KD494
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Hey all,
I have 7 analog channels each of which is going to be driving a 50mA peak signal through a load. The problem is I was planning on using a single ended supply to avoid an extra dual rail power supply. So the driver is powered by a 5V single supply and will be centered around the midpoint of 2.5V. Therefore the other side of the load will be connected to this 2.5V source to avoid a DC current through the load which is a coil I don't want to create a DC field. My problem is that I was originally planning on using a voltage rail splitter or linear regulator to provide this reference but I cant find a splitter than can provide that much current and my understanding is that a linear regulator can only source current not sink it.
If I want to stick with the 5V single supply is my only option to use a switching power supply to generate the 2.5V bias point?
Thanks in advance!
-Kevin
I have 7 analog channels each of which is going to be driving a 50mA peak signal through a load. The problem is I was planning on using a single ended supply to avoid an extra dual rail power supply. So the driver is powered by a 5V single supply and will be centered around the midpoint of 2.5V. Therefore the other side of the load will be connected to this 2.5V source to avoid a DC current through the load which is a coil I don't want to create a DC field. My problem is that I was originally planning on using a voltage rail splitter or linear regulator to provide this reference but I cant find a splitter than can provide that much current and my understanding is that a linear regulator can only source current not sink it.
If I want to stick with the 5V single supply is my only option to use a switching power supply to generate the 2.5V bias point?
Thanks in advance!
-Kevin