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nigelwright7557 23rd November 2009 11:42 PM

Bargraph and clip LED's
I see very little of clip LED's and bargraphs on this audio group.

I would have thought a clip LED was vital if your speakers arent to suffer.

A bargraph top LED can also act as a clip LED.

Just finished a new design which uses a PIC microcontroller to read the output signal and convert it to a bargraph display. The PIC has A2D inputs so I can compare the output signal to the supply rail to get the correct ratio for the LED outputs. My clip LEd circuit uses a simple comparator taht turns on the LED as the output voltage approaches the rail, works a treat and with very few components.
A bargraph brings the amp to life.

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