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Optimize Your Workflow with a Variable Power Supply

A variable power supply provides precise, adjustable voltage and current for circuit testing, device validation, and troubleshooting. With clean, stable output and real-time control, it ensures accurate, repeatable measurements in R&D, production, and educational labs. Watch the video to see how it enhances your testing workflow.

Keithley 2230G-30-3 Triple Channel Bench Power Supply

Keithley 2230 Series: Versatile, Programmable

Power your tests with up to 375W across three independent channels in a compact benchtop design. With high accuracy, low noise, and flexible control, it's ideal for demanding applications

  • Multi-Channel Power – Up to 375W total
  • Precision Control – Adjustable voltage & current
  • Low Noise & High Accuracy – Protects sensitive components
  • Compact & Versatile – Perfect for R&D, education, and test labs

Explore the Product

 

Find the Variable Power Supply for Your Application

 

How Engineers Use Variable Power Supplies

An engineer working on electronics prototype and adjusting tension on a slide arm unit.

Prototyping and Product Development

A variable power supply lets engineers fine-tune voltage and current during circuit design and prototyping. This flexibility helps test new components, troubleshoot unexpected issues, and optimize efficiency before production. With adjustable power, engineers can simulate real-world conditions and ensure reliable performance.

Reliable Testing for Sensitive Electronics

Stable, low-noise power is crucial for precision analog, RF, and low-power devices. A variable power supply prevents component damage while ensuring accurate, interference-free measurements. Whether testing medical devices, sensors, or communication circuits, clean power is essential for repeatable results.

An engineer adjusting settings on an instrument cluster of Tektronix bench testing equipment.
Automation testing expert viewing three screens and writing test scripts

Automated Test and Validation

In production and validation, programmable variable power supplies streamline testing by automating voltage sweeps, stress tests, and device characterization. With remote control and integration into automated setups, they improve efficiency, reduce errors, and ensure consistent quality.

Variable Power Supply FAQs

Can I use a variable power supply for battery simulation?

Yes, programmable variable power supplies can simulate battery discharge profiles for testing battery-powered devices.

How do I choose the right variable power supply?

Consider voltage and current range, accuracy, output channels, and features like programmability and remote sensing for your specific test requirements.

What is a variable power supply used for?

A variable power supply provides adjustable voltage and current for circuit testing, troubleshooting, and development in R&D, education, and manufacturing.

What’s the difference between a variable power supply and a fixed power supply?

A fixed power supply provides a constant voltage, while a variable power supply allows users to adjust voltage and current for different testing needs.

Why is low noise important in a variable power supply?

Low output noise ensures accurate, interference-free testing, which is essential for sensitive analog and RF circuits.