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    • 7. 发明授权
    • Class-D amplifier and multi-level output signal generated method thereof
    • D类放大器及其多电平输出信号产生方法
    • US07675361B2
    • 2010-03-09
    • US12025055
    • 2008-02-04
    • Lee-Chun GuoMing-Hsun Sung
    • Lee-Chun GuoMing-Hsun Sung
    • H03F3/217
    • H03F3/217
    • A class-D amplifier and a method of generating a multi-level output signal thereof are provided. The class-D amplifier includes a controlling logic circuit and an output module. The controlling logic circuit analyzes the amplitude of an input signal to generate a voltage modifying signal. A power supply provides a voltage according to the voltage modifying signal. The controlling logic circuit generates controlling signals according to the input signal. The output module generates an output signal to drive a load according to the voltage and the controlling signals. In other words, the resolution of the amplitude of the output signal is increased by modifying the voltage, and a signal to noise ratio is then increased.
    • 提供了D类放大器和一种产生其多电平输出信号的方法。 D类放大器包括控制逻辑电路和输出模块。 控制逻辑电路分析输入信号的幅度以产生电压修正信号。 电源根据电压修正信号提供电压。 控制逻辑电路根据输入信号产生控制信号。 输出模块根据电压和控制信号产生输出信号来驱动负载。 换句话说,通过修改电压来增加输出信号幅度的分辨率,然后增加信噪比。
    • 9. 发明申请
    • CLASS-D AMPLIFIER AND MULTI-LEVEL OUTPUT SIGNAL GENERATED METHOD THEREOF
    • CLASS-D放大器和多级输出信号生成方法
    • US20090146737A1
    • 2009-06-11
    • US12025055
    • 2008-02-04
    • Lee-Chun GuoMing-Hsun Sung
    • Lee-Chun GuoMing-Hsun Sung
    • H03F3/217
    • H03F3/217
    • A class-D amplifier and a method of generating a multi-level output signal thereof are provided. The class-D amplifier includes a controlling logic circuit and an output module. The controlling logic circuit analyzes the amplitude of an input signal to generate a voltage modifying signal. A power supply provides a voltage according to the voltage modifying signal. The controlling logic circuit generates controlling signals according to the input signal. The output module generates an output signal to drive a load according to the voltage and the controlling signals. In other words, the resolution of the amplitude of the output signal is increased by modifying the voltage, and a signal to noise ratio is then increased.
    • 提供了D类放大器和一种产生其多电平输出信号的方法。 D类放大器包括控制逻辑电路和输出模块。 控制逻辑电路分析输入信号的幅度以产生电压修正信号。 电源根据电压修正信号提供电压。 控制逻辑电路根据输入信号产生控制信号。 输出模块根据电压和控制信号产生输出信号来驱动负载。 换句话说,通过修改电压来增加输出信号幅度的分辨率,然后增加信噪比。