| 摘要 |
PURPOSE:To increase the drive current without giving adverse effect onto the circuit of next stage or causing malfunction by providing plural current paths connected in parallel with different time between an output terminal and a constant voltage source. CONSTITUTION:When input voltage Vin changes from L to H, a FET 41 between a high voltage source 43 and an output terminal 1 is turned from on to off and a FET 42 at the low potential side is turned off to on. In this case, a current flows transiently from a high voltage source 43 toward ground at the changeover of turn-on/turn-off of the two FETs 41, 42 and a shock current flows from the circuit at H level of the next stage via the output terminal 1. The current is branched into current paths 31-33 with different times and the current change flowing to the ground 2 at changeover is mitigated. Thus, no large undershoot or overshoot is caused. |
