发明名称 |
PRIMARY-SIDE BASED CONTROL OF SECONDARY-SIDE CURRENT FOR A TRANSFORMER |
摘要 |
A power control system includes a transformer and a controller regulates a current on a secondary-side of the transformer based on a primary-side signal value. In at least one embodiment, the secondary-side current is a current out of a filter coupled to a rectifier and the secondary-side of the transformer and into a load. In at least one embodiment, the primary-side signal value is a sample of a current in the primary-side windings of the transformer. In at least one embodiment, the primary- side signal value represents a sample value of a primary-side transformer current. Proper timing of sampling the primary-side signal value substantially eliminates contributions of a transformer magnetizing current from the primary-side transformer current sample. Sampling the primary-side signal value when contributions of the transformer magnetizing current are substantially eliminated allows at least an average of the secondary-side current to be determined from the primary-side signal value. |
申请公布号 |
WO2010065598(A2) |
申请公布日期 |
2010.06.10 |
申请号 |
WO2009US66350 |
申请日期 |
2009.12.02 |
申请人 |
CIRRUS LOGIC, INC.;MELANSON, JOHN, L. |
发明人 |
MELANSON, JOHN, L. |
分类号 |
H02M3/335;G01R19/00 |
主分类号 |
H02M3/335 |
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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