AMPLIFIER, DRIVING METHOD FOR AMPLIFIER, AND ELECTRONIC CIRCUIT SYSTEM

摘要

An amplifier includes a variable shunt circuit including a first transistor group and a second transistor group. The first transistor group includes at least one transistor including a first terminal connected directly or indirectly to a voltage-current conversion circuit, a second terminal connected directly or indirectly to a load, and a third terminal connected directly or indirectly to a control circuit. The second transistor group includes at least one transistor including a first terminal connected directly or indirectly to the voltage-current conversion circuit, a second terminal connected directly or indirectly to a power source or a ground, and a third terminal connected directly or indirectly to the control circuit. The amplifier is configured to amplify the input signal under exclusive control from the control circuit on a pair of the at least one transistor of the first transistor group and the at least one transistor of the second transistor group.

主权项

1. An amplifier, comprising a variable shunt circuit including
a first transistor group, and a second transistor group provided correspondingly to the first transistor group, the first transistor group including at least one transistor that includes
a first terminal connected directly or indirectly to a voltage-current conversion circuit configured to perform a voltage-current conversion of an input signal,a second terminal connected directly or indirectly to a load, anda third terminal connected directly or indirectly to a control circuit, the second transistor group including at least one transistor that includes
a first terminal connected directly or indirectly to the voltage-current conversion circuit,a second terminal connected directly or indirectly to one of a power source and a ground, anda third terminal connected directly or indirectly to the control circuit, the amplifier being configured to amplify the input signal under exclusive control from the control circuit on a pair of the at least one transistor of the first transistor group and the at least one transistor of the second transistor group.