| 摘要 |
It is possible to flexibly set a switching timing in an inverter. An H-bridge circuit is controlled according to a triangular wave signal (Vosc) and a difference voltage (Verr). Here, during a first period until the triangular wave signal reaches the difference voltage, a first high side transistor (MH1) and a second low side transistor (ML2) are kept ON. During a second period until the triangular wave signal reaches the peak edge, the first high side transistor (MH1) is kept ON. During a third period until the triangular wave signal reaches the bottom edge, the second high side transistor (MH2) is kept ON. During a fourth period until the triangular wave signal again reaches the difference voltage, the first low side transistor (ML1) and the second high side transistor (MH2) are kept ON. During a fifth period until the triangular wave signal again reaches the peak edge, the second high side transistor (MH2) is kept ON. During a sixth period until the triangular wave signal again reaches the bottom edge, the first high side transistor (MH1) is kept ON.
|
