| 发明名称 |
USB POWER SUPPLY APPARATUS |
| 摘要 |
A USB power supply apparatus supplies electric power to a USB power reception apparatus. A bus line connects the output of the power supply circuit and the USB power reception apparatus. A switch is provided on a path of the bus line. A feedback circuit feedback controls the power supply circuit such that the output voltage VOUT of the power supply circuit approaches a reference voltage VREF. A controller adaptively controls the reference voltage VREF based on an electrical state of the USB power supply apparatus. |
| 申请公布号 |
US2016116928(A1) |
申请公布日期 |
2016.04.28 |
| 申请号 |
US201514919109 |
申请日期 |
2015.10.21 |
| 申请人 |
ROHM CO., LTD. |
发明人 |
MOTOKI Kenichi |
| 分类号 |
G05F1/575 |
主分类号 |
G05F1/575 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A USB power supply apparatus that conforms to the USB (Universal Serial Bus) specification, and that supplies electric power to a USB power reception apparatus, the USB power supply apparatus comprising:
a power supply circuit; a bus line that connects an output of the power supply circuit and the USB power reception apparatus; a switch provided on a path of the bus line; a feedback circuit that feedback controls the power supply circuit such that the output voltage of the power supply circuit approaches a reference voltage; and a controller that adaptively controls the reference voltage based on an electrical state of the USB power supply apparatus. |
| 地址 |
Ukyo-Ku JP |
