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根据应用调节台式电源

从培训下一代电气工程师,到开发突破性的超低功耗可穿戴产品,直流电源应用广泛。无论您需要的是可编程直流电源,还是通过提供数千伏电压来突破性能极限的直流电源,选择合适的可变台式电源对于在教学、研究、设计和制造中获得成功的测试结果至关重要。

申请演示

 

如何选择最合适的直流电源?

最常见的选择标准是:

  • 输出通道数量(单路或多路输出)
  • 输出电压、电流和功率
  • 设置分辨率和精度
  • 纹波和噪声
  • 功能和可编程性
  • 高级功能,如纳安级分辨率的电流测量、时序控制、模拟输入、数字 I/O 和 编程功能
EA-PSI 10000 Switching Power Supply

EA-PSI 10000 Series: Precise, High-Performance

Delivering precise, adjustable power with high efficiency and autoranging capabilities, the EA-PSI 10000 Series is built for R&D, production, and test automation.

  • Stable, Programmable DC Power – Precise voltage and current control
  • Autoranging Flexibility – Maximizes power delivery across voltage levels
  • High Efficiency – Reduces energy waste and heat output
  • Remote Programmability – Ethernet, USB, and CAN for automated testing

Explore the Product

吉时利直流电源

Battery Testing & Simulation

 

High-Power & Specialized Applications

 

How Engineers Use DC Power Supplies

Circuit board for analog and RF circuits requiring precision testing

Circuit Design and Prototyping

Engineers rely on DC power supplies to provide stable, adjustable voltage during circuit design, allowing for component validation, performance tuning, and troubleshooting in early-stage development.

Production Testing and Quality Assurance

In manufacturing environments, DC power supplies help test PCBs, power electronics, and semiconductors, ensuring each product meets performance and safety standards before deployment.

Engineer performing research using Keithley test equipment
Automation testing expert viewing three screens and writing test scripts

Automated Test and Measurement Systems

With programmable control and remote operation, DC power supplies integrate into automated test setups, enabling fast, repeatable measurements across multiple devices and conditions.

DC POWER SUPPLY MEASUREMENT TIPS

The 10 Stages of Design

Designing a reliable power supply requires careful planning, precise testing, and the right tools. Our Power Supply Measurement Tips guide walks you through the 10 essential stages of power supply design—from component selection to EMI troubleshooting and final validation. Whether you're optimizing efficiency, ensuring compliance, or troubleshooting issues, these expert insights will help you achieve better performance and faster time to market. And if you're selecting a new power supply, these tips will guide you in making the right choice. Because the best power supply isn’t just about specs—it’s about how you test and refine your design.


  View & Download the Guide

How to Choose the Right DC Power Supply

Selecting a DC power supply can be overwhelming with the range of options available, but breaking it down by application and essential features makes the decision much easier. Here’s what to consider when choosing the right power supply for your needs.

Step 1: Define Your Application

Before looking at specifications, start with the intended use case.

Step 2: Key Selection Criteria

Single vs. Multi-Output

Voltage, Current, and Power Capacity

Precision and Stability

Programmability and Automation

Step 3: Specialized Features for Specific Applications

Step 4: Consider Long-Term Usability

Selecting a power supply is not just about meeting immediate requirements—it’s about ensuring flexibility and longevity.

资源

PwrSupGroup
技术简介

直流电源技术信息

直流电源是一种基本的测试和设计工具,可提供稳压直流输出,为任何组件、模块或设备供电。本简介将介绍什么是直流电源以及直流电源的工作原理。

tek pws
应用指南

交直流电源功率测量

交流-直流电源已完全融入了我们的日常生活。详细了解交流-直流电源的作用以及它们如何成为我们所有电子产品的核心。

5 Series B Double Pulse v1 995
产品选择指南

选择器指南 - 通用台式电源、专用电源和电子负载

为您的应用选择最合适的直流台式电源。泰克和吉时利提供全面的台式电源产品组合,可满足您的电源需求。

FAQs for DC Power Supplies

What is a DC Power Supply?

