| 摘要 |
The disclosure relates to a voltage converter, converting a first signal of a first voltage to output a second signal of a second voltage. A level shifter receives the first signal to generate the second signal. An isolation circuit is coupled to the output of the level shifter, passing the second signal out. When the input of voltage converter is floated, the isolation circuit stops passing the second signal as the output, instead, the isolation circuit outputs a substitution signal having a predetermined voltage level irrelevant to the input of the level shifter.
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