发明名称 |
Power Supply Unit and Operating Method of the Same |
摘要 |
A highly efficient power supply unit compatible with a single-phase three-wire system and an operating method of such a power supply unit are provided. The power supply unit includes first and second switching legs connected in parallel to a first capacitor leg with a DC power supply connected thereto. One end of the second capacitor leg is connected to the middle point of the first switching leg through a first inductor, and the other end is connected to the middle point of the second switching leg through a second inductor. The two ends of the second capacitor leg and the middle point of the second capacitor leg are defined as AC terminals. A switch is provided between middle points of first and second capacitor legs. A control part sets the switch to OFF when power is input/output only between one end of the second capacitor leg and the other end. |
申请公布号 |
US2014104907(A1) |
申请公布日期 |
2014.04.17 |
申请号 |
US201314050780 |
申请日期 |
2013.10.10 |
申请人 |
HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD. |
发明人 |
SHIMADA TAKAE;KANOUDA AKIHIKO;AIHARA NOBUYUKI;TAKAHASHI YOSHIHIDE |
分类号 |
H02M7/5387 |
主分类号 |
H02M7/5387 |
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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