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Featured Variable/Adjustable DC 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
Find the Variable/Adjustable Power Supply for Your Application
How Engineers Succeed with Tektronix Variable/Adjustable DC Power Supplies

Precision Power for Your Circuit
Is your test system truly accurate? Beyond datasheet specs, factors like load regulation, remote sensing, and even wiring significantly impact the voltage delivered to your circuit or device. Learn how to properly interpret accuracy specifications and apply techniques like remote sensing to ensure maximum precision in your measurements.
Factors Affecting Accuracy of a Programmable DC Power Supply in a Circuit
Resources for Further Exploration
Streamline Your Battery Testing Setup
Simplify battery testing by replacing separate power supplies and loads with one bidirectional unit. Discover how Tektronix's solutions enable seamless charge/discharge test cycles, enhance safety features, and even cut costs via energy regeneration for your advanced battery test needs.
How Bidirectional Programmable DC Power Supplies Make Battery Testing Easier
Resources for Further Exploration


Boost Test Automation with Autoranging
Stop swapping power supplies for every device in your automated test system! Watch this video to see how EA's True Autoranging lets one unit cover more DUTs, maximizing flexibility and efficiency for your test automation.
Resources for Further Exploration
DC電源測定のヒント
設計の10ステップ
信頼性の高い電源の設計には、綿密な計画、正確な測定、そして適切なツールが不可欠です。テクトロニクスの「電源測定のヒント」ガイドでは、部品の選定からEMIのトラブルシューティング、最終的な検証まで、電源設計に欠かせない10のステップを順を追って解説しています。効率の最適化、規格への適合、あるいは不具合の解消など、どのような目的であっても、これらの専門的な知見はパフォーマンスの向上と製品開発期間の短縮を実現します。また、新しい電源を選定する際にも、これらのヒントが最適な選択をサポートします。最高の電源とは、単なる性能だけではなく、いかにテストを行い、設計を改善していくかによって決まるものだからです。
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.












