| 发明名称 |
POWER CONVERTER, SHORT-CIRCUIT DETECTING DEVICE THEREOF AND SHORT-CIRCUIT DETECTING METHOD THEREOF |
| 摘要 |
A short-circuit detecting device includes a coil and a processing circuit. The coil is configured to detect a variation of magnetic flux intensity generated by a current variation of a current flowing through a power semiconductor switch and to generate an induced electromotive force based on the variation of magnetic flux intensity. When the current variation rate of said current is greater than a predetermined value, the processing circuit is configured to generate a short-circuit signal based on the induced electromotive force so as to turn off the power semiconductor switch based on the short-circuit signal. |
| 申请公布号 |
US2015364909(A1) |
申请公布日期 |
2015.12.17 |
| 申请号 |
US201514689034 |
申请日期 |
2015.04.16 |
| 申请人 |
Delta Electronics (Shanghai) Co., Ltd. |
发明人 |
WANG Ming;YING Jian-Ping;HUANG Jian-Gang;QIAO Li-Feng;JIANG Tao |
| 分类号 |
H02H3/20;H02H7/10 |
主分类号 |
H02H3/20 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A short-circuit detecting device, comprising:
a coil configured to detect a variation of magnetic flux intensity generated by a current variation of a current flowing through a power semiconductor switch unit and configured to generate an induced electromotive force based on the variation of magnetic flux intensity; and a processing circuit configured to generate a short-circuit signal based on the induced electromotive force when an current variation rate of the current is greater than a predetermined value, so as to turn off the power semiconductor switch unit based on the short-circuit signal. |
| 地址 |
Shanghai CN |
