| 主权项 |
1. A short protection circuit for protecting a power switch, the power switch having a first end, a second end and a control end, the short protection circuit having a first input, a second input and an output, wherein the first input of the short protection circuit is coupled to the first end of the power switch, the second input of the short protection circuit is coupled to the second end of the power switch, and the output of the short protection circuit is configured to provide a short protection signal, the short protection circuit comprising a transistor, and wherein:
the transistor has a threshold voltage; the short protection circuit is configured to compare a differential voltage between the first end of the power switch and the second end of the power switch to the threshold voltage of the transistor only when the power switch is in an ON state; and wherein when the differential voltage is higher than the threshold voltage, the short protection signal transits in an effective state configured to turn off the power switch. |
