| 发明名称 |
SWITCHING POWER SUPPLY DEVICE |
| 摘要 |
A power control IC has a switching control circuit of a fixed on-period type which generates an output voltage from an input voltage by driving a coil by turning on and off an output transistor according to a result of comparison between a feedback voltage and a reference voltage, and a quieting circuit which forcibly turns on the output transistor by ignoring the result of comparison when, after an on-timing of the output transistor, a predetermined threshold time elapses without the next on-timing coming. |
| 申请公布号 |
US2016028311(A1) |
申请公布日期 |
2016.01.28 |
| 申请号 |
US201514804795 |
申请日期 |
2015.07.21 |
| 申请人 |
Rohm Co., Ltd. |
发明人 |
MURAKAMI Kazuhiro |
| 分类号 |
H02M3/158 |
主分类号 |
H02M3/158 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A power control IC comprising:
a switching control circuit of a fixed on-period type, the switching control circuit being operable to generate an output voltage from an input voltage by driving a coil by turning on and off an output transistor according to a result of comparison between a feedback voltage and a reference voltage; and a quieting circuit operable to forcibly turn on the output transistor by ignoring the result of comparison when, after an on-timing of the output transistor, a predetermined threshold time elapses without a next on-timing coming. |
| 地址 |
Kyoto JP |
