发明名称 |
Control of Delivery of Current Through One or More Discharge Lamps |
摘要 |
Method to identify a current drawn by a fluorescent lamp in a circuit. Methods include receiving a voltage supplied to a fluorescent lamp drawing a current in response to the voltage, digitally sampling the voltage at a sampling frequency and associating a first time stamp with a voltage value representing one of a maximum or minimum value in observed voltage, receiving the current after receiving the voltage, digitally sampling the current at the sampling frequency and associating multiple second time stamps with a corresponding multiple current values, identifying a second time stamp, a difference between the first time stamp and the second time stamp being within a threshold, and identifying a current value associated with the second time stamp as the current drawn by the fluorescent lamp.
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申请公布号 |
US2012123713(A1) |
申请公布日期 |
2012.05.17 |
申请号 |
US201213355452 |
申请日期 |
2012.01.20 |
申请人 |
NOTOHAMIPRODJO HUBERTUS;PITIGOI-ARON RADU;MARVELL SEMICONDUCTOR, INC. |
发明人 |
NOTOHAMIPRODJO HUBERTUS;PITIGOI-ARON RADU |
分类号 |
G06F19/00;G01R19/04;G01R19/25 |
主分类号 |
G06F19/00 |
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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