| 摘要 |
PURPOSE:To reduce the peak value of a discharge current flowing from an output terminal to a ground point and a charging current flowing from a power supply to an output terminal and a through-current by supplying power through, a delay circuit and a depletion transistor(TR). CONSTITUTION:When an input signal to an input terminal 1 changes from a low to a high level, the output of an inverter 4 changes from a low to a from level with a delay. Thus, the gate potential of the depletion TR Q4 is not changed from the low level even when the input signal changes from the low level to the high level and a channel resistor is large, then the through- current and the peak value of the discharge current flowing momentarily from the output terminal 2 to a ground point are reduced. When the input signal to the input terminal 1 changes from the high to the low level, the gate potential of the depletion P-channel MOS TP Q3 is not changed from the high level and the channel resistance is large, then the through-current and the peak value of the charging current flowing momentarily from the power terminal to the output terminal 2 are reduced. |
