Victor Professional LED Display Switching DC Power Supply Series | 0-35V/0-10A Output with Programmable Control Options (3003A/3005A/3010A/3005AC/3010AC)

1. High-Visibility LED Display with Real-Time Power Readout
Unlike conventional linear power supplies that only show voltage and current, this switching DC power supply integrates a dedicated LED display that simultaneously presents voltage, current, and output power. The decimal point automatically adjusts its position for optimal readability, allowing engineers to instantly assess total energy delivery without switching between measurement modes. This feature is particularly valuable when testing devices with varying load characteristics, as you can observe power fluctuations in real time and make immediate adjustments.

2. Intelligent CV/CC Automatic Transition
The internal control circuitry continuously monitors output conditions and seamlessly switches between constant voltage and constant current modes based on the load demand. This automatic transition protects sensitive components from overcurrent stress while maintaining the set voltage level. Whether you are powering a resistive load, charging a battery, or driving a motor, this switching regulated power supply ensures that the output remains within safe operating boundaries without manual intervention—saving time and reducing the risk of operator error.

3. Output Preset and ON/OFF Control for Safe Operation
A standout usability feature is the ability to preset both voltage and current values while the output is switched off. Once the desired parameters are entered, pressing the output control switch activates the supply with exactly the predefined settings. This prevents voltage spikes or current surges that could damage sensitive prototypes or expensive components during connection. The output switch also serves as an emergency cutoff, giving you instant manual control over power delivery during experiments.

4. Comprehensive Multi-Level Protection System
Reliability is paramount in any test environment, and this switching power supply incorporates five layers of protection: overvoltage protection (OVP) to clamp excessive output, overcurrent protection (OCP) to limit current draw, overpower protection (OPP) to prevent thermal runaway, overtemperature shutdown to safeguard internal components, and short-circuit protection that immediately disables output upon detecting a fault. These safeguards work together to protect both the power supply and your device under test, making this series a trustworthy choice for long-duration burn-in tests and unattended operations.

5. Advanced Programmability in AC Models (3005AC / 3010AC)
For users requiring repetitive testing sequences or automated workflows, the 3005AC and 3010AC models elevate this Switching Mode Power Supply into a true programmable instrument. With 6 groups of quick parameter storage, you can recall frequently used voltage/current configurations with a single button press—eliminating repetitive setup tasks. The hardware-based List programmable sequence output allows you to define step-by-step voltage or current profiles over time, ideal for characterizing component responses, battery charging algorithms, or power supply transient testing. The one-click keyboard lock function further prevents accidental parameter changes during critical test runs, ensuring data consistency and repeatability.

6. Four-in-One Versatility for Cost-Effective Investment
The AC models are uniquely positioned as four types of power supplies in a single chassis: they operate as a standard manual power supply, a numeric-controlled precision supply, a fully programmable power supply, and a sequence-programmable power supply. This versatility means you no longer need to purchase separate instruments for routine power delivery, automated testing, and sequence-based characterization. For R&D labs with limited bench space or tight budgets, this all-in-one capability delivers exceptional value without compromising on performance or accuracy.

7. Smart Temperature-Controlled Cooling System
Heat management is critical for long-term stability, especially at higher output currents. This series employs a temperature-controlled fan that dynamically adjusts its rotational speed based on internal thermal conditions. At low loads, the fan operates quietly, contributing to a more comfortable working environment. Under heavy load, the fan ramps up to maintain optimal operating temperatures, preventing component degradation and extending the overall service life of the switching power supply. This intelligent thermal design also reduces dust accumulation compared to always-on fan systems.

8. Compact Mechanical Design with Consistent Form Factor
Despite the wide power range from 90W to 300W, all models share a nearly identical footprint (280mm depth × 130mm width × 165mm height for the 3A/5A versions; 280mm × 100mm × 165mm for the 10A versions) and weigh approximately 2.2kg. This compact, lightweight construction makes the series ideal for portable test setups, field service applications, or multi-unit rack configurations where space is at a premium. The standardized dimensions also simplify inventory management and replacement planning for organizations maintaining large fleets of power supplies.

9. High Setting and Readback Accuracy
With setting accuracy as tight as ≤0.1%+5 digits on the 3003A and 3005A, and ≤0.02%+3mV readback accuracy on the 3010A, these switching regulated power supplies deliver laboratory-grade precision typically associated with much higher-priced linear supplies. The AC models maintain ≤0.2%+5mV accuracy while adding programmability, striking an optimal balance between performance and advanced functionality. This level of precision ensures that your test results are trustworthy and traceable, meeting the requirements of quality assurance protocols and certification standards.

10. Wide Application Coverage
From powering microcontroller boards and sensor arrays to testing automotive electronics, battery chargers, LED drivers, and communication equipment, this series adapts to diverse application scenarios. The AC models, with their programmable sequences, are particularly well-suited for automated test equipment (ATE) integration, production line aging tests, and educational laboratories where students can learn both manual and automated power supply operation techniques.