KEPCO BOP 5-20DL, Operator'S Manual

Page: 52 / 70

3-18
BOP 5-20DL 081915
3.5.4 USING THE BOP AS A CURRENT AMPLIFIER
See Figure 3-19 to configure the BOP as a current-stabilized bipolar amplifier.
See Figure 3-20 to drive output current using a bipolar signal voltage less than ±10V.
See Figure 3-21 to drive output current using a high impedance source.
FIGURE 3-19. BASIC PROGRAMMING CIRCUIT FOR BOP AS BIPOLAR CURRENT-
STABILIZED AMPLIFIER
FIGURE 3-20. PROGRAMMING CIRCUIT FOR DRIVING OUTPUT CURRENT WITH
BIPOLAR SIGNAL LESS THAN ±10V
BOP CURRENT
CONTROL CHANNEL
NOTES:
1. Set MODE Switch to CURRENT and CURRENT
CONTROL switch to OFF.
2. Local sensing shown. Remote sensing not
recommended for Current control.
3. For inductive loads in excess of 0.5mH, the BOP
output response may be optimized by placing a
capacitor across terminals (16) and (18) of the
Rear Programming Connector (
I
o COMP AMP).
I
o ZERO
POWER
STAGE
COMMON
ZERO
+
10K
PREAMP
"B"
-
2
19
I
o COMP
AMP
+
-
DRIVER
R
G
A
T
E
S
16 18
LOAD
COM
S
OUT
S
SIGNAL
GROUND
15
C
13
4
PART OF REAR PROGRAMMING CONNECTOR
+10V
BIPOLAR
PROGRAMMER
(EXTERNAL)
-10V
3043703
COM
CURRENT
PROGRAMMING
INPUT
C
28
22
OUT
+
10V
+
10V
CURRENT
CONTROL
ON
OFF
10K
10K
f
R
i
R
BOP CURRENT
CONTROL CHANNEL
NOTES:
1. Set MODE Switch to CURRENT and CURRENT
CONTROL switch to OFF.
2. Local sensing shown. Remote sensing not
recommended for Current control.
3. For inductive loads in excess of 0.5mH, the BOP
output response may be optimized by placing a
capacitor across terminals (16) and (18) of the
Rear Programming Connector (
I
o COMP AMP).
I
o ZERO
POWER
STAGE
COMMON
ZERO
+
PREAMP
"B"
-
2
19
I
o COMP
AMP
+
-
DRIVER
R
G
A
T
E
S
16 18
LOAD
COM
S
OUT
S
SIGNAL
GROUND
15
C
13
4
PART OF REAR PROGRAMMING CONNECTOR
OFF
10K
R 100K (EXT.)
10K
0 TO ±1 V
@
0.1mA
BIPOLAR
PROGRAMMER
(EXTERNAL)
3043704
COM
i
E
CURRENT
PROGRAMMING
INPUT
C
28
22
OUT
+
10V
+
10V
CURRENT
CONTROL
ON
10K
f
R i