.:madworm:.'s photos with the keyword: bypassing

What? It works now ;-)

Supply voltage ripple with 220µF

Supply voltage ripple

23 Apr 2011 110
All three LED boards connected to the supply voltage bus. Each board does PWM and there's a magic frequency that creates a noticeable (audible + visible) beat-note. Adding some capacitance helps. Should have been on the PCBs, but it might have worked without it.

Supply voltage ripple with 2200µF

Big is beautiful

The Tower of Power

11 May 2011 97
...not the 'Hour of P...' ! This will kill most of the noise on the supply lines of my current LED illumination project.

Kitchen Lights - capacitor addon

25 Apr 2011 123
I had to find out the hard way that my Kitchen Lights boards lack a lot of smoothing capacitance on the LED driver supply lines. Therefore I made this board, which just attaches to the bus in between the main PCBs and should take care of the problem. A lot later I realized that one layer of it it looks somewhat like a happy face ;-)