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AE Techron 7118...
User-variable DC offset: ±20V or...

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AE Techron 7118 High-Speed AC/DC Amplifier With Precision DC Supply

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User-variable DC offset: ±20V or ±45V.
User-adjustable current limit: 1A to 25A.
Compact 9.5-inch width, 2U height; weighs only 20 lbs.
AC or DC coupled.
Four-quadrant operation.
AE Techron Tough: Protection from overtemperature, over-current, over/under supply voltages; will drive capacitive and inductive loads

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AE Techron 7118 High-Speed AC/DC Amplifier With Precision DC Supply
User-variable DC offset: ±20V or ±45V.
User-adjustable current limit: 1A to 25A.
Compact 9.5-inch width, 2U height; weighs only 20 lbs.
AC or DC coupled.
Four-quadrant operation.
AE Techron Tough: Protection from overtemperature, over-current, over/under supply voltages; will drive capacitive and inductive loads
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Operator's Manual

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Control Port Pinouts & Functions

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Data Sheet

Complete Technical Specifications

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Test Equipment Description

The AE Techron’s 7118 is a 425-VA, 4-quadrant, AC and DC amplifier that provides exceptional versatility and value. Compact size, user configurability, DC-Max™ topology, and AE Techron toughness make the AE Techron 7118 the ideal lab partner for automotive conducted immunity testing, PSRR testing, or any application where more voltage or current is needed than is available from the signal source.

AE Techron 7118 Compact Power

The AE Techron 7118 weighs just 20 pounds and fits into approximately one-half of a 2U rack space, but still can output up to 425 watts RMS continuous. This makes the 7118 a great choice when size or portability are important selection criteria.

AE Techron 7118 Versatile

Front-panel user controls give the AE Techron 7118 a wide range of possible uses; gain, maximum current, and DC offset can be fixed or infinetely varied. The choice of AC or DC coupling makes it suitable both for DC applications and for driving objects like coupling transformers or piezo elements that shouldn’t see DC. All controls can be turned off when only a durable, high-current amplifier or DC source is needed. Or each function can be individually enabled to provide the unique set of capabilities needed at the moment.

The AE Techron 7118 can produce a DC output without an input signal. DC output is independent of input signal and amplifier gain. This DC capability, when combined with an input signal from a function generator, creates a versatile DC source with high-speed ripple and dropout capabilities.

AE Techron 7118 DC-Max™

AE Techron 7118 is built with our new DC-Max topology. Amplifiers with DC-Max have long-term DC power that is more than 40% greater than traditional designs. This increased DC performance better matches the power requirements found in DC conducted immunity and PSRR testing.

AE Techron 7118 Toughness

The AE Techron 7118 is compact in size, but it is designed using the same conservative design rules and protection systems that have made AE Techron amplifiers the toughest audio bandwidth amplifiers available.

AE Techron 7118 Output

AC Output

Note: Testing performed into resistive loads as specified. Performance reported is typical into the specified load up to 20 kHz frequency levels. Performance may be affected when operating into highly reactive loads or above 20 kHz, reducing maximum voltage, current and power output.

AC Specifications – High Voltage Mode
Ohms	PEAK OUTPUT						RMS OUTPUT
	40mSec Pulse, 20% Duty Cycle		5 Min, 100% Duty Cycle		1 Hr, 100% Duty Cycle		5 Min, 100% Duty Cycle		1 Hr, 100% Duty Cycle
	Volts	Amps	Volts	Amps	Volts	Amps	Volts	Amps	Volts	Amps	Watts
Open	150.8	0.0	148.4	0.0	148.4	0.0	105	0.0	105	0.0	0
32	149.3	4.7	148.5	4.7	148.5	4.7	105	3.3	105	3.3	347
16	149.3	9.2	138.5	8.54	111.7	6.7	98	6.04	79	4.8	379
8	127.3	15.9	113.1	14.1	56.8	7.1	80	10	40.2	5	201

AC Specifications – High Current Mode
Ohms	PEAK OUTPUT						RMS OUTPUT
	40mSec Pulse, 20% Duty Cycle		5 Min, 100% Duty Cycle		1 Hr, 100% Duty Cycle		5 Min, 100% Duty Cycle		1 Hr, 100% Duty Cycle
	Volts	Amps	Volts	Amps	Volts	Amps	Volts	Amps	Volts	Amps	Watts
Open	92.0	0.0	91.1	0.0	92.3	0.0	65	0.0	65.3	0.0	0
8	75.8	9.6	72.8	9.04	72.8	9.04	51.5	6.4	51.5	6.4	329.6
4	68.4	17	63.3	15.8	58.4	14.6	44.8	11.2	41.3	10.3	425.4
2	48.5	24	46.9	23.3	29.7	14.8	33.2	16.5	21	10.5	220.5

