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公开(公告)号：US20160226508A1
公开(公告)日：2016-08-04
申请号：US14991978
申请日：2016-01-10
发明人： Kazuaki KUROOKA , Yoshihiro FUNATO
CPC分类号： H03M1/485 , H03M1/0872 , H03M1/645
摘要： In a semiconductor device, a sine wave signal is input to a first input part and a cosine wave signal is input to a second input part. A multiplexer alternately selects one of the sine wave signal and the cosine wave signal. An analog to digital converter converts the output signal of the multiplexer into a digital value. A switching circuit is coupled between at least one of the first and second input parts and the multiplexer. The switching circuit is configured to be able to invert the input sine wave signal or the input cosine wave signal, in order to reduce the angle detection error due to the non-linearity error of the A/D converter.
摘要翻译： 在半导体装置中，将正弦波信号输入到第一输入部，将余弦波信号输入到第二输入部。 多路复用器交替地选择正弦波信号和余弦波信号之一。 模数转换器将多路复用器的输出信号转换为数字值。 开关电路耦合在第一和第二输入部分中的至少一个和多路复用器之间。 开关电路被配置为能够反转输入正弦波信号或输入余弦波信号，以便减小由于A / D转换器的非线性误差引起的角度检测误差。
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12.发明申请SIGNAL PROCESSING CIRCUIT, RESOLVER DIGITAL CONVERTER, AND MULTIPATH NESTED MIRROR AMPLIFIER 有权信号处理电路，分辨率数字转换器和多路径镜像放大器公开(公告)号：US20150357980A1
公开(公告)日：2015-12-10
申请号：US14827519
申请日：2015-08-17
CPC分类号： H03F3/2171 , H03F3/005 , H03F3/393 , H03F3/45179 , H03F3/45192 , H03F3/45762 , H03F3/45946 , H03F2200/264 , H03F2200/271 , H03F2200/375 , H03F2200/408 , H03F2200/411 , H03F2200/81 , H03F2203/45012 , H03F2203/45028 , H03F2203/45116 , H03F2203/45136 , H03F2203/45138 , H03F2203/45174 , H03F2203/45212 , H03F2203/45512 , H03F2203/45528 , H03F2203/45558 , H03F2203/45594 , H03F2203/45601 , H03F2203/45604 , H03F2203/45631 , H03F2203/45632 , H03F2203/45634 , H03F2203/45641 , H03F2203/45681 , H03F2203/45698 , H03F2203/45726
摘要： A signal processing circuit includes a chopper amplifier that has a differential amplifier circuit that amplifies differential input signals Vsp(t) and Vsm(t), and an adder circuit that generates an addition signal Vfil(t) by addition of the chopper output signal Vsub(t) that the chopper amplifier generates. Differential signals inputted into the differential amplifier circuit are interchanged for every first phase period and second phase period, and the adder circuit generates the addition signal by addition of the chopper output signal in the first phase period and in the second phase period.
摘要翻译： 信号处理电路包括具有放大差分输入信号Vsp（t）和Vsm（t）的差分放大器电路的斩波放大器，以及通过将斩波器输出信号Vsub相加产生相加信号Vfil（t）的加法电路 （t）斩波放大器产生。 输入到差分放大器电路的差分信号每第一相位周期和第二相位周期互换，并且加法器电路通过在第一相位周期和第二相位周期中相加斩波器输出信号来生成相加信号。
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13.发明申请SIGNAL PROCESSING CIRCUIT, RESOLVER DIGITAL CONVERTER, AND MULTIPATH NESTED MIRROR AMPLIFIER 有权信号处理电路，分辨率数字转换器和多路径镜像放大器公开(公告)号：US20140340145A1
公开(公告)日：2014-11-20
申请号：US14254294
申请日：2014-04-16
CPC分类号： H03F3/2171 , H03F3/005 , H03F3/393 , H03F3/45179 , H03F3/45192 , H03F3/45762 , H03F3/45946 , H03F2200/264 , H03F2200/271 , H03F2200/375 , H03F2200/408 , H03F2200/411 , H03F2200/81 , H03F2203/45012 , H03F2203/45028 , H03F2203/45116 , H03F2203/45136 , H03F2203/45138 , H03F2203/45174 , H03F2203/45212 , H03F2203/45512 , H03F2203/45528 , H03F2203/45558 , H03F2203/45594 , H03F2203/45601 , H03F2203/45604 , H03F2203/45631 , H03F2203/45632 , H03F2203/45634 , H03F2203/45641 , H03F2203/45681 , H03F2203/45698 , H03F2203/45726
摘要： A signal processing circuit includes a chopper amplifier that has a differential amplifier circuit that amplifies differential input signals Vsp(t) and Vsm(t), and an adder circuit that generates an addition signal Vfil(t) by addition of the chopper output signal Vsub(t) that the chopper amplifier generates. Differential signals inputted into the differential amplifier circuit are interchanged for every first phase period and second phase period, and the adder circuit generates the addition signal by addition of the chopper output signal in the first phase period and in the second phase period.
摘要翻译： 信号处理电路包括具有放大差分输入信号Vsp（t）和Vsm（t）的差分放大器电路的斩波放大器，以及通过将斩波器输出信号Vsub相加产生相加信号Vfil（t）的加法电路 （t）斩波放大器产生。 输入到差分放大器电路的差分信号每第一相位周期和第二相位周期互换，并且加法器电路通过在第一相位周期和第二相位周期中相加斩波输出信号来生成相加信号。
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