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

Claim 7:
8. The negative voltage switching device of claim 6,
wherein the fourth switching module comprises:
a seventh P-type transistor having a source connected to the first control signal terminal;
an eighth P-type transistor having a source connected to the first control signal terminal;
a seventh 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 seventh P-type transistor; and
an eighth N-type transistor having a source connected to the first negative voltage terminal, and a drain connected to a drain of the eighth P-type transistor,
wherein a gate of the seventh P-type transistor and the drain of the eighth N-type transistor are connected, and a gate of the eighth P-type transistor and the drain of the seventh N-type transistor are connected.