CURRENT COMPARATOR AUTOMATIC OUTPUT CONTROL

A CIRCUIT FOR CONTROLLING THE OUTPUT LEVEL OF A POWER AMPLIFIER IS DISCLOSED. A CURRENT COMPARATOR (230) COMPARES A REFERENCE CURRENT WITH A SENSED CURRENT WHICH IS REPRESENTATIVE OF THE POWER AMPLIFIER CURRENT STATE. THE REFERENCE CURRENT IS USED NOT ONLY FOR COMPARISON WITH THE SENSED CURRENT BUT...

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Bibliographic Details
Main Authors CHEE SEONG POR, FUAD HAJI MOKHTAR
Format Patent
LanguageEnglish
Published 31.10.2003
Subjects
BASIC ELECTRONIC CIRCUITRY
CONTROL OF AMPLIFICATION
ELECTRICITY
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Summary:A CIRCUIT FOR CONTROLLING THE OUTPUT LEVEL OF A POWER AMPLIFIER IS DISCLOSED. A CURRENT COMPARATOR (230) COMPARES A REFERENCE CURRENT WITH A SENSED CURRENT WHICH IS REPRESENTATIVE OF THE POWER AMPLIFIER CURRENT STATE. THE REFERENCE CURRENT IS USED NOT ONLY FOR COMPARISON WITH THE SENSED CURRENT BUT ALSO FOR SETTING THE POWER AMPLIFIER (104). THE CURRENT COMPARATOR (230) PROVIDES AN OUTPUT, BASED ON THE COMPARISON, THAT IS COUPLED TO THE POWER AMPLIFIER SO THAT THE POWER AMPLIFIER CURRENT IS MAINTAINED AT AN OPTIMUM LEVEL FOR MINIMIZING TEMPERATURE DEPENDENT VARIATIONS AND SUBSTANTIALLY LEVELING THE POWER OF THE POWER AMPLIFIER.
Bibliography:Application Number: MY1919PI951670