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when it is operation there is a high pitched whine sound coming from the flex, is it repairable or is is broken?
thanks all,
stuart
thanks all,
stuart
Haha :crackup:hotglue the inductor It will get rid of it. I have had older video cards with chockes that squeeled when I overdrove them. A little hotglue over them and viola no more squeel.
Haha :crackup:
Inductors are known ti vibrate a lot and if they are not soldered well, theycan jump out of your laser punching a hole in your laser host and your wall.
They must be hotglued.
:crackup:
Just Kiddin', :wave: no offence!
But what do you mean by hotgluing it...
On what kind of logical principle does that work?
I was just kidding around, but asked seriously...:yabbem:
It dampens the vibration Big meanie face...lol
The driver could be doing something weird.it isnt with me i sent it off to morgan to build it before i sent it off to him i tried to build it and failed. when i connected the diode one of the leads came loose and LED'd my diode also after the lead broke away from the driver, it was momentarily operated without a load.
morgan is hearing the high pitched whine and the driver has LED'd two of his diodes.
stuart
No way a switching can cause some spikes that interfere with normal driver operation, that is what input capacitance is for.Well ..... it works at 1,6MHz ..... there's no way that you can hear 1,6MHz oscillation (except if your name is Clark Kent and you line in Metropolis )
Must be a secondary oscillation caused from some other thing ..... or you're using it for too high current, or, more probably, you're trying to use it with a BR diode that have too high VF (remember that these boost drivers have a maximum output of 5,5V stable, using them with diodes that have higher VF, they works out from their safety limits ..... sometimes they still work, sometimes not .....
Edit: yes, also bad switches and unsure contacts can be a problem, with flexdrive ..... using "scratcky" switches, you can easily cause spikes that can kill a LD .....
No way a switching can cause some spikes that interfere with normal driver operation, that is what input capacitance is for.
So Flex is with 1.6MHz switching also?
Weird.
See my theory of interference with Earth's magnetic field... Few posts up.
I don't get it.I dont think its with earths field it prolly just the ferrite core of the inductor.