Power Supply for Active Ground Sound Solution
PSU12SA is a complete power supply unit with many features.
It provides power for DCN23 or DCN24 and a number of PA3CC or PA6CC or other high quality amplifier modules.
PSU12SA has separate linear regulated voltages of 3.3V, 5V and +/-11V to supply the DCN23 or DCN24.
An input sensing circuit keeps an eye on signal inputs at DCN23/24 to auto start the power amplifiers.
A switch selects between ON - STAND BY - AUTO SENSING to ease the use in daily life. If on or signal is
present this switches the transformer relay on. The transformer ramps up the 12 pieces low ESR capacitor bank
by soft start circuit limiting inrush current to about 7A. When ready, the power amplifiers are unmuted by
pullup to GND. There are two LEDs to indicate STAND BY or ON. PSU12SA will ensure enough resources for
the power amplifier modules to easily drive, even difficult speaker impedances.