97-2105006_4-2-15
Information subject to change
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2105 OPERATOR’S MANUAL –
SECTION 6
6.3
Multi-amplifier Systems
The 2105 amplifier may be used with other same-
model amplifiers to increase voltage or current.
Because the internal circuitry of a 2105 amplifier
is not connected to chassis ground, the amplifier
is well suited for use in series or parallel with other
amplifiers of the same model.
Up to three 2105 amplifiers may be configured in
series, and up to four may be configured in paral
-
lel. Configurations with more amplifiers may be
possible, depending on the application. Please
contact AE Techron
Application Support
for infor-
mation on these more complex multi-amp systems.
For routine, controlled-voltage applications ,
Series or Parallel amplifier systems can be config
-
ured using the following accessories available from
AE Techron:
SIM-OPTOC
– The SIM-BNC-OPTOC Specialized
Input Module allows multiple 2100-Series ampli-
fiers to be configured as a series output system to
increase the available output voltage to the load.
Figure 6.14 – Remote Current Monitoring,
Alternate Method
Remote Monitoring of Current Output -
Alternate Method
Purpose:
Use a voltage meter to monitor output
current when output is not balanced.
Method:
Connect a voltage meter to monitor
the output current being produced by the ampli
-
fier. Connect across PIN 6 (IMON+) and PIN 19
(IMON-). See
Figure 6.14.
Signal Type:
AC
Level when Asserted:
2105: 2.5A/V; 2110/2120:
10A/V
Level when Deasserted:
0V
CAUTION:
To avoid ground loops, isolation from
ground must be provided. Use of a differential
probe is recommended.
Blanking Circuit Activation
Purpose:
Activate the blanking circuit that shuts
down the amplifier output stage in less than 10 µs.
Method:
Build a switchable circuit using an exter
-
nal, isolated 5V power supply that can apply a +5V
signal to PIN 9. Connect across PIN 9 (Blanking)
and PIN 10 (Sampled Common). See
Figure 6.15.
Signal Type:
DC
Level when Asserted:
3-5 Vdc
Level when Deasserted:
0-1 Vdc
Figure 6.15 – Blanking Activation
