| 摘要 |
A digital class-D modulator and a method and a system for a saturation protection technique thereof are provided to confine an output of at least one integrator by using a limiters in a feedback loop of an integrator. An input electric signal modulation system includes a digital class-D modulator(100), and at least one circuit. The digital class-D modulator modulates analog input signals. The circuit generates a digital output signal in proportion to the analog input signals. At least one integrator prevents a saturation using an integrator feedback loop in the digital class-D modulator. A limiter is used in at least one of a plurality of feedback loops in the digital class-D modulator. The digital class-D modulator has a fourth digital class-D modulator.
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