siliconchip.com.au Australia’s electronics magazine May 2019 35
Fig.6: the power supply
board has a bridge rectifier
(D17-D20) plus five linear
regulators and powers all
the rest of the circuitry
from the 9V AC or 9-0-
9V AC fed to CON13. It
also routes all the signals
between the ADC, DAC and
PIC32 boards via CON14-
CON19.