| 发明名称 | Control circuit of semiconductor switching element | ||
| 摘要 | A control circuit of a semiconductor switching element includes a gate driving circuit and a negative power source circuit. The gate driving circuit drives the semiconductor switching element disposed on a power supply path of an inductive load. The negative power source circuit is connected between output terminals of the semiconductor switching element. The negative power source circuit includes a series circuit of a capacitor and a diode in a forward direction connected from a negative potential side terminal to a positive potential side terminal of the output terminals. A common connection point of the capacitor and the diode in the negative power source circuit is connected to a negative power source terminal of the gate driving circuit. | ||
| 申请公布号 | US9490800(B2) | 申请公布日期 | 2016.11.08 |
| 申请号 | US201514731591 | 申请日期 | 2015.06.05 |
| 申请人 | DENSO CORPORATION | 发明人 | Kimura Tomonori |
| 分类号 | H03B1/00;H03K17/687 | 主分类号 | H03B1/00 |
| 代理机构 | Posz Law Group, PLC | 代理人 | Posz Law Group, PLC |
| 主权项 | 1. A control circuit of a semiconductor switching element comprising: a gate driving circuit driving the semiconductor switching element disposed on a power supply path of an inductive load; and a negative power source circuit connected between output terminals of the semiconductor switching element, the negative power source circuit including a series circuit of a capacitor and a diode in a forward direction connected from a negative potential side terminal to a positive potential side terminal of the output terminals, wherein a common connection point of the capacitor and the diode in the negative power source circuit is connected to a negative power source terminal of the gate driving circuit. | ||
| 地址 | Kariya JP | ||