Amplifier circuit and method of signal amplification
AssigneeModiotek Co., Ltd.
InventorsChe-Ya Chang, Yuan-Han Yang, Chun-Yuan Cheng
Life of this patent
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Abstract
An amplifier circuit and a method of signal amplification are provided. The amplifier circuit includes a first amplifier and a charge pump. The first amplifier includes a first terminal, a second terminal, and a third terminal. The first terminal is coupled to a first external voltage. The second terminal is coupled to a negative voltage. The third terminal is coupled to a ground reference voltage. The charge pump is coupled to the first amplifier for providing the negative voltage transformed from a second external voltage.
Claims18
An amplifier circuit, comprising:
- a first amplifier, comprising a first terminal, a second terminal, and a third terminal, wherein the first terminal is coupled to a first external voltage, the second terminal is coupled to a negative voltage, the third terminal is coupled to a ground reference voltage;
- and
- a charge pump, coupled to the first amplifier, providing the negative voltage transformed from a second external voltage.
A method of signal amplification for an amplifier circuit which has a first amplifier, comprising:
- providing a first external voltage and a second external voltage to the amplifier circuit;
- providing a negative voltage transformed from the second external voltage to the first amplifier;
- providing a ground reference voltage to the first amplifier;
- and
- amplifying a first input signal received by the first amplifier and outputting the amplified first input signal.
Dependencies are inferred from the claim text.