Technical data • Complete system
26
Power Panel 500 user's manual V1.40
2.3 Power management
2.3.1 Supply voltage block diagram
The following block diagram illustrates the simplified structure of the supply voltage for system units.
24 V
15 V
Supply voltage
+24 VDC
Capacitors
(for min. 10 ms)
3V3 standby
3V3
3V3
5 V
15 V
5 V
15 V
Power button on
5 V standby
electrically
isolated
Figure 4: Supply voltage for system units
Description
15 V is generated from the supply voltage using a DC-to-DC converter. This electrically isolated 15 V supplies
additional DC-to-DC converters that generate the remaining voltage.
After the system is turned on (e.g. using the power button), the 3V3 and 5 V voltages are active on the system.
