Atec AE-Techron-7782 User Manual

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7782 and 7782HC
SPECIFICATION SHEET
0
20
40
60
80
100
0 50 100 150
Volts RMS
Frequency (kHz)
7782 Voltage Potential
8 ohms
The AE Techron 7782 is a 3.3 kW power amplifier that has a DC to 50kHz small signal band-width, 150Vpk, and up to 150Apk power. The 7782 is the original member of the 7000 series, offered now as a remanufactured product; it offers a balance of great value, reliability and strong performance.
The 7782 works best into loads of 2 ohms or less. A single 7782 can provide 40mSec bursts up to 150Apk. For greater voltage or current, units can be combined in parallel or series to create arrays of amplifiers capable of pulses in excess of 500Vpk and 600Apk.
The 7782 can operate in either voltage or current operation modes. It is useful
for a wide variety of EMC power susceptibility tests, including MIL STD­461 and DO-160. The 7782 is also typically used as a gradient amplifier in small bore, high-gain MRI systems of up to 150Apk per axis.
Performance
Maximum Continuous Output Power:
Features
Over 3,300 watts RMS into a 2-ohm load. 40 mSec pulses of up to 150 amperes peak into a 1-ohm load. System output of 500 volts and 200 amperes maximum are
possible with multiple, interconnected amplifiers.
Frequency bandwidth of DC to 50 kHz at rated power into 8
ohms; DC to 100 kHz at reduced power.
Rugged chassis for stand-alone or rack mounted operation. No
additional power supplies are required.
Protection circuitry protects against input overloads, improper
output connection (including shorted and improper loads), over­temperature, over-current, and supply voltages that are too high or low.
Optional “P” versions offer precision control of output offset, DC
drift and gain linearity.
Shipped ready to operate from 208-volt (±10%) three-phase AC
mains. Operation from 400-volt (±10%) AC mains is available on request.
3305 watts RMS
Output Offset: 7782/7782HC: Less than 5 mV, field
adjustable to less than 1 mV 7782P/7782HC-P: Less than 200 V,
field adjustable to less than 100 V; adjustment via 20-turn precision trim control; DC offset adjustment range is ±10 mV with about 0.9 mV per turn
7782 and 7782HC Datasheet Information subject to change. 3/12/12
AC Specifications
7782HC
PEAK OUTPUT
RMS OUTPUT
40mSec Pulse,
20% Duty Cycle
5 Minute,
100% Duty Cycle
5 Minute,
100% Duty Cycle
Ohms
Volts
Amps
Volts
Amps
Volts
Amps
1
56
56
55
55
39
39
0.5
42
84
41
82
29
58
0.1
15
150
7782 DC Power Over Time Summary
Time in Minutes
Impedance
Volts
Amps
2
1
50
50 2 0.5
30
60
1.5
0.27
19
75 5 1
40
40 5 2
84
42
Continuous
2
42
21
Output Offset Current:
AC Specifications
7782
PEAK OUTPUT
RMS OUTPUT
5 Minute,
100% Duty Cycle
1 Hour,
100% Duty Cycle
5 Minute,
100% Duty Cycle
1 Hour,
100% Duty Cycle
Ohms
Volts
Amps
Volts
Amps
Volts
Amps
Volts
Amps
Watts 4 120
30
120
30
85
21
85
21
1799 2 120
60
115
58
85
42
81
41
3305 1 80
80
68
68
57
57
48
48
2311
0.5
46
92
44
88
33
65
31
62
1935
-5
-4
-3
-2
-1
0
1
0 20 40 60 80 100 120
dB
Frequency in kHz
7782 Frequency Response
8 ohm 1 watt
Less than 10 milliamperes DC
DC Drift: 7782/7782HC: ±1.5 mV 7782P/7782HC-P: ± 200 µV (from
cold to maximum operating temperature); ±75 µV (after 20 minutes of operation)
7782P/7782HC-P Gain Linearity (over input signal, from 0.2 V to 5 V):
DC: 0.0125% AC: 0.030%
Input Characteristics
Balanced with Ground:
Three terminal barrier block connector 20k ohm differential
Gain: Voltage Mode: 20 volts/volt Current Mode: 20 amperes/volt
Residual Noise:
Less than 1 millivolt RMS
Slew Rate:
40 volts per microsecond
Display, Control, Status
Front Panel LED Displays indicate:
Ready, Standby, High AC Mains, High Temperature, Signal Overload, and Fault conditions in the output stage
Slide Switches for:
Run/Standby, LED Indicator Reset
7782and 7782HC Datasheet Information subject to change. 3/12/12
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