| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductor circuit to generate a multi-level pulse like a ternary pulse while using transistors of low breakdown strength. SOLUTION: This semiconductor circuit has a first circuit (part of a coupling capacitor 41, a diode 42 and MOS transistors 43-46) for outputting a first pulse, a second circuit (part of MOS transistors 37-40) for outputting a second pulse of a polarity opposite to that of the first pulse, an output line (line of anode D) for outputting any one of outputs of the first and second circuits, a first switch 47 connected between the output part of the first circuit and the output line, and a second switch 48 connected between the output part of the second circuit and the output line. Thus, pulses of different polarities can be generated while turning a voltage between the source and drain of the MOS transistor to a low value as VDD or VSS. |
