Patent ID: 11915767
Assignee: KEY FOUNDRY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 2:
3. The negative voltage switching device of claim 2,
wherein first switching module comprises:
a first P-type transistor having a source connected to a positive voltage terminal to supply a positive voltage, and a gate connected to the second control signal terminal;
a second P-type transistor having a source connected to the positive voltage terminal, and a gate connected to the second control signal terminal;

a first N-type transistor having a source connected to a first negative voltage terminal to supply the first negative voltage, and a drain connected to a drain of the first P-type transistor; and
a second N-type transistor having a source connected to the first negative voltage terminal to supply the first negative voltage, and a drain connected to a drain of the second P-type transistor,
wherein the drain of the first P-type transistor and a gate of the second N-type transistor are connected, and a drain of the second P-type transistor and a gate of the first N-type transistor are connected.