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发明授权
CN109388168B 光学传感器装置以及电压调节器装置 有权

光学传感器装置以及电压调节器装置
摘要：
本发明公开了一种搭载高频电源噪声抑制能力的电压调节器装置和光学传感器装置，该电压调节器装置包含具有运算放大器的低压差线性调节器以及噪声抑制电路，运算放大器被电源所供电，低压差线性调节器用来接收以及调节输入电压信号以提供输出电压信号给负载，噪声抑制电路用来对于电源的电源信号的高频成分提供电源噪声抑制能力来产生具有较少高频噪声的电源信号至运算放大器，能够提供宽带的电源噪声抑制能力，例如可以对于从1KHz到1GHz的频率范围提供较佳的噪声抑制能力。
摘要（英）：

A voltage regulator apparatus with a rejection capability for high frequency power noise includes a low dropout linear regulator and a noise rejection circuit. The low dropout linear regulator has at least one operational amplifier which is powered by a power source, and the low dropout linear regulator is configured for receiving and regulating an input voltage signal to provide an output voltage signal for a load. The noise rejection circuit is coupled between the power source and the low dropout linear regulator, and is configured for providing a power noise rejection capability upon a high frequency part of a power signal of the power source to generate the power signal with less high frequency noise to the at least one operational amplifier.

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