发明名称 |
APPARATUS, SYSTEM AND METHOD FOR CASCADED POWER CONVERSION |
摘要 |
An apparatus, method, and system are provided for power conversion to supply power to a load such as a plurality of light emitting diodes. An exemplary apparatus comprises: a first power converter stage having a first power switch and a first inductive element; a second power converter stage having a second power switch and a second inductive element; a plurality of sensors; and a controller. The second power converter stage provides an output current to the load. The controller is adapted to use a sensed input voltage to determine a switching period, and is further adapted to turn the first and second power switches into an on-state at a frequency substantially corresponding to the switching period while maintaining a switching duty cycle within a predetermined range. |
申请公布号 |
US2015311808(A1) |
申请公布日期 |
2015.10.29 |
申请号 |
US201514703736 |
申请日期 |
2015.05.04 |
申请人 |
Point Somee Limited Liability Company |
发明人 |
Shteynberg Anatoly;Rodriguez Harry;Lehman Bradley M. |
分类号 |
H02M3/335;H05B33/08 |
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 |
Dover DE US |