A DC power supply converts AC power from the mains into a stable DC output. It can be regulated (to maintain a constant voltage) or unregulated, depending on the application.

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What’s the difference between a DC power supply and an AC power supply?

A DC power supply delivers direct current (DC) output, providing a steady voltage for testing and powering electronic devices, circuit boards, and components. An AC power supply, on the other hand, provides alternating current (AC) output, which simulates power from an electrical grid or generator. AC power supplies are typically used to test products that will operate on mains power, such as household appliances and industrial equipment.

What industries use DC power supplies?

DC power supplies are widely used across various industries, including:

  • Electronics & Semiconductor Testing – Used for circuit validation, component characterization, and failure analysis.
  • Automotive & Electric Vehicles (EVs) – Essential for battery testing, powertrain validation, and inverters.
  • Aerospace & Defense – Used for high-precision testing of avionics, radar, and satellite systems.
  • Medical Devices – Supports the development and testing of implantable and portable medical electronics.
  • Renewable Energy – Critical for testing solar panels, fuel cells, and energy storage systems.

Can a DC power supply simulate a battery?

Yes, some programmable DC power supplies are designed to function as battery simulators. These power supplies allow engineers to replicate battery behavior by setting parameters such as internal resistance, voltage sag, and discharge characteristics. This is especially useful for testing battery-operated devices under various charge and discharge conditions without requiring an actual battery, ensuring accurate and repeatable test results.

What are Switching Power Supplies?

Switching power supplies use high-frequency switching regulators to convert AC or DC power efficiently. They are lighter, more compact, and energy-efficient compared to linear power supplies but may introduce electrical noise.

What is a Bench Power Supply?

A bench power supply is a compact, standalone power source used in laboratories, workbenches, and test setups. It typically provides adjustable voltage and current, allowing precise power delivery for electronic circuit testing.

What is a Bidirectional Power Supply?

A bidirectional power supply can both source and sink power, meaning it can supply power to a device under test (DUT) and also absorb power from it. This is particularly useful in applications like battery testing, regenerative energy systems, and electric vehicle (EV) powertrain development.

What is a Linear Power Supply?

A linear power supply converts AC voltage to a lower DC voltage using a transformer and then regulates it using linear regulators. It provides stable, low-noise output but is less efficient due to heat dissipation.

What is a Programmable DC Power Supply?

A programmable dc power supply allows users to set and control voltage, current, and other parameters remotely via software or interfaces like USB, GPIB, or Ethernet, making it ideal for automated testing applications.

What is a Variable Power Supply?

A variable power supply lets users adjust the output voltage and/or current within a specified range, making it useful for applications requiring different power levels during testing or prototyping.

What is an ATE Power Supply?

An ATE (Automated Test Equipment) power supply is designed for integration into automated testing systems, providing precise and repeatable power delivery for electronics manufacturing and validation.

What is an Autoranging Power Supply?

An autoranging power supply automatically adjusts its voltage and current output within a defined power limit, allowing a wider operating range compared to fixed-range power supplies. This flexibility makes it ideal for applications that require varying voltage and current levels without needing multiple power supplies.

How do autoranging DC power supplies improve testing?

Autoranging DC power supplies automatically adjust their voltage and current output to provide full power across a wider operating range. This eliminates the need for multiple fixed-range power supplies, allowing a single unit to accommodate different test conditions without requiring manual range selection. This feature is particularly useful for applications where varying voltage and current loads are needed, such as in battery testing, motor control, and power semiconductor evaluation.

Why is ripple and noise important in a DC power supply?

Ripple and noise refer to unwanted fluctuations in the output voltage of a DC power supply. Low ripple and noise are crucial in applications that require clean and stable power, such as precision analog circuits, RF testing, and medical instrumentation. Excessive noise can interfere with sensitive components, leading to inaccurate test results, degraded signal quality, or erratic device behavior. Selecting a power supply with low ripple and noise ensures more reliable performance in critical applications. Would you like to integrate these into the existing FAQ structure, or should I reformat the entire section for clarity and consistency?