Datasheet

A1110-40-E-70-32
4-Quadrant Voltage and Current Amplifier
DC – 600 kHz

Revision 1.0

1 Product Description
The A1110-40-E-70-32 is a linear, extreme-broadband, precision power amplifier with optimized
voltage ranges for automotive wiring system simulation.
The A1110-40-E-70-32 can be operated as a voltage amplifier or current amplifier. The current
amplifier offers a constant, frequency-invariant output current for inductive loads.
Three optional operating voltages are available for high-voltage/low-current or low-voltage/highcurrent applications. Especially in case of very low-impedance loads, the operating voltage can bereduced which is associated with a corresponding reduction of the power loss.
Output voltage and output current can be limited and observed on low-impedance monitor
outputs.
The device is equipped with a temperature-controlled, quietly-running fan. As well as an overtemperature protection, a power-loss calculation and an absolute-current monitoring guarantees
perfect short-circuit and overload protection.
An interlock offers the possibility of a remote-controlled security system.
The device can be operated by using elements on the front panel. Additionally the device can becontrolled with the supplied NF-HUBERT-Control Software via an USB connection.
The device’s functionality can even be extended by several product options.
Please find the latest release of this datasheet on our website:www.drhubert.com

Product DescriptionPage 2

2 Features•

4-quadrant voltage and current amplifier•

Fully configurable and operable by means of the supplied software•Output voltage max. +70 Vpeak/-32Vpeak•

Output current max. 40 Apeak•

Output current 80 Apeak / 5 ms•

Symmetrical input•

Series / parallel input connection in case of higher voltage / current requirements•

USB port as standard (LAN interface optional)•Interlock•

Voltage / current monitor output•

Sensing Inputs•

Up to 6 configurable compensation networks for inductive loads in current amplifier mode.
Five general-purpose networks are onboard per default.

3 Applications•General lab applications for research, development and testing•

EMC testing•

Material testing•Electric Vehicle Test SystemsApplications

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4 Control Software
The scope of delivery includes an application software that ensures fully remote-controlled
operation and comprehensive configuration of the amplifier via the USB or LAN interface. In thiscontext, disclosure of the line commands guarantee trouble-free integration of existing automatedtest systems.

Figure 1: NF-HUBERT Main Menu

5 Pictures

Figure 2: Back panel elements

Pictures

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6 Current Amplifier
In current control mode, the A1110-40-E-70-32 behaves like a voltage-controlled current sourceand delivers a nearly frequency-independent constant load current to an inductive load.
The following five compensation networks are equipped ex works.
NoLoadRcCcCurrent Range

11 Ohm + 500 uH

100 kOhm

10 nF

high

2

0,1 Ohm + 200 uH

68 kOhm

4,7 nFhigh3

1 Ohm + 1mH

150 kOhm

22 nF

high

4

4 Ohm + 1,8 mH

200 kOhm

1 nF

high

5

0,078 R + 88 uH

80 kOhm

6,8 nF

high

6

Reserved for Option-01

Table 3: Compensation networks
The selection is made by our NF-HUBERT-Control software. Please also note the corresponding
recommended current measuring range.
If none of the above compensation networks is suitable for your application, please order youramplifier with Option-01: Custom Current Amplifier. Our engineers will design a custom
compensation network specific for your needs. You can add additional networks to your amplifier.
Up to six customs networks are possible as existing ones can be removed.
We would be pleased to assist you in the realization of a compensation network for yourapplication.

Current Amplifier

Page 5

7 Specifications
Parameters

Specification

Conditions

Controlled Voltage Mode

20° C ambient temperature

100 kOhm

Unbalanced, 1 kHz

200 kOhm

Balanced, 1 kHz

Small Signal Bandwidth

DC-600 kHz+0, -3 dB, @ 10 kOhm
High Voltage

Large Signal Bandwidth

DC-200 kHz+0, -3 dB, 10 Ohm
High Voltage

Slew Rate

60 V/µs@10 kOhm

DC-Offset< 1 mVDC

THD+N< 0,2 %

10 Vp/100 Hz @ 0,06 Ohm; < 80 kHz Bandwidth

Residual Noise< -69 dBV
< -62 dBV

10 Hz - 22 kHz
10 Hz - 500 kHz

Input Impedance

Max Output Voltage...Range I (Low Voltage)...Range II (Mid Voltage)...Range III (High Voltage)+18/-32 Vdc+30/-32 Vdc+70/-32 Vdc

Max Output Current

40 ApCurrent, Pulse, 5ms,0.25% Duty Cycle, unipolar

80 ApMax Output Power1 kW

Voltage Monitor±1 V ≙ 10 V ± 0.5%

< 200 kHzCurrent Monitor±1 V ≙ 10 A ± 1%

< 100 kHz

Controlled Voltage Mode

1 V / 10 V; ± 0.1%

Uin / Uout

Controlled Current Mode

1 V / 10 A

Uin / Iout

InterfaceUSB 2.0, LANAC Power1x230 VAC / 1x16 A / 50 Hz /Gain

Specifications

Page 6

7.1

Pulse Response

Figure 3: C3: Output Voltage; C4: Output Current; Vin: 10 kHz , Load: 2,5 Ohm

Specifications

Page 77.2Output Current Capability versus Output Voltage

Specifications

Page 8

Specifications

Page 98 Block Diagram

Block Diagram

Page 10

9 Product Options
The following product options are available at the time of placing the order. Upgrades of existing
devices are not possible.
Article Name

Article Description

A1110-40-E-70-32

4-Quadrant Voltage and Current Amplifier

Including: Sensing

Adjustable voltage drop: 500 mV / 1V / 2V

Option: Custom Current
AmplifierAdditional compensation network for one specified load. The device isequipped with five general-purpose networks by default.

Option: 3-Channel
Isolation Amplifier

For potential isolation of input and output

Option: Ethernet Interface For connection to a computer (RJ45)
Option: Internal Current
Measurement

High-performance current transformer; Precision DC +/-0.1%; Output BNC
bush, galvanically isolated from the amplifier

Option: Adjustable Output R: 0 mΩ – 200 mΩ; Resolution 1 mΩ; Accuracy 0.5%
Resistance
Option: Overvoltage
Protection

10For protection of amplifier outputs

Contact
Dr. Hubert GmbH
Dietrich-Benking-Str. 4144805 Bochum - Germany
Tel. +49 234 970569-0
Fax. +49 234 970569-29
service@drhubert.de
Further information is available on our website www.drhubert.com.

Contact

Page 1111Document History
Revision

Date

Changes

1.0

November 2022

First publication in new layout

Document History

Page 12