| 发明名称 | Power supply circuit | ||
| 摘要 | According to one embodiment, a power supply circuit includes a switching control unit that compares a DA converted value of the high order bit of a digital compensation value calculated from an output voltage of a smoothing circuit with a detection value of a current flowing into the smoothing circuit and controls the switching of a switching element on the basis of a signal obtained by shifting the timing of the comparison result on the basis of the low order bit of the digital compensation value. | ||
| 申请公布号 | US8854024(B2) | 申请公布日期 | 2014.10.07 |
| 申请号 | US201113052350 | 申请日期 | 2011.03.21 |
| 申请人 | Kabushiki Kaisha Toshiba | 发明人 | Teh Chen Kong |
| 分类号 | H02M3/158;H02M1/00 | 主分类号 | H02M3/158 |
| 代理机构 | White & Case LLP | 代理人 | White & Case LLP |
| 主权项 | 1. A power supply circuit comprising: a switching element that divides a direct current; a smoothing circuit that smoothes the direct current divided by the switching element; and a switching control unit that compares a DA converted value of the high order bit of a digital compensation value calculated from an output voltage of the smoothing circuit with a detection value of a current flowing from the switching element into the smoothing circuit and controls the switching of the switching element on the basis of a signal obtained by shifting a rising or falling edge of the comparison result by a finite time calculated by using the low order bit of the digital compensation value. | ||
| 地址 | Tokyo JP | ||