发明名称 |
POWER SUPPLY APPARATUS |
摘要 |
The power supply unit has a sample-and-hold circuit that samples a voltage supplied from a power source to a load according to a sample timing signal and holds the voltage as an output set value for the DC/DC converter. The unit supplies a load with an output from the DC/DC converter controlled so that an output voltage of power source (22) becomes an output set value of the DC/DC converter when the voltage of power source (22) drops. Since a voltage corresponding to the voltage of the power source before the voltage drop is set to the output set value of the DC/DC converter, a stable power supply unit is obtained in which the difference is always small between the voltage of the power source in normal times and the output voltage from the DC/DC converter when the voltage of the power source temporarily fluctuates. |
申请公布号 |
EP2040362(A4) |
申请公布日期 |
2014.06.25 |
申请号 |
EP20070745467 |
申请日期 |
2007.06.18 |
申请人 |
PANASONIC CORPORATION |
发明人 |
YOSHIDA, KOJI;HANDA, HIROYUKI;MATSUO, MITSUHIRO;NAKAMURA, MASAFUMI;MURAKAMI, TAKAHARU |
分类号 |
H02M3/155;G11C27/02;H02J7/34;H02J9/06;H02M1/00 |
主分类号 |
H02M3/155 |
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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