www.pulsar.pl PSDCB09125C
3
1. Technical description.
1.1 General description.
A buffer PSU is intended for an uninterrupted supply to devices requiring stabilised voltage of
12V DC
(+/-15%).
The PSU provides voltage of
U=13,8V DC.
Current efficiency:
1. Output current 9x0,5A + 1A battery charge
2. Output current 9x0,5A + 2A battery charge
Total device c battery: 7A max
*
.
In case of power decay, a battery back-up is activated immediately. The PSU is constructed based on the switch
mode PSU, with high energy efficiency. The PSU is housed in a metal enclosure (colour RAL 9003) which can
accommodate a 17Ah/12V battery. A micro switch indicates door opening (front cover).
1.2 Block diagram (fig.1)
Fig.1. The block diagram of the PSU.
1.3 Description of PSU components.
Table 1. Elements and connectors of the fuse block (tab.1, fig.2).
Element
[fig. 2]
Description
[1]
F1
÷F9
glass fuses PTC
[2]
LED
L1
÷ L9
signaling presence of output voltage DC
[3]
power supply output
AUX1
÷AUX9,
shared terminal
COM (-)
Fig. 2. The view of the fuse block LB9.
*
Refer to chart 1
