| 摘要 |
A voltage level shifter comprises a plurality of PMOS transistors coupled in series with NMOS transistors to form a plurality of pull-down inverters. When the second voltage level is enabled to connect, the pull-down inverters pull down faster than the pull-down NMOS transistors alone, and thus, the pull-up PMOS transistors pull up immediately to connect the first voltage level to the second voltage level. Thus, the PMOS transistors added to form pull-down inverters improve the switching time and eliminate the kinks in the output voltage.
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