发明名称 |
Semiconductor device used in step-up DC-DC converter, and step-up DC-DC converter |
摘要 |
A power supply device is disclosed that is able to satisfy the power requirements of a device in service and has high efficiency. The power supply device includes a first power supply; a voltage step-up unit that steps up an output voltage of the first power supply; a voltage step-down unit that steps down an output voltage of the voltage step-up unit; and a load that is driven to operate by an output voltage of the voltage step-down unit. The voltage step-up unit steps up the output voltage of the first power supply to a lower limit of an operating voltage of the voltage step-down unit.
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申请公布号 |
US2008006875(A1) |
申请公布日期 |
2008.01.10 |
申请号 |
US20070811435 |
申请日期 |
2007.06.08 |
申请人 |
OHTSUKA MASAYA;UEDA YOSHINORI |
发明人 |
OHTSUKA MASAYA;UEDA YOSHINORI |
分类号 |
H01L29/76 |
主分类号 |
H01L29/76 |
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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