Velleman-Kit K8050, Инструкция по сборке, Страница: 14 / 20

14
Usually the open-collector outputs are used for controlling relays
(like our card K6714, Fig 5.0).
Figure 4.0 shows how to connect eventual relays. Its advisable to
use a separate power supply for the relays, rather than to branch off
from the power supply of the receiver.
Usage and connection
17. Usage and connection
-
+
K8050
8
+
VCOM
13
15
14
12
11
9
10
5
6
7
3
4
+V
2
1
VB
GND
VA
MAINS
6
... 1
2
v/1
5
0
m
A
6
... 1
2
v/1
5
0
m
A
MAINS
6
... 1
2
v/1
5
0
m
A
FIG 4.0
K8050