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发明公开
CN102098056A 三角积分调变器及脉宽调变追踪量化器 有权

三角积分调变器及脉宽调变追踪量化器
摘要：
本发明的三角积分调变器的量化器包含脉宽调变器、转换器及位准追踪器。脉宽调变器接收一输入信号，且根据一或多个锯齿波及至少一参考电压对该输入信号进行脉宽调变，以产生一脉宽调变信号。转换器连接该脉宽调变器的输出，将该脉宽调变信号数字化，产生输出数字值。位准追踪器连接该转换器的输出，接收该输出数字值，以产生一参考电压调整值并传输至该脉冲调变器，以调整该参考电压，从而改变该锯齿波的下一次对应电压位准，以追踪该输入信号。
摘要（英）：

The invention discloses a quantizer of a trigonometric integral modulator, which comprises a pulse width modulator, a converter and a level tracker. The pulse width modulator receives an input signal, and performs pulse width modulation on the input signal according to one or more saw tooth waves and at least one reference voltage to generate a pulse width modulation signal. The converter is connected with the output of the pulse width modulator, and digitalizes the pulse width modulation signal to generate an output digital value. The level tracker is connected with the output of the converter, receives the output digital value to generate a reference voltage adjusting value and transmits the reference voltage adjusting value to the pulse width modulator to adjust the reference voltage so as to change the next corresponding voltage level of the saw tooth wave to track the input signal.

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