| 摘要 |
PURPOSE:To prevent the first and second switches from simultaneously becoming ON by connecting a logic circuit with the first and second switch control terminals which respectively become ON and OFF in reverse phases. CONSTITUTION:When a control signal IN1 is high level and a control signal IN2 is low level, the output of an AND circuit 23 becomes high level, and the output of an AND circuit 25 becomes low level, a transistor 24 is turned ON, and a transistor 26 is turned OFF. Then, when the states of the control signals IN1, IN2 are inverted, the output of the AND circuit 23 becomes low level, and the transistor 24 is transferred from ON to OFF. After the transistor 24 is completely turned OFF, the output of the AND circuit 25 becomes high level, and the transistor 26 is transferred to ON. |
