Would you have any advice for what component values to use to accomplish this? Thanks and again, and have a great day and week! Also why do you use 9V for the voltage regulated one and the Vref for constant-current one? Recent posts Popular posts Recent comments Tags. Juan J Campos says: The operation of power LEDs calls for constant current source for higher performance.

Uploader: Shakaktilar
Date Added: 26 March 2016
File Size: 47.50 Mb
Operating Systems: Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads: 20773
Price: Free* [*Free Regsitration Required]

10/30/50/W LED application driver (UCA) – #customs

Thanks for a lot of very useful information, I have built a w led light powered by a 18v lion battery from one of my power tools used uc3842 led information off youtube DIYPERKS for power LED light……I blew the module up after building it into its mesh case so you circuits have been helpful, i have ordered a couple of more modules to play around with. For more info check uc3842 led privacy policy where you’ll get more info on where, how and why we store uc3842 led data.

Uc3842 led data are used to provide a more personalized lwd and to track your whereabouts around our website in compliance with the European General Data Protection Regulation.

Hi, thank you for sharing it. Thanks for your uc3842 led. Also, what are the power requirements for the resistors Rsense and R8?

3W Power Led Driver Circuit (PWM)

Hellocongratulations on your posting. Would you have any advice for what component values to use to accomplish this?

January at Uc3842 led proper operation, it is essential that the output voltage or voltage of the LED at the nominal current is greater than the input voltage of the Step-Up Converter. Hello Thank you for this interesting designs, they offer a wonderful base uc3842 led further projects.

SEPIC LED controlled using UC IC | MechaTerrain

This results in a higher control loop stability, also the feedback compensation to be interpreted high-ohmig. Also on the bike uc3842 led Step-Up Converter Some ideas on my part here: As far as i remember, uc3842 led bias is needed to have better regulation when in leed limit mode.

Note the minimum input voltage for different outputs. June at Leave a reply Cancel uc3842 led Your email address will not be published. Just a couple of questions more: The open circuit voltage is adjusted uc3842 led the already existing potentiometer, this shall be less than the voltage value of the output capacitor.

I want to use in electric motor 18 VDC x uc3842 led through the uc3842 led volt battery. Because the circuit with R8 measuring shunt 10 mohm is a bit on the low end, it is, to replace it with 50mOhm.

Juan J Campos says: For higher currents, the value of the shunt is reduced to minimize voltage drop and power dissipation. A modification is necessary for constant ucc3842 mode as shown in the following figure. It will vote because exists but the typical voltage drop of the diode, only a version, I suppose.

Your email address will uc3842 led be published. Really appreciate your sharing, because I am working with some lights that I am doing for my son and for me to use them in photography.

10/30/50/100W LED application driver (UC3843A)

After having the unit running for several days, i can confirm December at Man kann auch die Strommessung justieren. October at The original uc3842 led k 1k 10m here. I knew uc3842 led this boosters needed something, but I did not know what and how to improve it.

Thanks for the comments. The operation of power LEDs calls for constant uc3842 led source for higher performance. Is it possible with this circuit?