Level shifter

A level shifter, comprising:

• an input circuit, receiving an input signal operating within a first voltage range, wherein the first voltage range is defined by a first voltage level;
• a pull-up circuit, coupled between a second voltage line and the input circuit, wherein the second voltage line supplies a second voltage level that is higher than the first voltage level, and a first connection node between the pull-up circuit and the input circuit serves as an output terminal of the level shifter;
• an acceleration circuit, coupled to the first connection node to accelerate a low-to-high transition at the output terminal;
• and
• an acceleration controller, coupled to the acceleration circuit, and comprising a first series of pulse generation transistors which are connected in series on a first side,
• wherein;
• the first series of pulse generation transistors receive first driving signals, wherein there are time differences between the first driving signals, so that the acceleration controller enables the acceleration circuit in a pulse manner;
• and
• the first driving signals are derived from the input signal.