HP 9050 CE Handbook page 58

9000 series 500
Table of Contents

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1.0
~
PFW
CIRCUIT
PFW
\0
0
<.n
0
0
0;.
to
+5V
@
POWER
+5V
~
ENERGY
SUPPLY
POWER
1
STORAGE AND
CORD
INPUT
AC VOLTAGE
HALF BRIDGE
CIRCUITS
I
r
SWITCHING
19V
POWER
SUPPLY
+19V
-
P:ER
if
b
-12V
SUPPLY
POWER
~
SUPPLY
-12V
-4-12V
+19V
REF
-..
+12V
PULSE WIDTH
MODULATOR
f+-
VOLTAGE
. .
POWER
~
+12V
SUPPLY
r--+
SUPPLY
i
i
+5V
!;l
FEEDBACK
0
REMOTE
~
POWER OFF
lURN OFF
FAULT
PRIMARY
DETECTION
PPON
CURRENT
PPON
SENSING
i i i
~
;Q
+5V
-12V
+12V
CI
TEMPERATURE
TO STACK POWER SUPPLY
!:l
LINE SENSING
RESET
CRKTS

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