stl_jones@yahoo.com
New Member
I'm trying to pulse some LED's to the bass. I have got it working, but the LED's are only on for half the wave.
I am using this in a car so I only have one supply voltage. The sine wave coming out of the low-pass filter is riding on 4V with the negative alternation peaking at 0V and the positive alternation peaking at 8V.
I would like to rectify the negative alternation. I was looking online, and saw people suggesting using a precision rectifier. However, none of the ones I found have worked, and I'm not sure how to "set" the ground to 4V. Any help would be greatly appreciated.
I am using this in a car so I only have one supply voltage. The sine wave coming out of the low-pass filter is riding on 4V with the negative alternation peaking at 0V and the positive alternation peaking at 8V.
I would like to rectify the negative alternation. I was looking online, and saw people suggesting using a precision rectifier. However, none of the ones I found have worked, and I'm not sure how to "set" the ground to 4V. Any help would be greatly appreciated.