Adaptive-gain charge-pump technique drives white LEDs

Adaptive-gain charge-pump technique drives white LEDs

This article describes the creation of, and the advantages to using, an adaptive charge pump. The device in Figure 2 is based on an adaptive charge pump with gains of 1X and 1.5X. The input to the charge pump is connected to the Vsub IN pin, and the output is connected to the Vsub OUT pin. The charg...

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Veröffentlicht in:Electronic Design 2006-01, Vol.54 (2), p.60-60
1. Verfasser: Nurzad, Dario
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Sprache:eng
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Capacitors
Circuit design
Design and construction
Efficiency
Innovations
Light-emitting diodes
Production processes
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description This article describes the creation of, and the advantages to using, an adaptive charge pump. The device in Figure 2 is based on an adaptive charge pump with gains of 1X and 1.5X. The input to the charge pump is connected to the Vsub IN pin, and the output is connected to the Vsub OUT pin. The charge pump has both open- and closed-loop modes of operation. In open-loop mode, the voltage at Vsub OUT is equal to the gain times the voltage at the input.
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source Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Business Source Complete
subjects Capacitors
Circuit design
Design and construction
Efficiency
Innovations
Light-emitting diodes
Production processes
title Adaptive-gain charge-pump technique drives white LEDs
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