Information subject to change
97-7796264_09-04-2020
7548/7794/7796/7796HC OPERATOR’S MANUAL – SECTION 5
30
After final adjustments have been made to the
circuit, the final waveform for your planned appli
-
cation should be tested to confirm the amplifier’s
compensation setting.
NOTE:
• If possible, use 1% metal film resistors. AE
Techron discourages installation of potentiome
-
ters in the resistor location of the compensation
circuit because this can decrease stability and
may increase inductance.
• The parallel capacitor in the RC network serves
to increase stability but can be removed, if it is
not required for system stability. If the parallel
capacitor is used, it will usually decrease the
value of resistance needed.
•
In multiple amplifier systems, expect to decrease
the value of R63 in series systems by 1/2.
5.3
Multi-amplifier Systems
The 7548, 7794, 7796 or 7796HC amplifier may be
used with other same-model amplifiers to increase
voltage or current. Because the internal circuitry of
the amplifier is not connected to chassis ground,
these amplifiers are well suited for use in series or
parallel with other amplifiers of the same model.
Up to three 7548, 7794, 7796 or 7796HC ampli
-
fiers may be configured in series, and up to four
may be configured in parallel. Configurations with
more amplifiers may be possible, depending on
the application. Please contact AE Techron
Ap-
plication Support
for information 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 7000-Series ampli
-
fiers to be configured as a series output system to
increase the available output voltage to the load.
The SIM-BNC-OPTOC kit also includes a BNC
connector safety cover.
The SIM-BNC-OPTOC module is required for all
Series configurations and should be used in con
-
junction with the DB9M CABLE (see below).
DB9M CABLE
– The DB9M (OPTOC) CABLE is a
high-voltage Interlock cable that provides superior
insulation for multi-amp series systems running
high-voltage applications.
The DB9M CABLE is required for all Series con
-
figurations and should be used in conjunction with
the SIM-BNC-OPTOC module (see above)
BAL RES KIT
– Three types available:
7224 BAL RES KIT, 7548 BAL RES KIT and
7794/7796/7796HC BAL RES KIT. Ballast resistors
are required for all Parallel configurations. The bal
-
last resistor kits include one ballast resistor (two in
the 7794/7796/7796HC kit) with connection termi
-
nals and mounting hardware. The 7224 BAL RES
KIT also contains the shunt required to defeat the
amplifier’s external level control.
PARALLEL WIRING KITS
– Six types available:
7224/7226 2-AMP, 7548/7794/7796/7796HC
2-AMP, 7224/7226 3-AMP, 7548/7794/7796/
7796HC 3-AMP, 7224/7226 4-AMP, and 7548/
7794/77967796HC 4-AMP. Parallel wiring kits in
-
clude the DB-25 Interlock cable for system commu-
nication, BNC T-connectors and BNC patch cables
for wiring parallel inputs through the BNC input
connectors, and the output wiring for connecting
system amplifiers to the load. The kits also include
the wire(s) needed for wiring the parallel inputs
through the Removable Barrier Block (WECO) con
-
nectors and the .input terminators required during
system setup. Parallel wiring kits are recommended
for all Parallel configurations.
To download the AE Techron
7000-Series Multi-
Amp Configuration Guide
or for additional
information, visit the AE Techron website at
www.
aetechron.com.
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