Whitepaper - Measurement of Loss in High-Frequency Reactors

White paper / Application

Power analyzer measures reactor Total loss and Core loss

Why Should Reactor Loss be Analyzed?
By directly measuring reactor loss, as well as iron loss and copper loss ratios within reactor loss, you can
significantly reduce research and development time and identify areas of improvement for reaching even
higher efficiency and smaller form factors.

  • High iron loss -> Issues with the core likely; focus on improving the structure and materials.
  • High copper loss -> Issues with the winding coil likely; focus on improving the winding method or materials.
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Featured Products for 2020


The PW6001 is Hioki’s flagship power analyzer, featuring high accuracy, wide band, and high stability for measuring electrical power from DC to inverter frequencies, providing maximum of 12 channels* to support single- and three-phase inverter motor system measurements and next generation devices such as silicon-carbide (SiC) inverters.

*When synchronizing two 6-channel models connected via optical link.

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The PW9100 is a direct AC/DC current measurement option for the PW6001 and 3390 series Power Analyzers that delivers wide bandwidth and high accuracy testing across 3 or 4 channels of input. The option is ideal for applications requiring direct input connections when testing the power conversion efficiency of motors, primary and secondary side of inverters, hybrid and electric vehicles, and renewable energy equipment.

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The MR6000 overcomes all barriers to reach new ground and meet challenges that are yet to be seen. World class specifications, operability and design - Hioki’s newest memory recorder has been re-engineered from top to bottom, delivering unprecedented performance that will change how you look at waveform recording.

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Hioki flat bandwidth current probes are best-in-class current sensors for use with Memory HiCorders and high performance oscilloscopes. The CT6710 is a 3-range, high-sensitivity current probe that offers a wide DC to 50 MHz bandwidth and 200 μA to 30 A input, letting your capture signals across an expansive current range, from steady state to transient currents, when developing switching power supplies, inverters, and motor controllers.

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Hioki LCR Meters and Impedance Analyzers range from 1mHz to 3GHz devices to suit a wide range of applications in the testing of electronic components. The IM7587 Impedance Analyzer offers a top measurement time of 0.5ms over a 1MHz to 3GHz frequency range and superior stability, making it ideal for R&D as well as high volume production of ferrite chip beads and chip inductors.

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  • One test fixture for various shapes and devices
  • Test fixture for IMPEDANCE ANALYZER IM7580 series
  • Measure high-frequency impedance of devices of any shape using the IM9202
  • Measurement frequency bandwidth of the IM7580 Impedance Analyzer series
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Memory HiLogger LR8450

The LR8450 Memory HiLogger is a portable logger capable of measuring multiple channels of voltage, temperature, resistance and humanity signals. The LR8450 offers 1ms sampling across up to 330 channels, and can be paired with 5 different types of plug-in input units and wireless modules. The new input modules can measure strain and distortion and ideal for automotive applications involving the evaluation of vehicle components as well as robotic equipment.  

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