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Optimize Your Workflow with a Linear Power Supply

A linear power supply delivers ultra-stable, low-noise DC power, making it ideal for precision electronics testing. Unlike switching power supplies, it provides clean, ripple-free output to ensure accurate, interference-free measurements. Watch the video to see how it enhances your testing workflow.

Keithley 2280s-32-6 precision measurement linear power supply

Keithley 2280S Series: High-Precision, Ultra-Low Noise

Power your most sensitive tests with ultra-low noise, precise voltage control, and high accuracy measurement capabilities in a compact benchtop design.

  • Ultra-Low Noise – Ripple-free output
  • High Accuracy – 0.02% voltage programming and readback
  • Remote Sensing – Compensates for voltage drop across leads
  • Compact & Versatile – Ideal for precision testing and R&D

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Find the Variable Power Supply for Your Application

 

How Engineers Use Linear Power Supplies

Circuit board for analog and RF circuits requiring precision testing

Precision Testing for Analog and RF Circuits

Linear power supplies provide clean, ripple-free power that prevents unwanted noise from affecting analog or RF circuit performance. This ensures accurate signal integrity and reliable test results in sensitive applications.

Stable Power for Low-Noise Research Applications

In applications like medical device development or precision sensor testing, low-noise power is essential to avoid interference and maintain accurate measurements. Linear power supplies provide the stable DC output needed for these demanding environments.

Engineer performing research using Keithley test equipment
An engineer adjusting settings on an instrument cluster of Tektronix bench testing equipment.

Consistent Voltage for Long-Duration Testing

Long-term reliability testing requires a stable power source to maintain consistent voltage and current over extended periods. Linear power supplies prevent fluctuations that could affect test outcomes, making them ideal for aging and stress testing.

Linear Power Supply FAQs

Are linear power supplies less efficient than switching power supplies?

Yes, linear power supplies typically generate more heat and have lower efficiency, but they provide cleaner, more stable power for sensitive testing needs.

Can a linear power supply be used in automated test setups?

Yes, many modern linear power supplies feature remote sensing and programmable control for integration into automated testing environments.

What applications benefit most from a linear power supply?

Analog circuit design, RF testing, medical device research, and long-duration stability testing all require the precision of a linear power supply.

What makes a linear power supply different from a switching power supply?

A linear power supply provides ultra-stable, low-noise output by regulating voltage through a transformer and linear regulator, unlike switching supplies that use high-frequency conversion.

Why is low noise important in a linear power supply?

Low noise ensures interference-free testing, making linear power supplies ideal for precision analog, RF, and low-power device applications.