32
AXOR Industries
Service Manual
Nano Mack
®
ver.1 rev.11/'19
2.7 Power & Backup common source
POWER & BACKUP SUPPLY from common source
POWER SOURCE
Nano Mack
C
D
RS
+Bkup (max 30V
DC
)
12÷30 V
DC
TWISTED
Lenght max 15cm
from
C
+ AT
- AT
AGND
0V
+V
F
2
F
1
C & RS are optional for case A.
To calculate the capacitor ( C ), resistor ( RS ) and diode ( D ) use the following formulas:
C (uF) ≥ In ( A ) * 20
I
RMS( 10 khz )
Capacitor ≥ In / 2
RS ( OHM ) ≥ 20 000 000 / C ( uF )
D ( I
F
) ≥
Ipeak ( A ) * 2
