Kontron CP383 - Manual (Page 53)

CP383 Configuration
ID 27784, Rev. 01 © 2004 Kontron Modular Computers GmbH Page 4 - 7
27784
.01.VC.040308/162543
P R E L I M I N A R Y
Figure 4-7: External Reset Connection for One Cluster
4.3.4 Connection of Inductive Loads
The outputs have internal clamping diodes for each channel, which are able to demagnetize
inductive loads.
The limitation is the peak power dissipation of the digital outputs at the front end. Where there
are large loads or if there is the possibility that additional loads require demagnetization simul-
taneously, external demagnetization circuits are required.
There are two possible topologies for the demagnetization versus ground or versus supply volt-
age.
Note ...
The voltage source for each cluster is an external supply (in the range +9.5V to
+35V DC). Therefore the GND reference for the digital output is the ground
potential of this external voltage supply.
Note ...
Individual outputs should not be cascaded as it cannot be guaranteed that
power sharing will be proportional, due to the transistor characteristics of each
HSD switch.
Note ..
For more detailed information about the external demagnetization circuits,
please refer to the L6376 data sheet referenced under chapter 1.8 Related Pub-
lications.
Ch 0
Ch 7
CP383
CON2
+
External
VCC
EXTGND
V
LOAD
LOAD
External GND
0
7
Supply Voltage
R Reset