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To begin testing, input a square wave with a fre-
quency of 100 Hz to 1 kHz, or a squared pulse at a
low level (typically 0.25 to 2.0 volts). A limited-rise-
time, repetitive pulse of low duty cycle is preferred.
Observe the output current through a current
monitor or current probe. Look for clean transition
edges. The presence of ringing or rounding on the
6.3 Driving Reactive Loads
Like all switching amplifiers, 8302 amplifiers are
able to reuse the energy returned from reactive
loads. Unlike purely resistive loads, loads with
some reactance (either capacitive or inductive) will
store energy during part of a cycle, and then re-
lease some of this energy back later. This energy
is transferred back to the load through the ampli-
fier's power supply. This allow the amplifier to
deliver continuous apparent power that is up to five
times the rated power of the amplifier when driving
reactive loads.
6.4 8302 Multi-amp Systems
The 8302 amplifier may be used with one other
8302 amplifier in either a Parallel or a Push/Pull
(Series) configuration. The Parallel configuration
will approximately double the continuous current
output to 120 Arms, while the Push/Pull configura-
tion will approximately double the voltage avail-
able from a single 8302 amplifier to 280 Vrms (see
Figure 6.6).
20
Figure 6.5 – Compensation Effects on Waveform
Information subject to change
8302 OPERATOR'S MANUAL – SECTION 6
transition edges indicates compensation problems.
(See Figure 6.5.)
If a change in compensation is necessary, please
contact AE Techron Technical Support for as-
sistance. DO NOT operate your amplifier in Con-
trolled Current mode without proper compensation.
While it is possible to operate a multi-amp system
in either Controlled Voltage or Controlled Current
modes of operation, multi-amp operation in Con-
trolled Current mode requires additional configura-
tion of the equipment. Please contact AE Techron
Tech Support for assistance with configuring a
multi-amp system for Controlled Current operation.
For routine, Controlled-Voltage applications,
Parallel and Push/Pull amplifier systems can be
configured using standard 8302 amplifiers and the
following accessory available from AE Techron:
8000 Series Multiamp Kit (part # 69-8005462).
Please contact AE Techron's Sales Department
for more information.
CONFIGURATION
Two 8302 in Parallel
Configuration
Two 8302 in Push/Pull
Configuration
Figure 6.6 – Typical Output Levels
for 8302 Multiamp Systems
CONTINUOUS OUTPUT
(100% Duty Cycle)
140 Vrms / 130 Arms
280 Vrms / 65 Arms
96-8006123_11-03-2021
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