DC Electronic loads – go high performance

New range of high performance / high speed DC Electronic loads from Kikusui

The PLZ-5W Series high performance electronic load is the successor to the highly respected PLZ-4W series, whilst still retaining the same high specification and build quality. Advances include a high visibility colour display, low voltage operation from a minimum of 1 V to a maximum of 150 V (lower input voltage possible at reduced current). Programmable profiles of voltage/current can be applied (using the new ARB function, as used in LED/solar testing) in addition to the inherited 6 modes of operation: Constant Current, Constant Resistance, Constant Voltage, Constant Power, Constant Current + Constant Voltage, Constant Resistance + Constant Voltage.


•           Colour liquid crystal display (LCD)

            High visibility colour display. The voltage, current, power, current capacity (Ah) and power capacity (Wh) values are conveniently displayed.

•           Maximum slew rate of 60 A/µs

Achieving a rise time of 4 µS to reach the rated current of the electronic load. Power supply evaluation demands a fast transient response which the PLZ-5W series achieves with ease.

•           High speed voltage tracking characteristics

            High speed voltage tracking characteristic in CR mode is perfect for applications such as startup tests for power supplies.

•           Communication interfaces are included as standard

LAN (LXI) / USB / RS232C as standard interface. Use a browser from a PC, smartphone, or tablet to access the web server built into the PLZ-5W series for convenient control and monitoring.

•           Arbitrary I-V characteristics (ARB) mode

In ARB mode arbitrary I-V characteristics can be set by entering multiple I-V points (voltage and current value set points). From 3 to 100 points can be registered and the space between two points is automatically linearly interpolated. This mode can be used for simulation of LED loads and other DUT’s with non-linear characteristics.

Equipped with a high-speed response feature boasting a maximum slew rate of 60 A/µs (PLZ1205W) and a minimum setting resolution of 10 µA (PLZ205W). Additional features of the PLZ-5W series include: Soft-start function, variable slew rate, selectable response (CV/CR mode), switching function, ABC preset memory, 20 user-defined set-up configurations, and a sequence operation function. The advanced high-speed response makes the PLZ-5W ideal for the development and testing of today’s modern power supplies that require variable high-speed current changes. This advantage extends to the testing of current clamps/transducers.


The PLZ-5W Series is available in 4 standard models which can be incrementally extended by adding additional booster units (PLZ2405W) to achieve a maximum of 10.8 kW / 2160 A DC electronic load.


The following communication interfaces are installed as standard: LAN (LXI compliant), USB, RS232C and analogue control. An optional GPIB interface is available.


Kikusui’s range of DC loads are available for both sale and hire from Wokingham based Telonic Instruments Limited.



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