes a capacitively-coupled amplifier, integrators, switches, and a control circuit to perform modulation and demodulation operations. The output signal of the amplifier is imported into the first integrator after demodulation.

  • The delta-sigma modulator includes a capacitively-coupled amplifier.
  • A first switch is used to perform chopping operation at the input of the amplifier.
  • A second switch is used to perform chopping operation at the output of the amplifier.
  • The control circuit executes modulation and demodulation operations using the switches.
  • The output signal of the amplifier is then imported into the first integrator.

Potential Applications

  • Analog-to-digital converters (ADCs)
  • Audio processing systems
  • Communication systems

Problems Solved

  • Improved signal quality by reducing noise and distortion.
  • Efficient modulation and demodulation operations.
  • Enhanced performance of delta-sigma modulators.

Benefits

  • Higher accuracy and resolution in signal processing.
  • Reduced noise and distortion in the output signal.
  • Improved overall performance of the modulator.


Original Abstract Submitted

A delta-sigma modulator includes a capacitively-coupled amplifier, a first integrator, a second integrator, a quantizer, a first switch, a second switch, and a control circuit. The first switch is connected between an input of the capacitively-coupled amplifier and a sampling capacitor of the capacitively-coupled amplifier to execute a chopping operation. The second switch is connected between an output of the capacitively-coupled amplifier and an input of the first integrator to execute a chopping operation. The control circuit executes modulation through the first switch at the input of the capacitively-coupled amplifier, executes demodulation through the second switch at the output of the capacitively-coupled amplifier, and imports an output signal of the capacitively-coupled amplifier into the first integrator after the demodulation.

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