发明名称 |
SYSTEM AND METHOD FOR RIPPLE-FREE AC POWER DETERMINATION |
摘要 |
A power metering circuit includes a current input path for receiving an analog current input at a first analog to digital converter; a voltage input path for receiving an analog voltage input at a second analog to digital converter; a multiplier configured to multiply an output of the current input path and the voltage input path; a notch filter configured to receive an output of the multiplier, the notch filter having a stop band based on a line frequency; and a control circuit for setting a sampling frequency of the first analog to digital converter and the second analog to digital converter to a multiple of the line frequency. |
申请公布号 |
WO2016154192(A1) |
申请公布日期 |
2016.09.29 |
申请号 |
WO2016US23561 |
申请日期 |
2016.03.22 |
申请人 |
MICROCHIP TECHNOLOGY INCORPORATED |
发明人 |
QUIQUEMPOIX, Vincent;BRUMANN, Michael |
分类号 |
G01R21/133;G01R21/06 |
主分类号 |
G01R21/133 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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