Power switching circuit

A power switching circuit, comprising:

• a driving circuit, outputting a first driving signal and a second driving signal;
• a determining circuit, coupled to the driving circuit and outputting a control signal to the driving circuit;
• a first power switch, coupled to a first input voltage and receiving the first driving signal;
• and
• a second power switch, coupled to a second input voltage and receiving the second driving signal,
• wherein when the first power switch and the second power switch are switched, the second driving signal rises from a first level to a preset level, and the determining circuit controls the driving circuit to utilize the first driving signal to turn off the first power switch,
• wherein the determining circuit comprises a sensing circuit and a dead time control circuit,
• wherein the sensing circuit comprises a driving signal selector and a comparator, the driving signal selector receives the first driving signal and the second driving signal, a first input terminal of the comparator is coupled to the driving signal selector, and a second input terminal of the comparator is coupled to a preset voltage.