| 摘要 |
An overheating detection circuit for detecting an overheating of a power integrated circuit, said power integrated circuit being formed in a substrate, comprising: first and second temperature detection circuits, said first temperature detection circuit having a first temperature threshold and said second temperature detection circuit having a second temperature threshold lower than said first temperature threshold, and hysteresis means for receiving said signals produced by said first and second temperature detecting circuits for producing an overheating signal upon receipt of said signals produced by said first temperature detecting circuit to indicate that said power integrated circuit is overheated, and for inhibiting the output of said overheating signal upon a receipt of said signal produced by said second temperature detecting circuit after receipt of said signal produced by said first temperature detecting circuit to indicate that said power integrated circuit is not overheated, said overheating detection circuit being disposed in said substrate. <IMAGE> |
