97-2105006_4-2-15
Information subject to change
19
2105 OPERATOR’S MANUAL –
SECTION 5
In Controlled-Current Mode, the load is part of the amplifier circuit, and the relationship of the
load to the amplifier is critical. For proper and safe operation in Controlled-Current mode, you
must obverve the following guidelines:
1.
Properly attach a load before operating the amplifier.
Use only the Output and Sampled
Common terminals. DO NOT use the Common terminal.
2.
DO NOT use a blocking capacitor.
The load must have a DC path.
3.
Never leave the load open.
If you feel the load must be fused, which could lead to a poten-
tial open circuit, please contact AE Techron Application Engineering department.
4.
Check to make sure the load has some inductive component.
5.
Provide appropriate Compensation for the load.
6.
Turn of the amplifier immediately if oscillation occurs.
Failure to follow these guidelines may result in damage to the amplifier
or load.
CAUTION
5.2.3 Controlled Voltage or Controlled
Current Setting
To allow the 2105 amplifier’s output voltage to be
controlled by its input voltage signal (
CV mode
),
place
Jumper J4
in the
RIGHT
position (right pair
of pins). To allow the 2105 amplifier’s output cur
-
rent to be controlled by its input voltage signal (
CC
mode
), place J
umper J4
in the
LEFT
position (left
pair of pins). See
Figure 5.5.
For more informa-
tion on Controlled-Current operation, see the
“Ap-
plications”
section of this manual.
5.2.4 Compensation Setting (applies
to Controlled Current operation
only)
When the 2105 amplifier is used in Controlled Cur
-
rent (CC) mode, the current control loop is tuned
with one of two available RC networks: CC1 (R63
and C16) or CC2 (R82 and C25). Place
Jumper
J5
in the
UP
position to select the
CC1
network
(factory default). Place
Jumper J5
in the
DOWN
position to select the
CC2
network. See
Figure
5.6.
For more information on Controlled-Current
operation, see the
“Applications”
section of this
manual.
Figure 5.5 – Controlled-Voltage/
Controlled-Current Mode Setting
Figure 5.6 – Compensation Setting
