| 摘要 |
The amplifier has an amplification unit (Q1), a configurable load circuit (M1,M2) having an inductive element (L2) and capable of presenting two different configurations having respectively, two different impedance values, and a controllable switch unit (Q2,Q3) connected between the amplification unit and the load circuit for selecting one or the other of the two configurations of the load circuit. The load circuit has two load transistors with insulated field grid effect (M1,M2), connected in series and functioning as a triode, the inductive element being connected in parallel on the pair of load transistors between a feed terminal and the switching circuit. |
