Arbitrary amplifiers

Precision power amplification for demanding test applications

Product overview

What is the arbitrary 4-Quadrant-Amplifier?

The Bolab 4-Quadrant Amplifier System is a high-performance arbitrary voltage and current amplifier designed for fast, precise and fully programmable electrical testing. Combining power amplification, waveform generation and signal processing in a single modular platform, the system enables highly dynamic simulation of real-world electrical conditions. 


With bandwidths up to 200 kHz full range and up to 1 MHz small-signal response, Bolab amplifiers accurately reproduce ripple, load dump events, voltage drops, spikes and complex transients. Modular configurations range from compact 400 W systems up to 18 kW and can be expanded beyond 500 kW, providing maximum flexibility for both low- and high-voltage testing environments. 

What is it used for?

Bolab 4-Quadrant Amplifiers are designed for applications that require highly dynamic voltage and current simulation with maximum precision and reliability. They are used across automotive, aerospace, defense, energy and advanced electronics industries to validate ECUs, batteries, converters, inverters, power electronics and other mission-critical electrical systems under realistic operating conditions. 


With ultra-fast response times, arbitrary waveform generation and scalable high-power architectures, Bolab systems provide a future-ready solution for next-generation electrical testing. 

Built for next-generation electrical testing

The challenge

Modern electrical and electronic systems are becoming increasingly complex, dynamic and power-intensive. Industries such as automotive, aerospace, defense and energy face major challenges when validating components under realistic operating conditions. Conventional power supplies and test systems often struggle to reproduce fast transients, ripple signals, voltage drops, load changes and bidirectional power flows with the speed, precision and flexibility required by today’s standards.

The solution

Bolab 4-Quadrant Amplifier Systems provide a powerful and flexible platform for highly dynamic electrical testing. By combining precision power amplification, intelligent waveform generation and scalable system architecture, the systems enable engineers and test laboratories to recreate complex real-world electrical conditions with exceptional accuracy and repeatability. 


Designed for demanding validation environments, Bolab systems simplify advanced testing workflows, reduce setup complexity and integrate seamlessly into automated laboratories and HIL environments. 

Key Features

Ultra-fast signal dynamics

With rise and fall times below 1.5 μs and bandwidths up to 1 MHz, Bolab amplifiers deliver highly accurate simulation of ripple, transients, voltage drops and load dump pulses. Excellent signal quality with minimal overshoot and undershoot ensures reliable and repeatable test results. 

True 4-quadrant power operation

Unlike conventional power supplies, Bolab systems can both source and sink energy. This true 4-quadrant capability enables realistic simulation of bidirectional power flows, regenerative systems and dynamic load behavior. 

Modular and scalable

Start with a compact low-power setup and scale seamlessly to high-power multi-rack systems exceeding hundreds of kilowatts. Parallel and serial expansion provide maximum flexibility for future applications and evolving test requirements. 

Unlimited waveform generation with WaveMaster™

WaveMaster™ software combines waveform generation, automation and measurement in one integrated platform. Users can create custom waveforms, import oscilloscope data and execute automated test sequences without additional external hardware.

Easy integration into automated test environments

Support for Python, LabVIEW™, CANoe/CAPL, C#, C++ and other programming environments enables seamless integration into automated laboratories and HIL systems while reducing implementation effort. 

One platform for low- and high-voltage testing

From 12 V vehicle systems to high-voltage EV architectures up to 1,500 V, Bolab provides a single flexible platform for a wide range of electrical testing applications.

Special Features

DC - 200 kHz bandwidth DC 

DC up to 1 MHz (small signal -3 dB)

Output voltage 35 V / 70 V / 75 V

Rise / fall time up to 100 V/µs

USB interface standard, LAN optional


Analogue control input 0 ... ±10 V for control of voltage and current

Monitor outputs for measured voltage and current values



Modularly extensible via master-slave mode


Parallel and Series Connections for two or more units


Designed for international industry standards

Bolab 4-Quadrant Amplifier Systems support a wide range of international and OEM-specific electrical test standards. Integrated waveform libraries and automated test capabilities enable efficient compliance testing according to standards such as LV 124, LV 148, VW 80000, VW 80300, ISO 16750, ISO 21498, ISO 7637, MBN LV123, VDA 320 and many others. 


This makes Boab a flexible and future-ready solution for automotive, aerospace, defense and industrial testing applications. 

4 quadrant voltage and current amplifiers