| 摘要 |
An exemplary power switching circuit ( 20 ) includes a control signal input terminal ( 210 ) which is configured for receiving a control signal; an output terminal ( 220 ) configured to be connected to a load circuit with capacitance; a direct current (DC) power supply ( 230 ); a first switching transistor ( 240 ) including a control electrode connected to the control signal input terminal, a first current conducting electrode, and a grounded second current conducting electrode; a second switching transistor ( 250 ) including a control electrode connected to the first current conducting electrode of the first switching transistor, a first current conducting electrode connected to the DC power supply, and a second current conducting electrode connected to the output terminal; and a third switching transistor ( 260 ) including a control electrode connected to the control signal input terminal, a first current conducting electrode connected to the output terminal, and a grounded second current conducting electrode.
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