| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent particularly signal delay and malfunction in a reception circuit side in a circuit transmitting/receiving a logic signal through a capacitor. SOLUTION: A source voltage of a buffer 410 transmitting the logic signal in a transmission circuit 400 is boosted to (V1'-GND) larger than the source voltage (V2-V3) of the buffer 610 inputting the logic signal in the reception circuit 600. Thus, since the amplitude of the logic signal in an input point B is enlarged from (V2+Vf) being a clipping level by protective diodes D1, D2 to (V3-Vf), malfunction as well as signal delay is prevented.</p> |
