At 07:09 PM 8/15/2003 -0500, Charles Craft wrote:

>There's an issue with linear regulators when the output voltage
>is higher than the input voltage. You might want to look at
>adding diodes around the linears to discharge the output caps.

There's no "issue", they don't go there.
You can't get 24V output from 15V input, on a linear.

You need a switching boost or flyback regulator to get there.

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