PWM Constant Current Power LED Driver

| August 3, 2019 Updated
PWM Constant Current Power LED Driver

Power LED driver circuit based on LM393 op amp compared to other LED driver with PWM input is not working very well, but without a microcontroller PWM or PWM input can be made from other sources. There are three different power options power LED 1W 350mA, 700mA 3W power LED, power LED 5W power required by one of R2, R11 resistor values ​​are determined.

High energy efficiency switch mode converter. 5V-24V supply voltage range. . Cycle-by-cycle, real constant current circuit 1 adjustable output current maximum power output of 18W. (24v 3w LED module for working with) the current control potentiometer (with spacings of about 9%)

Output short circuit protection PWM input – including the Arduino can be controlled via external microprocessor. Compact design – 1 x 1.5 x 0.5 inches (excluding the pot shaft)

led-surucu-power-led-driver-circuit-schematic

led-switch-mode-buck-converter-constant-current-led-driver

Power LED driver circuit is used in the power MOSFET IRF 9024 or 2955 NTD irf3710 is not commercially available can be used instead.

Source: instructables.com/id/Poormans-Buck/ alternative link:

FILE DOWNLOAD LINK LIST (in TXT format): LINKS-19260.zip

Published: 2012/07/16 Tags: , ,



2 Comments “PWM Constant Current Power LED Driver

  1. gevvgevv Contributor

    Graphic LCD bmp2asm fastlcd Font Programs

    Prepare the Microcontrollers with LCD display application provides great convenience to the various imge converter programs
    . bmp format photos for graphic LCD PIC assembly (ASM) as a program that converts source code and Delphi 3 code. exe file there

    BMP to PIC ASM assembly (BMP2ASM)

    REPLY
  2. Elektronisch ProjekteElektronisch Projekte

    PWM Pulsweitenmodulation Konstantstrom-LED-Treiber

    Power-LED-Treiberschaltung basierend auf LM393 Operationsverstärker im Vergleich zu anderen LED-Treiber mit PWM-Eingang funktioniert nicht sehr gut, aber ohne einen Mikrocontroller PWM oder PWM-Eingang kann aus anderen Quellen gemacht werden. Es gibt drei verschiedene Power-Optionen Power-LED 1W 350mA, 700mA 3W Power-LED, Power-LED 5W Leistung von einem der R2 benötigt, R11 Widerstandswerte bestimmt werden.

    Schaltwandler mit hoher Energieeffizienz. 5V-24V Versorgungsspannungsbereich. . Zyklus für Zyklus, realer konstanter Stromkreis 1 justierbarer Ausgangsstrom maximale Leistungsabgabe von 18W. (24v 3w LED-Modul zum Arbeiten mit) dem Stromreglerpotentiometer (mit Abständen von ca. 9%)

    Ausgang Kurzschlussschutz PWM-Eingang – einschließlich der Arduino kann über externe Mikroprozessor gesteuert werden. Kompaktes Design – 1 x 1,5 x 0,5 Zoll (ohne Topfwelle)

    REPLY

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