4-quadrant
voltage and current amplifier
DC-1 MHz | 60 V/μs | 1000 W (source)
1 Product
Description
The A1110-40-QE-70-16 is a
linear, extreme-broadband,
precision power amplifier with optimized voltage ranges for
automotive wiring system simulation.
The A1110-40-QE-70-16 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 per polarity are available for high-voltage/low-current or low- voltage/high-current applications. The voltage switch-over can be implemented optionally as
manual or automatic. Especially in case of very low-impedance loads, the operating voltage can be reduced to 1/10 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 over- temperature 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
be controlled with the supplied A1110 Control Software via an USB connection.
2 Features
• 4-quadrant voltage and current amplifier
• Fully configurable and operable by means of the supplied software
• Output voltage max.
70 Vpeak
• Output current max. 40
Apeak
• Symmetrical input
• Series / parallel input connection in case of higher voltage / current requirements
• USB
port as standard (LAN interface optional)
• Auto-commutating voltage supply
• 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
• MRI
• Component tests
• Plunger coil drives
• Piezo actuation
• Generation of magnetic fields (e.g. with Helmholtz coils)
• Medical engineering
• Laser technology
• Plasma technology
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 this context, disclosure of
the line commands guarantee trouble-free integration of existing automated test systems.
Figure 1: A1110-QE-Control Main Menu
5 Current Amplifier
In current control mode, the A1110-40-QE-70-16
behaves like a
voltage-controlled current source and delivers a nearly frequency-independent constant load current to an inductive load.
The following five compensation networks are equipped ex works.
|
No
|
Load
|
Rc
|
Cc
|
Current Range
|
|
1
|
1 Ohm + 500 uH
|
100 kOhm
|
10 nF
|
high
|
|
2
|
0,1 Ohm + 200 uH
|
68 kOhm
|
4,7 nF
|
high
|
|
3
|
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 A1110-QE-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 your amplifier 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 your
application.
6 Specifications
|
Parameters
|
Specification
|
Conditions
|
|
|
Controlled Voltage
Mode
|
20° C ambient temperature
|
|
|
|
|
|
Input Impedance
|
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
|
|
Max Output Voltage
...Range I (Low
Voltage)
...Range II (Mid Voltage)
...Range III (High Voltage)
|
+18/-16 Vdc
+27/-16 Vdc
+70/-16 Vdc
|
|
|
Max Output Current
|
40 Ap
|
|
|
Current, Pulse, 500ms,
5% Duty Cycle, unipolar
|
80 Ap
|
Auto Mode, rise-/fall-time >20us
|
|
Max Output Power
|
1 kW
|
|
|
|
|
|
|
Voltage Monitor
|
±1 V ≙10 V ± 0.5%
|
< 200 kHz
|
|
Current Monitor
|
±1 V ≙ 10 A ± 1%
|
< 100 kHz
|
|
|
|
|
|
Gain
|
|
|
|
Controlled Voltage Mode
|
1 V / 10 V; ± 0.1%
|
Uin / Uout
|
|
|
|
|
|
Interface
|
USB 2.0, LAN
|
|
|
AC Power
|
1x230 VAC /
1x16 A / 50 Hz /
|
|
6.1 Pulse Response
Figure 3: C3: Output Voltage; C4: Output Current; Vin: 10
kHz ,
Load: 2,5 Ohm
7 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
|
Order Number
|
|
A1110-40-QE-70-16
|
4-Quadrant Voltage and Current Amplifier
|
11100160
|
|
Option-01: Custom Current Amplifier
|
Additional compensation network for one specified load. The device is equipped with five general-purpose
networks by default.
|
11101010
|
|
Option-03: Ultra Stable Gain
|
Gain 10±0,1% (±25ppm/C°); Offset ±1mV (±25uV/C°)
|
11101030
|
|
Option-05:
Isolation Amplifier
|
For potential isolation of input and output
|
11101050
|
|
Option-06: Ethernet Interface
|
For connection to a computer (RJ45)
|
11101060
|
|
Option-10:
Internal Current Measurement
|
High-performance current transformer;
Precision DC +/-0.1%; Output BNC bush, galvanically isolated from the amplifier
|
11101100
|
|
Option-11: Voltage and Current Displays
|
Display in front panel (monitor outputs)
|
11101110
|
|
Option-12: Adjustable Output Resistance
|
R: 0 mΩ – 200 mΩ; Resolution 1
mΩ; Accuracy 0.5%
|
11101120
|
|
Option-14: Overvoltage Protection
|
For protection of amplifier outputs
|
11101210
|