| 发明名称 | DC-DC converter, semiconductor device, and electronic device | ||
| 摘要 | A DC-DC converter with improved voltage conversion efficiency is provided. The DC-DC converter includes a first circuit configured to generate a first signal containing data on current flowing through a load, a second circuit configured to amplify the first signal, a third circuit configured to generate a second signal containing data on voltage applied to the load, a fourth circuit configured to hold the second signal, a fifth circuit configured to amplify the second signal held by the fourth circuit, a sixth circuit configured to correct a difference in electrical characteristics between the second circuit and the fifth circuit, a seventh circuit configured to convert a first voltage to a second voltage supplied to the load, and an eighth circuit configured to control a level of the second voltage generated by the seventh circuit in accordance with either the amplified first signal or the amplified second signal. | ||
| 申请公布号 | US9231475(B2) | 申请公布日期 | 2016.01.05 |
| 申请号 | US201514632164 | 申请日期 | 2015.02.26 |
| 申请人 | Semiconductor Energy Laboratory Co., Ltd. | 发明人 | Takahashi Kei |
| 分类号 | H05B37/02;G05F1/00;H02M3/158 | 主分类号 | H05B37/02 |
| 代理机构 | Fish & Richardson P.C. | 代理人 | Fish & Richardson P.C. |
| 主权项 | 1. A DC-DC converter comprising: a first circuit configured to generate a first signal, the first signal containing data on current flowing through a load; a second circuit configured to amplify the first signal to generate a first amplified signal; a third circuit configured to generate a second signal, the second signal containing data on voltage applied to the load; a fourth circuit configured to hold the second signal; a fifth circuit configured to amplify the second signal held by the fourth circuit to generate a second amplified signal; a sixth circuit configured to correct a difference in electrical characteristics between the second circuit and the fifth circuit; a seventh circuit configured to convert a first voltage to a second voltage, the first voltage being supplied from a power source, and the second voltage being supplied to the load; and an eighth circuit configured to control a level of the second voltage generated by the seventh circuit in accordance with either the first amplified signal or the second amplified signal. | ||
| 地址 | Kanagawa-ken JP | ||