Patent ID: 11863127
Assignee: REALTEK SEMICONDUCTOR CORPORATION
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. An amplifier device, comprising:
an amplifier circuit coupled to a voltage input terminal, and configured to receive a first driving voltage;
a first voltage converting circuit comprising:
at least one first voltage divider unit coupled between the voltage input terminal and a reference voltage terminal, configured to receive the first driving voltage, and output at least one first voltage according to the first driving voltage;
a first switch coupled to the voltage input terminal, and configured to receive and transmit the first driving voltage to be a first operating voltage; and
a second switch coupled to the at least one first voltage divider unit, and configured to receive and transmit the at least one first voltage to be the first operating voltage; and
a first control circuit coupled between the amplifier circuit and the first voltage converting circuit, wherein the first control circuit is configured to receive the first operating voltage to generate a first operating signal,
wherein the amplifier circuit is configured to generate an output voltage according to the first operating signal.