Power amplifier circuit
AssigneeQUALCOMM Incorporated
InventorsJeremy DUNWORTH, Hyunchul PARK, Bon-Hyun KU, Vladimir APARIN
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Abstract
The present disclosure provides an amplifier circuit that includes one or more amplifier stages, each of the one or more amplifier stages including a complementary transistor configuration. The complementary transistor configuration includes an NMOS transistor and a PMOS transistor. The NMOS transistor is electrically coupled in parallel to the PMOS transistor. The amplifier circuit further includes an output amplifier stage electrically coupled to an output of the one or more amplifier stages, the output amplifier stage including a non-complementary transistor configuration including one or more NMOS transistors or PMOS transistors.
Claims30
An amplifier circuit comprising:
- one or more amplifier stages, each of the one or more amplifier stages including a complementary transistor configuration, comprising:
- an NMOS transistor having a gate terminal electrically coupled to an input node configured to receive an input signal, a source terminal electrically coupled to ground, and a drain terminal electrically coupled to a first supply voltage through a first inductive impedance element;
- and
- a PMOS transistor having a gate terminal electrically coupled to the input node, a source terminal electrically coupled to a second supply voltage, and a drain terminal electrically coupled to ground through a second inductive impedance element, the NMOS transistor electrically coupled in parallel to the PMOS transistor;
- and
- an output amplifier stage electrically coupled to an output of the one or more amplifier stages, the output amplifier stage including a non-complementary transistor configuration comprising one or more NMOS transistors or PMOS transistors.
An amplifier circuit comprising:
- a first amplifier stage comprising a first path electrically coupled to one or more input nodes and a second path electrically coupled to the one or more input nodes, the first amplifier stage comprising one or more first PMOS transistors in the first path and one or more first NMOS transistors in the second path;
- a second amplifier stage comprising a first path electrically coupled to the first path of the first amplifier stage and comprising one or more second NMOS transistors in the first path, the second amplifier stage comprising a second path electrically coupled to the second path of the first amplifier stage and comprising one or more second PMOS transistors in the second path;
- an output amplifier stage electrically coupled to the second amplifier stage and further electrically coupled to both the first path and the second path to form a common path for the output amplifier stage, the output amplifier stage comprising a non-complementary transistor configuration.
A method for amplifying a signal in an amplifier circuit, the method comprising:
- amplifying the signal using a first amplifier stage having a first path electrically coupled to one or more input nodes and a second path electrically coupled to the one or more input nodes, the first amplifier stage comprising one or more first PMOS transistors in the first path and one or more first NMOS transistors in the second path;
- amplifying the signal using a second amplifier stage having a first path electrically coupled to the first path of the first amplifier stage and comprising one or more second NMOS transistors in the first path, the second amplifier stage having a second path electrically coupled to the second path of the first amplifier stage and comprising one or more second PMOS transistors in the second path;
- amplifying the signal using an output amplifier stage electrically coupled to the second amplifier stage and further electrically coupled to both the first path and the second path of the second amplifier stage to form a common path for the output amplifier stage, the output amplifier stage comprising a non-complementary transistor configuration.
Dependencies are inferred from the claim text.