That don't work out, push 300ma into 18 led's, now switch to 9 leds and the driver gets the correct voltage at half the ma. I thought the same, run the voltage up until 300ma was pulled and quit. I got to do some more simple test, this is to easy.It raises the output voltage until it senses the output is at 300mA.
There is probably a million ways to do that...well maybe less.
Yes on the cc of 300ma, but that changes with different strings, how is it figuring out the correct amp draw.Hi doc,
probably a constant current source of 300mA.
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18 LEDs is about 54V, 9 LEDs is 27V. The correct voltage is between 25V and 90V so they are both the "correct" voltage.That don't work out, push 300ma into 18 led's, now switch to 9 leds and the driver gets the correct voltage at half the ma. I thought the same, run the voltage up until 300ma was pulled and quit. I got to do some more simple test, this is to easy.
As stated in post #4I have a universal led driver, no mater what string of led's I connect to, it sets itself to the correct voltage and ma draw. Just trying to figure out how
That's not really possible.I have a universal led driver, no mater what string of led's I connect to, it sets itself to the correct voltage and ma draw.
As long as the LED string has a operating voltage in the range of "25 to 90 volts" it will work.That's not really possible.
The problem is, if the LEDs need 30mA each, then 10 will work properly and 1 will let out the magic smoke.As long as the LED string has a operating voltage in the range of "25 to 90 volts" it will work.
I have built drivers that will produce "300mA" down to 0V.
Test you assertion. Hook it up to a single 20mA LED. See how long it lasts.I have a universal led driver, no mater what string of led's I connect to, it sets itself to the correct voltage and ma draw. Just trying to figure out how
Then that's not a "string" is it?The problem is, if the LEDs need 30mA each, then 10 will work properly and 1 will let out the magic smoke.
For very large values of 0, it is possible.Then that's not a "string" is it?
But it is impossible to get 300mA at 0 volts.
He stated it adjusted both voltage and current, which is not feasible in my book.As long as the LED string has a operating voltage in the range of "25 to 90 volts" it will work.
Would that be like a normally distributed random variable with a mean 0 and a large variance?For very large values of 0, it is possible.