Amplifier device
AssigneeInfineon Technologies AG
InventorDaniel Schroegendorfer
Life of this patent
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Abstract
A multi-stage device includes multiple stages such as a first stage and a second stage. During operation, the first stage receives an input signal and outputs an intermediate signal based on the input signal. The second stage is coupled to the first stage to receive the intermediate signal and produce an output signal. According to one configuration, the second stage includes: i) a transistor, and ii) a circuit path between the first stage and the transistor. The transistor component is controlled to derive the output signal from the intermediate signal inputted to the circuit path.
Claims34
An amplifier comprising:
- a first amplifier stage to receive an input signal, the first amplifier stage producing an intermediate signal based on the input signal;
- and
- a second amplifier stage coupled to the first amplifier stage to receive the intermediate signal and produce an output signal, the second amplifier stage including:
- i) a transistor,
- ii) a power source coupled to supply voltage to a first node of the transistor, and
- iii) a circuit path between the first amplifier stage and the transistor, the intermediate signal inputted to the circuit path to control the transistor and produce the output signal from a second node of the transistor based on the intermediate signal.
An amplifier comprising:
- a first stage to receive an input signal, the first stage producing an intermediate signal based on the input signal;
- and
- a second stage coupled to the first stage to receive the intermediate signal and produce an output signal, the second stage including:
- i) a transistor, and
- ii) a circuit path between the first stage and the transistor, the intermediate signal inputted to the circuit path to derive the output signal from the intermediate signal, the amplifier further comprising:
- a first component and a second component disposed in series between a node of the first stage outputting the intermediate signal and a node of the transistor, the output signal derived from a circuit node coupling the first component to the second component.
A method comprising:
- receiving an input signal at a first stage of a circuit;
- generating an intermediate signal from the input signal;
- inputting the intermediate signal to a circuit path coupled to a transistor in a second stage of the circuit, a power source coupled to supply voltage to a first node of the transistor, the intermediate signal controlling operation of the transistor;
- and
- producing an output signal from a second node of the transistor via control of the transistor based on the intermediate signal inputted to the circuit path.
Dependencies are inferred from the claim text.