Supplement: Power
Usability can also be enhanced with a consistent GUI across AC and DC units, reducing the learning curve for test engineers working with both unit types. Newer devices also have full-colour LCD, multi-language, capacitive touch panel displays that simplify interaction and reduce setup times. Front-panel touch displays eliminate the need for mechanical switches, making for a more robust interface for end users. The latest units are also designed for 1U high rack or bench mounting, with a high-power density that saves space in laboratory settings.
In terms of data acquisition and energy efficiency, pre-installed software means test engineers can often control unit and program sequences remotely and use pre- programmed test standards, which can be reported in PDF format for streamlined data acquisition. Modern units can be controlled with standard lab and test software using SCPI commands, allowing easy data integration into analysis programs, with multiple remote programming methods, including built-in LAN, USB, RS232, RS485, and optional IEEE/GPIB interface, facilitating seamless integration into various setups. Meanwhile, the latest devices operate with
Figure 1: TDK-Lambda GENESYS AC power source (Source: TDK-Lambda)
high effi ciency, which can reduce operational costs and support sustainability initiatives. In specifi c confi gurations, some programmable AC power modules are designed to deliver energy effi ciency rates of 87 per cent, reducing through-life operational costs.
Flexible and reliable AC power sources
Fortunately, new devices now commonly integrate a comprehensive suite of advanced functionalities. As an example, the GENESYS AC and GENESYS AC PRO series from TDK- Lambda, which provide power levels of 2kVA and 3kVA (Figure 1). These sources offer adjustable AC voltage from 0 to 350V, and the PRO models extend this to include DC voltages up to ±500V. They can deliver currents up to 30 Arms and operate across a frequency range of 16Hz to 1200Hz, with an extended 5000Hz option available on the GAC-PRO variant.
For scenarios demanding greater output, the 2kVA and 3kVA units can be readily combined to achieve higher power levels or to create multi-phase confi gurations, supporting parallel arrangements up to 27kVA in both single and three-phase setups. Characterised by a high-density 1U form factor, these units present a compact footprint and weigh less than 8kg, facilitating both rack and benchtop integration. Standard features encompass sophisticated waveform generation and harmonics analysis, enabling extensive programmability.
Where next? The future of programmable AC power Looking to the future, continued product evolution will deliver enhanced capability. This could mean automatic over-the-air updates, the addition of new test routines and profiles, and the capability for remote
software/firmware adaptations to meet changing standards and test environments without operational disruptions. Test and development engineers want a continually refined AC programmable power offering, representing increasing demand for precise and flexible power control in various industries. Many end users also want commonality with DC programmable power devices, enabling them to streamline operations. Ultimately, test and development engineers have grown used to the combination of form and function of electronic devices in their personal lives. Now, they can expect the same high performance from test equipment, which will help them operate more effectively and productively for the benefi t of all.
www.emea.lambda.tdk.com
www.cieonline.co.uk
Components in Electronics
July/August 2025 31
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