User guide

UG:115 vicorpower.com Applications Engineering: 800 927.9474 Page 18
10K
Signal Ground
AC Power OK
+5V
J3
2.49K
PN2222
Pin 4
Pin 6
Bus
Monitor
Figure 10.
AC OK
Auxiliary V
CC
+5 V/0.3 A (J3-5)
The V
CC
on J3-5 is an auxiliary 5 V regulated power source. It is +5 Vdc +/–5% with
respect to Signal Ground and can supply 300 mA maximum. It is short-circuit-proof, but
if shorted, all outputs will shut down through the Enable/Disable circuitry.
Single Output Power Supplies (Arrays)
Vicor’s standard configuration for single output power supplies is to set the le module
(as seen from looking at the power supply output) as the controlling module of the
array.
78M05
Auxiliary Vcc
J3-5
0.1 µF
Signal Ground
J3
J3-4
+5V/300 mA
Figure 11.
Auxiliary Vcc