QuantAsylum QA451 Programmable Load (8 Ohm/4 Ohm)

  • BrandQuantAsylum

Description

The QA451 is designed for high-speed testing of amplifiers. If you are testing at the module level (with modules designed for single supply operation), the QA451 allows the on/off control and current measurement of the supply rail. The QA451 is a companion product to the QA403 Audio Analyzer. When combined, the products work together to ensure fast, repeatable automated measurements of audio power amplifiers up to several hundred watts.

Features

  • Programmable 4/8 Ω load
  • Fully isolated from PC
  • USB powered
  • Up to 200 W for 220 mS
  • DC Current Sensing
  • Integrated 6th order LPF

REST Interface

The QA451 can be controlled manually from a PC application or controlled using a web-based REST interface.

Measuring Current

The QA451 allows low-cost external fixed-voltage supplies to be used to power your amplifier during test – dramatically reducing your investment per test bay. The QA451 integrates a high-side switch, enabling on/off control of the supply to the amplifier. When turning on the supply, a momentary soft-start circuit ensures the amplifier-under-test isn’t exposed to high currents that might overstress components. And during operation, the QA451 provides an isolated current measurement, allowing up to 15 A (peak) of DC current to be measured with 10-20 mA of resolution. This permits automated efficiency measurements to be easily made – a primary predictor of whether the amplifier was assembled correctly.

4 and 8 Ω Loads

The QA451 provides both 4 and 8 ohm resistive loads. The loads are thermally protected using fast, high-accuracy digital thermal sensors ensuring that fault conditions won’t damage the QA451.

Downloads

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The QA451 is designed for high-speed testing of amplifiers. If you are testing at the module level (with modules designed... Read more

Out of stock

€ 399,00 incl. VAT
Members € 359,10

    Details

    SKU: 20707
    EAN: 0860010487211

    Description

    The QA451 is designed for high-speed testing of amplifiers. If you are testing at the module level (with modules designed for single supply operation), the QA451 allows the on/off control and current measurement of the supply rail. The QA451 is a companion product to the QA403 Audio Analyzer. When combined, the products work together to ensure fast, repeatable automated measurements of audio power amplifiers up to several hundred watts.

    Features

    • Programmable 4/8 Ω load
    • Fully isolated from PC
    • USB powered
    • Up to 200 W for 220 mS
    • DC Current Sensing
    • Integrated 6th order LPF

    REST Interface

    The QA451 can be controlled manually from a PC application or controlled using a web-based REST interface.

    Measuring Current

    The QA451 allows low-cost external fixed-voltage supplies to be used to power your amplifier during test – dramatically reducing your investment per test bay. The QA451 integrates a high-side switch, enabling on/off control of the supply to the amplifier. When turning on the supply, a momentary soft-start circuit ensures the amplifier-under-test isn’t exposed to high currents that might overstress components. And during operation, the QA451 provides an isolated current measurement, allowing up to 15 A (peak) of DC current to be measured with 10-20 mA of resolution. This permits automated efficiency measurements to be easily made – a primary predictor of whether the amplifier was assembled correctly.

    4 and 8 Ω Loads

    The QA451 provides both 4 and 8 ohm resistive loads. The loads are thermally protected using fast, high-accuracy digital thermal sensors ensuring that fault conditions won’t damage the QA451.

    Downloads

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