Patent ID: 11955955
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A method of operating a driver circuit, the method comprising:
receiving a first power supply voltage on a first power supply node;
in response to the first power supply voltage, using a first series of n-type high electron mobility transistors (HEMTs) coupled between the power supply node and a power supply reference node to control a first voltage on a first node;
in response to the first voltage, using a second series of n-type HEMTs coupled between the power supply node and the power supply reference node to control a second voltage on a first output terminal;
in response to the second voltage and an input signal, using a third series of n-type HEMTs coupled between the power supply node and the power supply reference node to control an internal signal on a second node;
in response to the internal signal, using a fourth series of n-type HEMTs coupled between the power supply node and the power supply reference node to control a third voltage on a third node; and
in response to the internal signal and the third voltage, using a fifth series of n-type HEMTs coupled between the power supply node and the power supply reference node to control an output signal at a second output terminal.