About Power Amplifier

A vibration test system requires Power Amplifier to drive the shaker. The amplifier amplifies the signal from the vibration controller and sends it to the vibration generator. We have a wide range of lineups, from small to large, depending on the system.

Role of Power Amplifier Increase the signal from the controller, then send it to shaker. Controller signal Increased signal shaker Receives the signal and converts it to vibration excitation output

Mini Power Amplifier

VSA-H40A VSA-H751A
VSA-H152A
VSA-H181A
VSA-H102A

Ideal for small precision vibration test systems with accurate and intuitive digital power display

The VSA series comprises high-performance, low-power amplifiers that deliver up to 1,000 VA of output with 95% energy conversion efficiency. Operating across a wide frequency range of 0.1 Hz to 10,000 Hz, they are compatible with a variety of miniature shakers and exciters. An integrated digital LCD screen and push-button gain adjustment enable intuitive, precise control over output voltage and current. Built-in safety protections and clear status indicators ensure operational safety and simplify troubleshooting.

  • Features

    ・Low frequency down to 0.1Hz

    ・Excellent frequency response

    ・High S/N ratio・Low harmonic distortion

    ・Manual adjustment possible

    ・Abundant safety guarantee

  • Specification

    Model VSA-H40A VSA-H181A VSA-H751A VSA-H102A VSA-H152A
    Max. output power (VA) 40 180 750 1000 1500
    Rated output voltage (Vrms) 12 12 50 53 -
    Rated output current (Arms) 4 15 15 19 -
    Max. input voltage (Vpeak) 1 1.5 1.5 2.5 -
    Dimensions (W × D × H) (mm) - 455 × 490 × 110 455 × 505 × 110 445 × 505 × 110 505 × 630 × 1951.5
    Weight (kg) - 9.2 11 10.5 26
    Amplifier model Built-in External External External External

Power Amplifier “VSA series”

VSA series

Fully digital IGBT, Max. instantaneous 3x output

VSA-H series power amplifier adopt the latest IGBT technology and MCU + DSP + FPGA architecture design, and use advanced digital control strategies to ensure high conversion efficiency and high security for each module and the entire system. I will secure it.
Single power module is designed for standard 8kVA output with high peak power margin.
It can meet the working requirements of most shakers.

VSA-H series is designed based on integrated logical unit, power supply unit and control unit, with high equipment reliability, flexible configuration, energy saving and easy maintenance.

Smart Power Amplifier “VSA-D series”

VSA-D series

The smart VSA-D Series Power Amplifier enhances usability with a touch panel integrated directly into the main unit for local control. This functionality is extended by updated controller software, allowing gain adjustment and system start-up to be initiated remotely from a computer. Together, these features define a truly intelligent and user-friendly amplifier.

■ Standard 8KA module Latest IGBT

■ Latest IGBT technology

*You can place the VT vibration controller and display (sold separately) on top as shown in the photo.

Features

  • ・All-digital architecture design, MCU + DSP + FPGA co-processing architecture.

    ・Modular design, freely expandable according to output power requirements.

    ・Excellent noise characteristics with switching frequency up to 150KHz due to advanced soft start technology.

    ・Adopts a new IGBT power device with high withstand voltage, high power, and high reliability.

  • ・Adopts advanced automatic current sharing task, the unbalance degree of parallel current sharing is less than 1%.

    ・High conversion efficiency >95%.

    ・Full protection and interlock function.

    ・With self-adaptive center zero adjustment function.

    ・Excellent interface and comfortable operation.