| 摘要 |
A signal transfer circuit for dynamic action with boot strap effect is formed with an inputting transistor Tr11 and a driving transistor Tr12 for driving a load Z1. To a gate electrode of a resetting transistor Tr13, a positive voltage V1 and a negative voltage V2 are alternately applied at 50% of duty ratio in synchronism with a shift pulse by transistors Tr15 and Tr16 connected in series between the positive voltage V1 and the negative voltage V2 and pulses PHI 1R and PHI 2R which are synchronous with shift pulses PHI 1 and PHI 2. When an output Q1 is HIGH level, a transistor Tr14 becomes conductive to force a gate voltage of the transistor Tr13 to 0 to release resetting.
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