DC Output Note: Testing performed in high-current mode.
	OUTPUT (Amperes)
Volts DC	5 Minutes, 100% Duty Cycle	1 Hour, 100% Duty Cycle
48.0	15	9.0
24.0	10.0	7.5
13.5	7.6	6.0

Front Panel Controls Connectors and Indicators - AE Techron 7118 High-speed AC/DC Amplifier with Precision DC Supply

Back Panel Connectors - AE Techron 7118 High-speed AC/DC Amplifier With Precision DC Supply

Specifications
Performance Overview
AC Power (up to 20 kHz)	425 watts RMS
Small Signal (8V p-p)	400 kHz
For High-Power Applications to	50 kHz
DC Power	9A at 48V DC
40 mS Pulse (0.5Ω)	25 Ap
Slew Rate	75 V/µs
Output Voltage	±150 Vp or ±92 Vp
Output Impedance	10 mΩ in series with 0.95 µH
Performance
AC testing was done at 1 kHz. Continuous DC power levels are lower. See DC Specifications chart.
Frequency Response	DC—150 kHz (1 watt): +0 to -3.0 dB
24-Ohm Power Response (continuous duty)	DC to 60 kHz: ± 150 Vpk DC to 200 kHz : ± 70 Vpk
Slew Rate	75 V/µSec
Residual Noise	10 Hz to 22 kHz: 250 µV (0.25 mV) 10 Hz to 500 kHz: 650 µV (0.65 mV)
Signal-to-Noise Ratio	10 Hz - 30 kHz: –105 dB 10 Hz - 500 kHz: –97 dB
THD (DC - 30 kHz)	<0.1%
DC Offset	<±1 mV
DC Drift (after 1 minute operation)	<±200 µV
Output Impedance	10 mOhm in Series with 0.95 µH
Phase Response (10 Hz - 10 kHz)	±6 degrees including 800 nsec propagation delay
Input Characteristics
Balanced with ground	Three terminal barrier block connector, 20k ohm differential
Balanced with ground	Back-panel DB-9 connector (pins 1, 2 and 3), 20k ohm differential
Unbalanced	BNC connector, 10k ohm single ended
Voltage Mode	20 volts/volt
Current Mode	5 amperes/volt
Gain Linearity (over input signal, from 0.2V to 5V)	AC: 0.05% DC: 0.025%
Max Input Voltage	±10V, balanced or unbalanced
Display, Control, Status, I/O
Front Panel
Toggle Switch for	Power
I LIMIT,	Switch: 25A fixed or variable Variable Control Knob: 1 - 25A
COUPLING Switch	AC or DC
OFFSET	Switch: None or Variable Variable Control Knob: ±20V (configurable for ±45V)
RAIL V Switch (voltage potential)	180V or 90V
GAIN	Switch: 20X fixed or variable Variable Control Knob: 0-20X
LED Displays indicate	Power, Signal, Overload, Fault
Signal Input	Unbalanced BNC or balanced Barrier Strip
Signal Output	One pair of 5-Way Binding Posts, accepts wire up to 12 AWG
Back Panel
Power Connection	25 Amp IEC (with retention latch)
DB-9 Connector for	Balanced signal input, remote emergency stop, fault monitor, current monitor.
Communication Capabilities (via back-panel DB-9 Control Port)
Current Monitor	5A/V ±1%
Reporting	System Fault
Remote Control	Emergency Stop
Physical Characteristics
Chassis	The Amplifier is designed for stand- alone or rack-mounted operation. The chassis is steel with a black powder coat finish. The unit occupies one-half rack of two EIA RU
Weight	20 lbs (9.1 kg), Shipping 26 lbs (11.8 kg)
AC Power	Single phase, 120 VAC, 60 Hz, 15A service; (220-240 VAC, 50-60 Hz, 8A service model available)
Operating Temperature	10°C to 50°C (50°F to 122°F), maximum output power derated above 30°C (86°F).)
Humidity	70% or less, non-condensing
Cooling	Two-speed forced air cooling from front to back
Dimensions	9.5 in. x 22.75 in. x 3.5 in. (24.1 cm x 57.8 cm x 8.9 cm)
Protection
Over/Under Voltage	± 10% from specified supply voltage amplifier is forced to Standby
Over Current	Fuse protection on both main power and low voltage supplies
Over Temperature	Separate output transistor, heat sink, and transformer temperature monitoring and protection