Recent content by PhysicsRolla

Very interesting. In the datasheet it shows that the peak current is 900mA, does that mean that 700mA is already with the safety? With a constant current driver, does it mean the voltage will automatically adjust to its optimal levels? Can i measure the voltage drop exactly when i turn on the...

LED driver 100w 4.3amp 24v(11$) LED constant current driver 700mA DC6-50v 35w(9$) LEDs: 700ma 2.0-2.4v 3.0-3.4v 3.6-4.0v using the first driver i could divide 4.3amps into 6 parallel circuits of 716mA and drive 12 LEDs at 2.0v at one circuit. Is this correct? Do i calculate the amount of LEDs...

i think i misuderstood. dedicated you meant specifically designed for LEDs? :)o the 640 to 660 does it depend on a batch made? some LEDs will draw 3volts and some 3.4v?

there definitely will be a heatsink So the 640 to 660 it merely depends on a batch made? so some LEDs will draw 3volts and some 3.4v? dedicated supply could you please write me a few words on how it works? does it choose the needed voltage itself? It seems like a good idea if i do not have to...

SO. There are two ways to do it: i got 14 LEDs(x3.4v=47.6volts) in series my power supply is 48volts. target wavelength is 660nm 1. choose the current through it by putting a resistor in series with it and then varying the supply voltage - how do i vary a supply voltage if i got 14 of them...

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Hello I am trying to design a precise circuit for LEDs. I have a datasheet from a manufacturer and it says an LED is capable of running 3.0v at 640nm and 3.4v at 660nm. Is there a way to tailor the power (voltage) so that the LED will run exactly or at least approximately at 3.0v or 3.4v...

will 3mm of acrylic plastic effect the magnetic field of Neodymium Magnet disc 2 inches diameter and 1 inches thick?

Thank you for the welcome, i always wanted to join the physics forum, i finally had a reason to do it. I sincerely thank you for your answer. What is the thickness of plastic that will effect the field of the magnet? It is a disc 2 inches diameter and 1 inch thick.

Hello I am building a casing for Neodymium Magnet. I don't want to shield the power of the magnet in any way, and I want the casing to be strong. What is the best material that i can use? It also has to be transperant. Will plastic effect the magnetic field and by how much. Will the...