Tektronix PS 5010 - Page 219

A1 3 LOGIC SUPPLY BLOCK DIAGRAM
HA 1 NFRAME +8V
I
AND
I 1 CONTROL
CURRENT ERROR
)
LOGIC SCALED
CURRENT
R CURRENT SENSE
SCALED
I > MEASUREMENT
I REFERENCE
LOGIC SUPPLY
11 KY REAR ,
I
PANEL
CP 1
INPUT
DATA
BOARD
SHIFT REGISTERS
LOOP BALANCE
STATUS COMPARATORS
t-
FOLDBACK
I LIMIT CIRCUIT I
VOLTAGE ERROR
AMPL
IF 1 ER
I +
LOGIC
VOLTAGE DAC
0-1.0v
0
I
b FRONT
PANEL