3. Class D RF amplifier module
As previously mentioned, the RF amplification system of each amplifier block is made up of a large number of identical amplifier modules.
Amplifier modules can be made broadband, so they can be used on long- and medium-wave, at any frequency, without any adjustment.
These modules play an essential role in achieving performance, particularly in terms of emitter efficiency. For this reason, a typical detailed description is given in figure 4.
3.1 Power module description
The module is a standard Class D amplifier using H-bridge circuitry.
Class D is characterized by the use of transistors in switching mode. The two states of the regime are blocked transistors,...
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Class D RF amplifier module
Coupling amplifier modules
Bibliography
- LINGUET (L.), de BOISRIOU (P.) - Procédé et dispositif de modulation en amplitude d'un signal radiofréquence. - Brevet France, 93 06 420 du 28 mai 1993.
- GERFAULT (B.) - Amplificateur de puissance de type pont H et ses moyens de blocage et dispositifs amplificateur de puissance comportant de tels amplificateurs. - Brevet...
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