Beckmann Egle MT 20x2 Handmatig - Pagina 10

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MT 20x2/40x2

Power Supply Options

5V (standard)
•
J1 is bridged
•
J2 is bridged
•
no voltage stabilizer
+9-15V with voltage stabilizer 7805
•
J1 is bridged
•
J2 is open
•
Solder voltage stabilizer, watch
polarity and add:
F1
V1
C5,C6
C9
U7
Warning: if LCDs with backlight are
used, dissipation of voltage stabilizer
must be checked !
Dissipation of 2W will already occur at
12V operating voltage and 300mA
consumption !
+18-36V with DC/DC-Converter
• J1 is OPEN
(for galvanic separation)
• J1 is bridged
(for shared GND)
• J2 is open
• add:
F1
V1
C5,C6
C9
G1
Pin assignment DC/DC converter
Pin
1,22,23,24
2,3,12,13
4-8
17-21
9
10,15,16
11,14
Copyright BECKMANN+EGLE GmbH, all rights reserved.
Fuse
Polyswitch 1,1A
Diode
ICTE36
Capacitor
100nF
Capacitor
47uF/10V
Voltage
LM7805
stabilizer
Fuse
Polyswitch 1,1A
Diode
ICTE36
Capacitor
100nF
Capacitor
47uF/10V
DC/DC-
TRACO 3-2411
converter
or similar
Assignment
Vin +
Vin -
(not available)
not assigned
Vout -
Vout +
Page 10
J1
J2
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