| 摘要 |
A multiphase inverter type circuit with MOS elements, in which nodal capacitor precharging and conditional discharging takes place, is disclosed. The inverter type circuit, in addition to the conventional elements, includes one or more additional MOS elements which are used to predischarge all nodal capacitors prior to the precharging phase. Such predischarging insures that during conditional discharging even though charges are coupled out of gate capacitors of input MOS elements, which are turned ONdue to appropriate binary inputs, supplied thereto, through the parasitic capacitors of the latter-mentioned elements, the coupled-out charges do not affect the ON state of the elements to which the binary inputs are applied. By predischarging all nodal capacitors, during precharging charges are coupled into the gate capacitors of the input MOS elements through their parasitic capacitors. These charges are equal to the charges which are coupled out during the subsequent conditional discharging phase. Consequently, the net charges at the gate capacitors are not affected by the charges coupled in and coupled out through the parasitic capacitors, whose adverse effect is thereby cancelled.
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