发明名称 |
High-resolution and low-resolution sensors for phase detection |
摘要 |
A phase detection system includes a low-resolution sensor and a high-resolution sensor for monitoring an alternating current (AC) voltage. A phase detector receives voltage samples from both the low-resolution sensor and the high-resolution sensor. The phase detector monitors the low-resolution sensor to detect approaching zero cross events (i.e., monitored voltage values approaching zero). In response to an approaching zero-cross event, the phase detector uses the magnitude of the high-resolution voltage samples measured on either side of the zero cross event to determine the phase of the monitored AC voltage. |
申请公布号 |
US8643318(B2) |
申请公布日期 |
2014.02.04 |
申请号 |
US201113092617 |
申请日期 |
2011.04.22 |
申请人 |
FATTAL SOUREN G.;SAGONA JOHN DUWARD;HAMILTON SUNDSTRAND CORPORATION |
发明人 |
FATTAL SOUREN G.;SAGONA JOHN DUWARD |
分类号 |
G05B11/28 |
主分类号 |
G05B11/28 |
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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