LED Driver Testing Programmable AC Power Source

0.1-300V 350VA 500VA 1KVA with Voltage and

Frequency Adjustment

Programmable AC Variable Frequency Power Supply for LED Driver Testing

Overview

This series of programmable AC variable frequency power supplies is designed for LED driver testing, providing adjustable AC input conditions for evaluating LED driver operating performance under different voltage and frequency settings. With an output voltage range of 0.1–300V and a frequency range of 45–400Hz, it allows engineers to configure different AC input conditions during LED driver development, laboratory verification, and production testing.

Available in three capacity options, Model 1 (350VA), Model 2 (500VA), and Model 3 (1KVA), this series accommodates different LED driver power requirements, from low-power driver development to higher-capacity product evaluation. Featuring voltage and frequency adjustment, parameter preset storage, 50Hz/60Hz quick selection, and standard RS-232C / RS-485 communication interfaces with Modbus RTU protocol, it can also connect to PLCs, host computers, and automated testing systems for programmable operation.

Key Features

• Adjustable AC Input Voltage for LED Driver Testing:

  • Provides adjustable AC output voltage from 0.1–300V, with a low range of 0.1–150.0V and a high range of 150.1–300.0V.

  • Allows engineers to configure different AC input voltage conditions when evaluating LED driver products.

  • Supports voltage adjustment for LED driver development, input voltage verification, and laboratory testing.

  • Voltage display resolution of 0.1V helps users monitor the configured output voltage.

• Wide Frequency Adjustment for Input Compatibility Evaluation:

  • Adjustable output frequency from 45–400Hz with a 0.1Hz adjustment step.

  • Supports LED driver testing under different AC input frequency conditions.

  • Built-in 50Hz and 60Hz quick-selection settings simplify commonly used power frequency configurations.

  • Frequency display resolution of 0.1Hz supports convenient monitoring during testing.

• Stable AC Output for LED Driver Evaluation:

  • Voltage stability of ≤1% and frequency stability of ≤0.1% help maintain consistent AC output conditions.

  • Output waveform distortion of THD ≤2% under rated resistive load conditions.

  • Output crest factor of 1.41 ±0.10.

  • Voltage soft-start gradually increases output voltage to help reduce sudden electrical impact on connected LED drivers and test equipment.

• Programmable Control and Communication:

  • Standard RS-232C and RS-485 communication interfaces support connection to PLCs, host computers, and automated testing systems.

  • Modbus RTU communication protocol supports integration into programmable testing setups.

  • Parameter preset function stores output voltage, output frequency, and output current upper-limit settings.

  • Programmable operation helps simplify repeated voltage and frequency configurations during LED driver testing.

• Comprehensive Protection Functions:

  • Built-in overcurrent, overvoltage, overtemperature, and short-circuit protection.

  • Graded overload protection automatically cuts off output after a specified delay according to the overload level.

  • For output current above 1.0 times and up to 1.1 times the rated current, output is cut off after 15 seconds.

  • For output current from 1.1 times to 1.2 times the rated current, output is cut off after 5 seconds.

  • Protection activation triggers an audible/visual alarm and displays the corresponding fault code.

  • Overtemperature protection threshold is 85°C ±5°C at the power device.

• Multiple Capacity Options for Different LED Driver Power Requirements:

  • Model 1 provides 350VA rated capacity for lower-power LED driver development and testing.

  • Model 2 provides 500VA rated capacity for medium-capacity LED driver verification.

  • Model 3 provides 1000VA (1KVA) rated capacity for higher-capacity LED driver evaluation.

  • Users can select the appropriate model according to the rated power and input current requirements of the equipment under test.

Technical Specifications

Model Comparison

Common Performance Specifications

Protection and Communication Functions

Mechanical and Environmental Specifications

Model Selection Tips

• Model 1 – 350VA: Suitable for low-power LED driver development, small-capacity driver testing, and laboratory evaluation of low-power lighting power modules.

• Model 2 – 500VA: A practical choice for medium-capacity LED driver testing, electrical input verification, and LED driver production inspection.

• Model 3 – 1KVA: Provides higher rated output capacity for testing higher-power LED drivers and compatible AC-powered lighting equipment, subject to the actual input current and startup requirements of the equipment under test.

Application Scenarios

1. LED Driver Input Voltage Verification: Adjusts AC output voltage to evaluate how LED drivers operate under different input voltage conditions within the power supply's rated range.

2. LED Driver Input Frequency Testing: Provides adjustable output frequency from 45–400Hz to evaluate LED driver operation under different AC input frequency conditions, including commonly used 50Hz and 60Hz settings.

3. LED Driver Startup and Functional Testing: Supplies configurable AC power for checking LED driver startup and basic operating behavior under selected voltage and frequency conditions.

4. LED Driver R&D and Design Verification: Supports engineers in evaluating LED driver prototypes and checking their electrical operating behavior during product development.

5. LED Driver Production Line Inspection: Parameter presets and 50Hz/60Hz quick selection simplify repeated test configurations, while RS-232C / RS-485 communication supports integration into automated production testing systems.

6. LED Lighting Power Module Testing: Provides adjustable AC input power for electrical evaluation of compatible LED lighting power modules with different rated capacity requirements.

7. LED Driver AC Input Compatibility Evaluation: Allows users to configure different AC voltage and frequency conditions when evaluating the input requirements of LED driver products.

Choose the programmable AC variable frequency power supply that matches your LED driver testing requirements. With adjustable 0.1–300V output, 45–400Hz frequency control, three capacity options, programmable parameter presets, and standard RS-232C / RS-485 communication, this series provides a flexible AC power solution for LED driver development, input condition verification, and production testing.