Designing drivers for multicolour LEDs

Designing drivers for multicolour LEDs

The current error-amplifier then compares this output with the output of the voltage-error amplifier, and thereby generates an error signal for the internal average-current control loop, That amplified error signal is compared with an internal oscillator ramp to generate the PWM signal (at DL, pin 3...

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Bibliographische Detailangaben
Veröffentlicht in:Electronics Weekly 2009-09 (2400), p.16
1. Verfasser: Baby, Anil
Format: Artikel
Sprache:eng
Schlagworte:
Color
Design engineering
Integrated circuits
Light emitting diodes
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Beschreibung
Zusammenfassung:The current error-amplifier then compares this output with the output of the voltage-error amplifier, and thereby generates an error signal for the internal average-current control loop, That amplified error signal is compared with an internal oscillator ramp to generate the PWM signal (at DL, pin 3) for driving mosfet Q2.
ISSN:0013-5224