Bench power supplies | Electrical testing

Bench power supplies are a cornerstone of electrical testing, prototyping and laboratory work. Designed to deliver stable, adjustable voltage and current, they provide engineers, technicians and educators with the control needed to safely power and evaluate electronic circuits. Whether you're developing a new product, repairing equipment, or conducting research, a reliable bench power supply is essential.

What are bench power supplies?

A bench power supply is a standalone unit that converts mains electricity into a regulated DC output. Unlike fixed power sources, bench supplies allow users to adjust voltage and current levels to suit the specific requirements of the device under test. Most units feature digital displays, fine-tuning controls and safety features such as current limiting and overload protection.

There are several types of bench power supplies:

• Linear power supplies offer low noise and high accuracy, ideal for sensitive analog circuits.
• Switch-mode power supplies (SMPS) are more compact and efficient, suitable for general-purpose use.
• Programmable power supplies allow automated control via USB, LAN, or RS-232, making them ideal for test automation and data logging.

Who uses bench power supplies?

Bench power supplies are used across a wide range of industries and disciplines:

• Electronics engineers use them for circuit development and debugging.
• Technicians rely on them for repair and maintenance tasks.
• Educational institutions use them in labs for hands-on learning.
• R&D teams integrate them into test benches for product validation.

Their versatility makes them suitable for everything from powering microcontrollers to stress-testing industrial components.

Our product range: reliable options for every application

At Rapid, we offer a carefully curated selection of bench power supplies to suit different needs and budgets. Our range includes trusted brands known for quality, innovation and value.

Our own brand, VOLTCRAFT, delivers excellent value without compromising on performance. The range includes single and dual output models, as well as programmable power supplies ideal for laboratory and educational use. VOLTCRAFT units are known for their reliability and affordability, making them a popular choice for entry-level and mid-range applications.

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We stock one of the UK’s widest selections of Aim-TTi bench power supplies. Manufactured in England, Aim-TTi is renowned for its precision instruments and robust build quality. Their range includes both cost-effective models for everyday use and high-end units for demanding professional environments. With options for linear, switch-mode and programmable outputs, Aim-TTi caters to engineers who need dependable, accurate power.

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A newer addition to our offering is the German brand, Joy-IT. Their bench power supplies are designed with affordability and ease of use in mind, making them ideal for educational labs, STEM programs and higher education. Despite their budget-friendly pricing, Joy-IT units offer solid performance and intuitive controls.

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Keithley, part of the Tektronix family, has a long-standing reputation for delivering high-performance instruments tailored to the needs of R&D labs, semiconductor testing, and precision electronics. Their bench power supplies are designed to offer exceptional accuracy, low noise, and fine control, making them ideal for sensitive applications where even minor fluctuations in voltage or current can affect outcomes.

As a technical partner for Keithley, Rapid is proud to offer a curated selection of their bench power supplies alongside expert support. This partnership allows us to provide more than just products, we offer tailored solutions and hands-on guidance to help customers choose the right equipment for their specific needs.

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Power you can trust

Bench power supplies are more than just voltage sources, they’re precision tools that support innovation, safety and efficiency. Whether you're working in a lab, workshop, or classroom, choosing the right power supply can make all the difference. Explore our full range of bench power supplies from Voltcraft, Aim-TTi and Joy-IT to find the perfect fit for your testing environment.