VOLTAGE REGULATOR WITH DYNAMICALLY BOOSTED BIAS CURRENT

A voltage regulator with dynamically boosted bias current includes a pass device for providing current to a load; an error circuit responsive to a difference between a predetermined reference voltage and a function of the voltage on the load to produce an error signal, a driver circuit responsive to...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BARBER, THOMAS, J., JR, HO, STACY
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONTROLLING CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Beschreibung
Zusammenfassung:	A voltage regulator with dynamically boosted bias current includes a pass device for providing current to a load; an error circuit responsive to a difference between a predetermined reference voltage and a function of the voltage on the load to produce an error signal, a driver circuit responsive to the error signal for controlling the pass device to adjust the current to the load to reduce the error signal, the driver circuit including an amplifier responsive to the error signal for controlling the pass device, a bias current source for biasing the amplifier, a sensing circuit for sensing a portion of the error signal, a reference current source for providing a reference current, a second error circuit responsive to a difference between the portion of the error signal and the reference current to produce a second error current; and a boost circuit responsive to the second error signal to increase the bias current provided to the amplifier when the load demands more current.