Piezo Amp HV Supply Component Update

• L1,2,3 changed to Wurth Elektronik 744773122 (22uH, 1A)
• D1,2 changed to Motorola 1N5819 (40V, 1A)
• 12V DC supplied by Tracopower TEN5-2412WI isolated DC-DC converter module
• LED to indicate when power has been applied to the DC-DC converter module

These changes have been made to reduce the layout size of the switchmode and to eliminate the need for a separate PCB for the isolated 12V supplies in the prototype rig. These changes have no (simulated) effect on the performance of the supply.

I'll post an updated schematic along with the PCB, once completed.