Patent ID: 11962307
Assignee: SIGMASTAR TECHNOLOGY LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. The output circuit according to claim 1, wherein the signal output circuit comprises:
a first level shift circuit, adjusting a level of the digital signal to generate a first signal;
a second level shift circuit, adjusting the level of the digital signal to generate a second signal;
a first transistor, receiving the first supply voltage, and selectively turned on according to the first signal;
a second transistor, biased by the second voltage, wherein a first terminal of the second transistor is coupled to the first transistor, and a second terminal of the second transistor is coupled to an output node to output the digital output signal;
a third transistor, biased by the first voltage, and coupled to the output node; and
a fourth transistor, selectively turned on according to the second signal, wherein a first terminal of the fourth transistor is coupled to the third transistor, and a second terminal of the fourth transistor is coupled to a ground.