| 发明名称 |
POWER SUPPLY DEVICE AND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE |
| 摘要 |
A power supply device includes a linear regulator including an output stage amplifier, a current sensing circuit, and a switching regulator. The current sensing circuit detects an output current of the linear regulator, and is disposed in parallel with the output stage amplifier, in a configuration corresponding to the output stage amplifier. The switching regulator operates in accordance with an output signal of the current sensing circuit. The linear regulator and the switching regulator operate in collaboration with each other to generate an output voltage at an output node. |
| 申请公布号 |
US2014285164(A1) |
申请公布日期 |
2014.09.25 |
| 申请号 |
US201314082589 |
申请日期 |
2013.11.18 |
| 申请人 |
FUJITSU LIMITED |
发明人 |
OISHI Kazuaki;YOSHIDA Eiji;SAKAI Yasufumi |
| 分类号 |
H02M3/158 |
主分类号 |
H02M3/158 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A power supply device comprising:
a linear regulator configured to include an output stage amplifier; a current sensing circuit configured to detect an output current of the linear regulator, the current sensing circuit being disposed in parallel with the output stage amplifier, in a configuration corresponding to the output stage amplifier; and a switching regulator configured to operate in accordance with an output signal of the current sensing circuit, wherein
the linear regulator and the switching regulator operate in collaboration with each other to generate an output voltage at an output node. |
| 地址 |
Kawasaki-shi JP |
