Switch device capable of providing a discharge path according to signal level of an input signal

A switch device, comprising:

• a driver circuit comprising an input terminal configured to receive an input signal, an output terminal configured to output an output signal, a first terminal coupled to a first reference terminal, and a second terminal coupled to a second reference terminal;
• a switch circuit comprising a control terminal configured to receive the output signal;
• and
• a level transition circuit configured to provide a discharge path used to discharge accumulated electric charges at the control terminal of the switch circuit to a third reference terminal, and comprising:
• a first terminal configured to receive the output signal;
• a second terminal coupled to the third reference terminal;
• a third terminal configured to receive the input signal;
• a pulse generation circuit comprising an input terminal coupled to the third terminal of the level transition circuit, and an output terminal configured to output a pulse signal;
• a conversion circuit comprising an input terminal configured to receive the pulse signal, and a first output terminal configured to output a first operation signal according to the pulse signal;
• and
• an operation circuit comprising a first terminal coupled to the first terminal of the level transition circuit, a second terminal coupled to the second terminal of the level transition circuit, and a first operation terminal coupled to the first output terminal of the conversion circuit and configured to receive the first operation signal;
• wherein:
• in a first transition interval, the input signal is transitioned from a first input signal level to a second input signal level, the level transition circuit transitions the output signal from a first output signal level to a third output signal level, the third output signal level is between the first output signal level and a second output signal level, and the level transition circuit transitions the output signal from the first output signal level to the third output signal level in a predetermined interval;
• and
• the pulse signal is related to the predetermined interval.