| 摘要 |
A load drive apparatus includes a switching device, a gate drive circuit, a clamp circuit, a temperature detection circuit, and an arithmetic device. The switching device controls an on-off state of current supply to a load. The gate drive circuit turns on the switching device by controlling a gate voltage of the switching device so that the switching device operates in a full-on state. The clamp circuit clamps the gate voltage of the switching device to a clamp voltage lower than the gate voltage in the full-on state and higher than a mirror voltage. The temperature detection circuit detects a temperature of the switching device. The arithmetic device calculates a voltage corresponding to a variation in a mirror voltage based on the detected temperature and controls the clamp voltage in the clamp circuit so as to be the calculated voltage. |
