JPS5959020U - power amplifier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

1 and 12 are circuit diagrams showing configuration examples of the output circuit in a conventional power amplifier, FIG. 3 is a waveform diagram for explaining the operation of the output circuit shown in FIG. 1, and FIG. A circuit diagram showing the configuration of the first embodiment of the invention; FIG. 5 is a characteristic diagram of transistors 1 and 4 for explaining the operation of the embodiment;
6A to 6C are waveform diagrams for explaining the operation of the same embodiment, FIG. 7 is a circuit diagram showing the configuration of the second embodiment of this invention, and FIG. 8 is the first embodiment. FIG. 9 is a circuit diagram of a specific circuit of the second embodiment.

Claims (1)

[Scope of utility model registration request] The cascade-connected first and second power amplification elements of the same conductivity and the cascade-connected third and fourth power amplification elements of opposite conductivity to the first and second amplification elements are combined into a single unit. In a power amplifier having an output circuit configured by connecting endpoints, between a connection point between the first and second power amplification elements and a connection point between the third and fourth power amplification elements. A power amplifier characterized by being provided with a current bypass circuit.