发明名称 |
Power failure-free power supply apparatus |
摘要 |
A power failure-free power supply apparatus capable of minimizing time required for parallel operation of a power rectifier and a power rectifier/inverter, to thereby minimize a deterioration in operational reliability. The power rectifier converts an output of an AC power supply into DC power. A power inverter converts DC power into AC one. The power rectifier/inverter carries out rectifying/inverting operation. An output of the power rectifier and an AC output of the power rectifier/inverter are fed through a change-over unit to a load. Operation of switches is controlled depending on a detection signal of a current detector for detecting a charging current of a storage battery. A control unit permits parallel operation of the power rectifier and power rectifier/inverter when a residual capacity of the storage battery is at an increased level and permits the storage battery to be charged when the residual capacity is at a reduced level. An increase in charging current during the parallel operation minimizes time required for the parallel operation.
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申请公布号 |
US6111764(A) |
申请公布日期 |
2000.08.29 |
申请号 |
US19990415969 |
申请日期 |
1999.10.12 |
申请人 |
SANYO DENKI CO., LTD. |
发明人 |
ATOU, SATOSHI;IKEDA, HARUHIKO;MIKAMI, HITOSHI |
分类号 |
H02J9/06;(IPC1-7):H02M5/40;H02J7/14 |
主分类号 |
H02J9/06 |
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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