TAIPEI, Taiwan — GW Instek today announced the launch of the SPS-A Series Switching DC Power Supply, a new-generation upgrade to the company’s established SPS Series. Designed for engineers, educators and production test professionals who require reliable DC power with straightforward operation, the SPS-A Series combines an improved user interface, finer output control and comprehensive protection functions in a compact and practical power platform.

The SPS-A Series is introduced with five models: SPS-1230A, SPS-1820A, SPS-2415A, SPS-3610A and SPS-606A. This model line-up is designed to support a broad range of voltage and current requirements across daily engineering tasks, laboratory experiments, component testing and production environments. By enhancing both the front-panel experience and the underlying control functions, GW Instek positions the SPS-A Series as a practical and dependable solution for applications where test efficiency, stable output and operational safety are essential.

At the centre of the SPS-A Series is a redesigned user interface built around an encoder-switch digital control knob. This approach allows users to adjust voltage and current settings more quickly and with finer control, especially when repeated parameter changes are required during R&D validation, classroom demonstrations or production-line test procedures. The tactile and digital nature of the encoder control helps users move from coarse adjustment to precise setting with greater confidence, reducing the friction often associated with routine power-supply configuration.

The series is also equipped with a 2.4-inch TFT LCD colour display, providing a clear and easy-to-read view of output status and operating conditions. In practical test environments, display clarity directly affects workflow efficiency. Engineers and technicians need to confirm voltage, current and output conditions quickly, sometimes from a distance or under less-than-ideal lighting. The TFT LCD interface on the SPS-A Series supports this need by presenting key information in a more visible and intuitive format.

Measurement accuracy is another key design focus. The SPS-A Series supports Remote Sensing with 2-wire and 4-wire switching, enabling compensation for voltage drop caused by lead resistance. In many real-world power tests, especially those involving higher current or longer cable connections, the voltage delivered at the load can differ from the voltage indicated at the power supply terminals. With remote sensing, users can obtain more accurate voltage delivery at the DUT, improving the reliability and repeatability of test results. This capability is especially valuable in electronic component measurement, battery charging and discharging tests, consumer electronics validation and semiconductor-related test environments.

To safeguard both the device under test and the instrument itself, the SPS-A Series includes multiple protection mechanisms: OVP, OCP and OTP. Over-voltage protection, over-current protection and over-temperature protection are critical for reducing the risk of damage under abnormal operating conditions. In R&D laboratories, educational settings and production lines, power supplies may be used repeatedly by multiple users and across varied test scenarios. Built-in protection functions help create a safer operating environment and support consistent test quality over time.

The SPS-A Series has also been designed to improve daily workflow efficiency. Users can store and recall three sets of operating parameters, while also defining one power-on default setting. This allows frequently used test conditions to be recalled quickly, minimising repetitive configuration steps and helping standardise routine test procedures. For production teams, this can reduce set-up time and improve consistency. For educational laboratories, it can help instructors prepare repeatable experiment conditions. For R&D engineers, it supports rapid switching between common voltage and current profiles during design verification.

The series provides a setting resolution of 10 mV / 10 mA and a readback resolution of 10 mV / 1 mA. These specifications make the SPS-A Series suitable for applications that require controlled adjustment and close monitoring of output conditions. While the product is positioned as a practical switching DC power supply, the finer setting and readback capabilities give users greater visibility and control in tasks where small changes in supply conditions may influence test outcomes.

Operational safety has been further strengthened through a dedicated Output On/Off control. This allows users to complete voltage and current settings before enabling the actual output, reducing the risk of unintended power delivery to the DUT. The front-panel lock function helps prevent accidental operation or parameter changes during long-duration testing, classroom use or production-line operation. These design elements reflect a practical understanding of how benchtop and system power supplies are used in the field: not only by experienced engineers, but also by students, technicians and multi-user teams.

For system integration, the SPS-A Series includes Control I/O functionality and supports the GRA-441-J/E rack-mount kits, enabling convenient installation into rack-based platforms or automated test environments. This expands the usability of the series beyond standalone benchtop operation and allows users to integrate the instruments into more structured test stations. As laboratories and production environments increasingly require flexible, repeatable and space-efficient configurations, rack-mount and control I/O support provide important deployment advantages.

The SPS-A Series is well suited for schools and research institutions, the energy storage industry, the semiconductor industry and the consumer electronics industry. Key application areas include scientific research and experimental testing, battery charging and discharging tests, electronic component measurement and 3C consumer electronics testing. Across these use cases, the product delivers the core attributes engineers expect from a dependable DC source: stable output, clear operation, protective safeguards and integration flexibility.

With the launch of the SPS-A Series, GW Instek reinforces its commitment to practical engineering value. The new series is not merely a replacement for the original SPS products; it is a refined platform that responds to the needs of today’s test environments, where speed, safety, precision and usability must work together. By combining an intuitive interface, remote-sensing capability, fine setting and readback resolution, multiple protection functions and rack-mount compatibility, the SPS-A Series gives users a more capable and efficient DC power solution for everyday test and measurement work.

GW Instek will continue to develop test and measurement solutions that help engineers, educators and manufacturers meet evolving technical challenges with confidence. The SPS-A Series reflects that direction: a reliable, accessible and application-ready switching DC power supply designed to support the next generation of electronic testing.

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About GW Instek

Founded in 1975 and headquartered in New Taipei City, Taiwan, Good Will Instrument Co., Ltd. (GW Instek) is a world-class manufacturer of electronic test and measurement instruments. With a product portfolio exceeding 300 models — including oscilloscopes, spectrum analyzers, power supplies, and safety testers — GW Instek serves customers in over 80 countries across education, research, and industrial sectors.

For more details, visit [SPS-A Series Switching DC Power Supply].

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Good Will Instrument Co., Ltd
No. 7-1, Jhongsing Road, Tucheng Dist.,
New Taipei City 23678, Taiwan R.O.C
Email: marketing@goodwill.com.tw