Power Adapter Testing AC Variable Frequency

Power Supply 45-400Hz 350VA 500VA 1KVA with

Adjustable Output Voltage

Overview

This series of programmable AC variable frequency power supplies is designed for power adapter testing, providing adjustable AC output conditions for evaluating adapter input performance and operating stability. With an output voltage range of 0.1–300V and a frequency range of 45–400Hz, it allows engineers to configure different voltage and frequency settings when testing power adapters designed for various AC input requirements.

Available in 350VA, 500VA, and 1KVA models, this series supports different testing capacity requirements, from low-power adapter development to higher-capacity power product verification. Equipped with standard RS-232C and RS-485 communication interfaces and Modbus RTU protocol, it can connect to PLCs, host computers, and automated testing systems for convenient programmable operation.

Key Features

• Flexible AC Input Condition Testing:

  • 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, supporting power adapter testing under different voltage conditions.

  • Wide output frequency range of 45–400Hz with a 0.1Hz adjustment step, allowing evaluation of adapter operation at different input frequencies.

  • One-key access to common 50Hz and 60Hz voltage/frequency combinations simplifies routine power adapter testing.

• Stable Output for Adapter Verification:

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

  • Output waveform distortion of THD ≤2% under rated resistive load conditions provides a low-distortion AC source for testing.

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

• Programmable Control and Communication:

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

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

  • Programmable communication makes the series suitable for repeatable adapter testing procedures and integration into production test setups.

• Comprehensive Protection Functions:

  • Built-in overload, overcurrent, overvoltage, overtemperature, and short-circuit protection helps protect the power supply and connected equipment.

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

  • Visual alarm indication and corresponding fault codes help users identify protection events.

• Convenient Testing and Monitoring:

  • Display functions provide readings for output voltage, current, power, frequency, and power factor.

  • Three capacity options allow users to select a suitable model according to the power requirements of the adapters being tested.

  • Benchtop construction is suitable for adapter development, laboratory verification, and indoor production testing environments.

Technical Specifications

Common Performance Specifications

Model Selection Tips

• Model 1 – 350VA: Suitable for low-power adapter development, small-capacity power adapter testing, and laboratory verification of low-power electronic devices.

• Model 2 – 500VA: A practical choice for medium-capacity power adapter testing, adapter performance verification, and electronic production line inspection.

• Model 3 – 1KVA: Provides higher rated output capacity for testing higher-power adapters and power conversion equipment, subject to the actual input current and startup requirements of the device under test.

Application Scenarios

1. AC Input Voltage Verification: Adjusts AC output voltage to evaluate how power adapters operate under different input voltage conditions.

2. Input Frequency Testing: Provides adjustable output frequency from 45–400Hz to verify adapter operation under different AC frequency conditions.

3. Power Adapter Functional Testing: Supplies configurable AC power for checking adapter startup, normal operation, and basic functional performance.

4. Adapter R&D and Design Verification: Supports engineers in evaluating power adapter prototypes and verifying operating behavior during product development.

5. Production Line Adapter Inspection: Connects with PLCs and host computers through RS-232C / RS-485 communication for integration into automated testing setups.

6. Power Conversion Equipment Testing: Provides adjustable AC input power for functional verification of compatible AC-powered power conversion equipment.

Choose the programmable AC variable frequency power supply that matches your power adapter testing requirements. With adjustable 0.1–300V output, 45–400Hz frequency control, three capacity options, and standard RS-232C / RS-485 communication, this series provides a flexible AC testing solution for adapter R&D, performance verification, and production inspection.