Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 VOLT INPUT – 15 WATT
SIMPLIFIED SCHEMATIC DIAGRAMS
5 µH
Positive
Input
Positive
Output
2 µF
I
D
PWM
Controller
FET
Driver
Limit
Inhibit
Ref.
I
C
Output
Common
Input
Common
FIGURE 2: MHF+ SINGLE OUTPUT BLOCK DIAGRAM
0°
+5 OUTPUT
POSITIVE
INPUT
FEEDBACK ISOLATOR
PWM CM
CONTROLLER
OUTPUT
COMMON
INPUT
COMMON
+ AUX.
OUTPUT
FEEDBACK ISOLATOR
SYNC
PWM CM
CONTROLLER
180°
–AUX.
OUTPUT
FIGURE 1: MHF+ TRIPLE OUTPUT BLOCK DIAGRAM
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Rev K - 20060613