POWER AMPLIFIER SATURATION DETECTION

In a portable radio transceiver, a power amplifier system includes a saturation detector that detects power amplifier saturation in response to duty cycle of the amplifier transistor collector voltage waveform. The saturation detection output signal can be used by a power control circuit to back off...

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Bibliographische Detailangaben
Hauptverfasser:	Andrys, Paul Raymond, Gerard, Michael Lynn, Shie, Terrence John
Format:	Patent
Sprache:	eng
Schlagworte:	AMPLIFIERS BASIC ELECTRONIC CIRCUITRY CONTROL OF AMPLIFICATION ELECTRICITY INFORMATION STORAGE PHYSICS PULSE TECHNIQUE STATIC STORES
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Beschreibung
Zusammenfassung:	In a portable radio transceiver, a power amplifier system includes a saturation detector that detects power amplifier saturation in response to duty cycle of the amplifier transistor collector voltage waveform. The saturation detection output signal can be used by a power control circuit to back off or reduce the amplification level of the power amplifier to avoid power amplifier control loop saturation.