AMPLIFIER CIRCUIT APPLIED TO DISPLAY APPARATUS

摘要

An amplifier circuit applied to a source driver of a display apparatus includes a first input terminal, a second input terminal, an operational amplifier, an output stage and an output terminal. The first input terminal receives a first input signal. The second input terminal receives a second input signal. The operational amplifier is coupled to the first input terminal and second input terminal and receives the first input signal and second input signal and outputs a first control signal and a second control signal respectively. The output stage includes a first BJT and a second BJT coupled in series between a first terminal and a second terminal. The first BJT and second BJT are coupled to the operational amplifier and receive the first control signal and second control signal respectively. The output terminal is coupled between the first BJT and second BJT and outputs an output signal.

主权项

1. An amplifier circuit applied to a source driver of a display apparatus, the amplifier circuit comprising:
a first input terminal configured to receive a first input signal; a second input terminal configured to receive a second input signal; an operational amplifier, coupled to the first input terminal and the second input terminal respectively, configured to receive the first input signal and the second input signal respectively and output a first control signal and a second control signal respectively; an output stage comprising a first bipolar junction transistor (BJT) and a second BJT coupled in series between a first terminal and a second terminal, the first BJT and the second BJT being coupled to the operational amplifier respectively and configured to receive the first control signal and the second control signal respectively; and an output terminal coupled between the first BJT and the second BJT and configured to output an output signal.